chemical vs mineral sunscreens

[@annas.770]

Came here to find advice on what sunscreen to buy, left with a degree in organic chemistry. Awesome.

[@bunnybunny4263]

Which one is the best mineral or chemical??? Idk

[@lanngunn6512]

Lol, me too. Did you find a safe sunscreen? Im using 'cetaphil sheer mineral ' and still have mo clue what it is. Well on with the quest

[@lanngunn6512]

@@GhostRyder-max thanks+!

[@jitendragaira6744]

😂😂

[@brijesh6270]

@@lanngunn6512 its an amazing sunscreen in my opinion exept the place i live in its kinda expensive

[@aaliyahnuyen9939]

UVA - aging UVB - burning

[@RoflJoker1994]

Jokes.. I just don't like UV ray altogether. Applying and reapplying sun screen every 2 hours makes me wanna drop kick a baby

[@boo766]

@@RoflJoker1994 ew

[@София-д3р7д]

@@RoflJoker1994 I also avoid the sun on my face altogether, if I really have to go under the sun, I use the tiny umbrella I carry on my bag and sunscreen. I'm happy with Bondi sand tanning lotion, when I want a tan.

[@RoflJoker1994]

@@София-д3р7д Lol I do the same ! I wear sun screen everyday regardless but when I have to walk in the sun I use an umbrella.. always get weird looks from people. This one time a guy drove past as he yelled “it’s not raining! Where’s the rain??” 🤣

[@София-д3р7д]

@@RoflJoker1994 Lol...I get the looks too, but never had people asking me why. Honestly I got used to it. But I hope you get your weekly or monthly Vitamin D3, if you avoid the sun so carefully. I take 1 (40,000 IU) once every month. I used to have low Vitamin D level, now it's on the right level.

[@nina-of6qr]

guys i was 23 when i started using suncream. pleasee protect your skin, face & body. i have to many moles and i regret it so much.

[@asiyaalhaddad]

@@icerobot3359 tbh it depends on where you live in the world

[@jenniferlopezegyptfans6505]

@@icerobot3359 it also depends on if she reapplys her sunscreen or not

[@nina-of6qr]

@@icerobot3359 im too pale and sun exposure its trigger

[@bornalee990]

Same condition 😢

[@farhanahaquemohona45]

@@icerobot3359 I'm just 21 and I've mole since i was 18.. I was not aware of the importance of sunscreen.. That's why in 2019 I didn't apply any sunscreen and went to do field work for research purpose. In 2020 I just noticed my moles just tripled. I regret now..

[@ManicxAnimations]

I think my chemistry teacher did something wrong because I hate chemistry but this was interesting AF!

[@MA-xd9zl]

Maybe it’s the way she taught or she just didn’t loved what she did, everything can affect how we perceive a class in school. I once had a history teach that was super snobby but he loved so much what he taught that I loved the classes, but no him 😂 I mean he didn’t liked us too so.

[@samaradashwood1491]

people love blaming other people about everything

[@kelvinpyaeko]

Blaming your teacher for your supposed lack of interest 💀

[@water9584]

Chemistry is very interesting!!

[@ManicxAnimations]

​@@kelvinpyaeko Actually I have quite some interest in a lot of scientific subjects like math or biology, where I did really well. But our teacher in chemistry had extremely boring lessons where he also didnt really explain well enough so I did really bad and never got into it before I got to vote the subject off. Teachers have a lot of influence on how you perceive certain subjects.

[@amela9608]

I apply sunscreen every day and just NOW I feel like I actually know why? Every skincare video on sunscreen should have a link to this video lmao

[@Tzara86]

How did humans survive this long to suddenly need to buy something to stay "safe"?

[@kuimiko]

@@Tzara86 because skin cancer I think

[@sadiemakesmesmile]

@@kuimiko why is there more skin cancer now than there was before?

[@clarenb3004]

@@sadiemakesmesmile global warming

[@deemah3602]

isn't that common sense smh

[@Zetsuke4]

How does such an insightful video have so few views??!! I wished i found your channel sooner! Learned so much!

[@satanlucifer4437]

Heads up: while glass may protect you from getting a sunburn, UVA rays easily pass through glass and can contribute to skin aging. Being inside a car or house next to a window will not fully protect you from aging, which is why it is beneficial to wear a daily spf

[@orangechickengorl]

Is there a form of glass for cars thats protect against UVA/UVB rays?

[@satanlucifer4437]

@@orangechickengorl yes! I should've been more specific. Tempered glass in particular (the glass used in a car's side windows) does not block UVA (and only blocks about 65% of UVB -- so you could still theoretically burn). *Laminated glass* (the glass used for the windshield) blocks almost 100% of UV radiation!

[@checkerational]

Ok but I've read that regardless of whether you sweat, a sunscreen is basically useless 2 hours after applying, and it's kinda unaffordable to re-apply adequately on all exposed skin every two hours all day? I'm going to see if there's something I can buy that makes the side-windows more protective...

[@Iquey]

Thanks for the tip Satan.

[@Angi3maname]

@@checkerational tint the windows. It blocks the sun. Just don’t go too dark because it’s harder to see at night. My left arm was burned and a complete different color from my right arm, but now with tinted windows, it blocks a lot of it.

[@sct4040]

Now I know why the ozone layer is so important for life on earth.

[@imjeannette]

but human destroying it

[@nicholaslewis279]

Yeah..mineral sunscreens make me look like a corpse so I just use Korean and Japanese chemical sunscreen.

[@emanabobneh9435]

use black girl sunscreen

[@paulo0e]

Mineral sunscreens with color are great. Iron oxides, besides providing color to match one's skin tone, also help protecting against a huge spectrum of sun radiation. They can reflect not only ultraviolets, but also visible light, specially the "high energy visible" part from blue to violet that's somewhat aggressive, and infrared. It may be difficult to find the proper tone, but mineral sunscreens are awesome.

[@coyfish391]

@@emanabobneh9435 I was just gonna say that! I think that their sunscreen is chemical though.

[@orbital16]

Yeah, seems that the white casts effect of mineral sunscreen is mostly present in western products. In Asia, there's a lot of option for physical sunscreen which only takes a minute or two to blend onto our skin and it doesn't make us looking dirty once our face get sweat😂

[@ToptierGod]

Black people don’t need sunscreen

[@christianpaulh]

This is the most educational sunscreens video which I had ever seen 🙂

[@Meleny95]

Hey everyone, if you find chemical sunscreens to be your preferred method of sun protection, you should look into Korean made ones, they stand to a Korean standard and do not contain the problematic ingredients (such as Oxybenzone, Avobenzone, etc.)

[@sisvic]

Any suggestions as for brands?

[@theclassicalgirl]

avobenzone is not problematic on its own

[@Meleny95]

@@theclassicalgirl How's so?

[@theclassicalgirl]

@@Meleny95 the chemicals that stabilize it are problematic not avobenzone per se

[@herbivore15]

@@theclassicalgirl avobenzone is pointless to use on its own, that's why they add the other chemicals to stabilize it. it degrades quickly when exposed to UV light making it a very poor choice for a sunscreen. i'd rather use chemical filters that are actually photostable like the ones in japanese or korean sunscreens. american sunscreens are piss poor if you're looking for UVA protection of any sort.

[@SirLightfire]

The organic chemistry of how sunscreen works is why I'm here

[@DoctorKlioze]

Fascinating, isn't it?!

[@SirLightfire]

@@DoctorKlioze it is. I just got curious, but it's hard to find videos that talk about the chemistry. Most videos leave it at "it absorbs / reflects the UV"

[@ikawulandari2807]

Another reasons to re-apply sun cream at least 3 times a day. Thank you very much 💕

[@Potatocheesebread]

This honestly deserves more view. Hats off to you, doc. This is very informative

[@Kaydeleon]

I’m not even taking chemistry but is highly interesting.... loving it

[@kiasfishies]

Guess I have to rewatch this cuz I still don’t understand which sunscreen is better 🥲

[@cookie6113]

It mostly depends on your skin type! They are both good but they just protect you in different ways, some even have mineral and chemical protection. Generally chemical ones = absorbs and turn into heat, mineral ones = reflect and scatter light. The experts say that if you have sensitive skin you might wanna choose a mineral one, and if you dont you can choose the one you want! The most important thing however, is to choose one you will actually use.

[@Sipu97]

It depends on whether you want to consider health and environmental problems or only how well it blends in.

[@morgianasartre6709]

@@Sipu97 Don't fear monger please.

[@Sipu97]

@@morgianasartre6709 And you want to live in denial? Sure. But the truth is that all UV filters in nanoparticles are detrimental to environment and health. I hope that there are already new innovations that will solve those problems but right now the best option are vegan and eco certified non-nano mineral sunscreens.

[@rachaelf5903]

@@Sipu97 this only works if you’re white. It’s not just about “how well it blends in”, mineral sunscreen literally makes my skin blue. I’m sure you would be singing a different tune in the same situation

[@kvkaf]

The only problem in mineral Sunscreen that i can't stand with just its whitecast! Bcs the whitecast make me like pantomime.

[@DoctorKlioze]

I agree!

[@MyChihuahua]

There are mineral powders used as makeup that come in various colors. SPF 20 naturally

[@estefir2930]

I recommend colorescience sunforgettable total protection face shield. Or cotz falwless complexion. Absolutely amazing face sunscreens no whitecast!

[@MyChihuahua]

Jane Iredale Powder Me SPF. Not makeup

[@carlanilssen7918]

I mix a BB cream in with my mineral sunscreen. No white cast!

[@Daria-dg5el]

This is a great video. Lots of great detailed information i was looking for. As a side note, it looks like applying a product over SPF does not affect the SPF. So applying makeup over sunscreen does not dilute it.

[@DoctorKlioze]

Definitely true for the barrier sunscreens (zinc-oxide and Titanium-dioxide ). Should be true for the chemical sunscreens as well as long as your not applying the product too vigorously and wiping the organic molecule from the skin!

[@Daria-dg5el]

@@DoctorKlioze Thanks!

[@foziyajan766]

@@DoctorKlioze which sunscreen is best for freckles

[@DoctorKlioze]

@@foziyajan766 I don't really think it matters what type your using as long as you use a sufficient amount of whatever product you choose. Both mineral and chemical should do the job if applied as prescribed.

[@sarahg2721]

This is great, commenting to feed the algorithm ☺️

[@sepidehsoleimani5637]

This is a perfect video, but I wish you added references too. It would be wonderful.

[@Cjabz56]

True very important^

[@sct4040]

This is basic science.

[@Drlovingstrays]

Sunscreen is oh so important especially if you can't protect yourself from sun. My mum,at 60, has every type of sun damage. Whereas my grandma always used to protect herself from the sun. She didn't use sunblock but always made sure to carry umbrella everytime she went outside. She has better skin than my mom. I've made by bro and maa use sunblock everyday now.. Indoors or outdoors and their skin looks so much better even after using the sunblock for a year.

[@udittiwari8240]

Production quality is fascinating

[@Jean_Genie]

It would be interesting to get your opinion on the photostability of most commercial sunscreens, as manufacturers don't make that available for the consumer and really is quite important.

[@lara9432]

^^ This. I’m so confused about free radicals being produced from mineral sunscreen.

[@beebakesenpai4292]

So what do astronauts put on their skin while they are in space? How will they protect their skin from the UVc rays?

[@maief9638]

spacesuit with reflective helmets

[@beebakesenpai4292]

@@maief9638 arigato sensei🙏

[@chevon1920]

Most of the astronauts don’t go very far relatively. They are still within the earths magnetosphere which also protects against solar radiation.

[@jouster909]

Nothing cause nobody has been to space

[@binnyverma2660]

This is undoubtedly the best explained video on sunscreens I have ever come across!! 👌👌

[@christinajackson2662]

Wow, this was incredibly informative, thank you! I feel like we’re headed into a sunscreen renaissance with more elegant formulas being released. I prefer mineral sunscreens so I can protect my eyelids with no risk of burning, and have been surprised at how nice new versions are. I’m using First Aid Beauty’s product which doesn’t dry my skin and easily disappears. I’m light skinned, but I have no doubt it would vanish on dark skin too. Just wish it was cheaper, lol. I’m also exploring Australian and Korean brands too, who are both way ahead of the game.

[@SirLightfire]

I can't use the organic sunscreens on my face or head (at least, oxybenzone and the other oct* ones, which seem to be a the most common) It makes me burn like I just rubbed habanero juice on my face. I can use them everywhere else, just not the face.

[@melvajulie3302]

I live in indonesia and here is summer everyday. I hv sensitif skin and i use mineral sunscreen from neutrogena.. I love it

[@infinite_eye2727]

Wow incredible. Thank you for the depth of knowledge and unbiased information provided here. With all the marketing and bias media agendas it’s difficult to choose what type of sunscreen and protection best suits everyone’s individual needs. You provided most necessary information to help make the most informed choice possible. I am so grateful. Thank you!

[@spardarxsv9705]

Dude I've never wore sunscreen and last two years I've been under the sun. Specially this last year I'd get hit by sunlight about 7mins although I try staying in shade. Wasnt till I started working on September that I wasnt wearing sunscreen or sweater to cover my hands or forehead that sun hit me the most. I'm almost 22 and only now I started using sunscreen... tbh I been worried about my sun exposure.

[@ok-ke5cx]

22 is very young you’ll be fine, better late ( although you are not starting late ) than never !

[@totally_a_spy]

Most people start layer in life. You're good

[@SaltiBebe]

You're not too late, and plus, thankfully sunscreen is now a thing. Imagine our parents' generation, they all have sun damage because of all the tanning they did so we should consider ourselves lucky that we can start now! ;)

[@lilysbox2139]

me too.. when I was younger I cycle and I got burn marks on just because of sun.. had to be careful now..

[@avalon1518]

reminded me of my organic chemistry course that i have took in the previous semester definitely was an important course though it was optional

[@Iquey]

I've wondered about how chemical sunscreens, being absorptive, tend to make people feel a bit hotter in the sun, while you'd think mineral sunscreens being reflective, would allow you to feel cooler in the sun, even by just a little bit. For this reason would chemical sunscreens be a nice choice for having bare skin during cooler cloudy days such as in the fall and winter, vs, maybe mineral sunscreen on hot summer days?

[@pleasedontlookforme8036]

Not really, because the mineral and chemical suncreams either reflect or absorb UV radiation, whilst heat is absorbed via infrared radiation from the sun and anything else that emits heat. They're two different types of electromagnetic waves on the spectrum, and suncream doesn't really do anything to infrared radiation, so using mineral or chemical won't really affect how hot you get.

[@jbalazer]

@@pleasedontlookforme8036 , heat can be generated by the absorption of any type of electromagnetic radiation, not just infrared radiation. UV light and visible light can be turned to heat when absorbed. Sunscreen chemicals turn the UV light they absorb into heat.

[@troydown6669]

The PA+ on sunscreen is Protection Grade of UV-A more the + sign more the protection from UVA. PA+++ is usually enough

[@ellakosovic1290]

this is helpful!! i have a bad allergy to all chemical sunscreens I've tried and it's really hard to decipher what ingredients actually cause the allergy. still looking for a good mineral sunscreen that isn't greasy and pasty tho.

[@rochellesammy7176]

Colorscience

[@girlnamedbrit979]

try the replenix brand, no white cast and feels almost like a makeup primer. Its the only facial sunscreen I'll use, seriously 10/10 recommend!

[@arlet101]

For me it was fragrance. Almost all products have it so going without made a difference to my skin reaction

[@Deandra89]

I feel your pain! I have rosacea and had the hardest time finding a sunscreen that works. The one I’ve been using for a couple years is by SkinCeuticals ( I purchase from LovelySkin.com) and I love it. I use the tinted one. Hope you find something that works for you

[@Kswolrd1538]

Pacifica makes a great “bronzing” mineral sunscreen with 20% zinc and it’s not greasy. I find it a bit stiff so I add a bit of serum to it to make it easier to apply

[@mannatrattan]

Wow . I am in 10th grade and learning about organic chemistry, so I was able to understand this video better. Thank you for providing this enlightening information

[@rache5149]

I have a question. Does sunscreen break down by time or by sun exposure? If you're indoors for 2 hours would you have to reapply?

[@DoctorKlioze]

That is actually a great question! Unfortunately, I don't have a good answer for you. We know the chemical sunscreens are absorbed by the skin over time which would definitely decrease the epidermal concentration and therefore, reduce the ability to convert UV energy to heat. There is also some degradation of the molecular structure over time by the UV light further reducing concentration. While both mechanisms are contributory, I can't tell you for sure which one is dominant. May be a good science fair project!!

[@simonsaysism]

I have heard that aside from degradation due to sun exposure, your sunscreen's coverage can also be worsened by things like your own sweat/sebum production, movement of the face muscles, and accidentally rubbing it off with your hands/clothes/etc. Therefore it should be touched up after 2 hours regardless of sun exposure.

[@rache5149]

@@simonsaysism oh interesting

[@MrBen91091]

@@rache5149 there are also special foils to stick on windows which reduces UV light too

[@orbital16]

@@rache5149 excellent question that bother me as well. But according to Paula's Choice website one of the leading experts in skincare, it breaks due to UVA and UVB exposure not by the passage of time. You can visit their website or just google: sunscreen facts paulas choice, hope this helps.

[@banditsmia9650]

My skin gets super red and hot after I apply chemical sunscreen. Feels like burning. Only mineral ones work for me😭

[@Mina-iq5gg]

me too! (: i’m super sensitive to most chemical sunscreen. only chemical one that worked for me is sunbum but even it makes my skin a bit warm :\

[@kimzales87]

Same, sucks as I'm medium dark toned. I usually apply powder on top

[@annas.770]

Same here, chemical sunscreens act like a chemical peel on my skin and I get super itchy and red. I've tried more expensive brands than I can really afford, but ironically I've ended up having the most success with good old Banana Boat.

[@cobishome]

I did not expect to receive an impromptu organic chemistry lesson

[@gingerlove7739]

This is the clearest explanation which is so simplified that every bit of the info was absorbed in my average brain 😆

[@veronikapavlechova6877]

European sunscreens are usually straight-forward labelled whether they protect the skin from UVA/UVB or both.

[@loveurself3020]

I saw this product called strobe cream stating sunscreen spf 50 and acts as make up also. The formulation is - (Octocrylene Butyl Methoxydibenzoylmethane, Ethylhexyl Methoxycinnamate Benzophenone-3 Ethyl Hexyl, Glycerin, Caprylic Capric Triglyceride, Stearyl Alcohol, Mica Silver, Mica Gold, Mica Rose Gold, Sodium Acrylate, Acryloyldimethyltaurate, Dimethylacrylamide Crosspolymer, Isohexadecane, Polysorbate 60, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Cetyl Alcohol, Fragrance, Salix Alba (Willow) Bark Extract, Theobroma Cacao, Cetearyl Alcohol, Cetearyl Glucoside, Phenoxyethanol, Butyrospermum Parkii, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Tocopheryl Acetate) - are these fine on the skin? will it really act as sunscreen which protects from UV rays? Pls advice. Thank you

[@DoctorKlioze]

The product definitely contains known organic sunscreens and I'm confident provides the SPF it claims. However, I'm personally leery of any product ingredient list that looks more like a page out of a doctorate organic chemistry thesis than an OTC consumer product- especially if its going to be rubbed on my skin or ingested! Many countries are now banning some of these common organic sunscreen molecules as they have been found to be toxic to aquatic life. I'm assuming if they're bad for our sea-brothers, they're probably not to good for as either!! I have basically switched to the mineral sunscreens, especially Zinc Oxide if available. Whatever it's worth, that's my current personal recommendation! Good luck!!

[@shantk7378]

Beautifully done.

[@kenjik6512]

If you have sensitive skin or rosacea, I DO NOT recommend chemical. I think physical is way better although most leave a small white cast.

[@nadiaarsenijevic8594]

Hhhm it depends! Every single physical sunscreen I've tried (about 5 or 6...) have made my face flair up and breakout and I have very sensitive skin! I have found a chemical sunscreen that has really good protection, doesn't irritate my skin and doesn't have problematic ingredients in it (the la Roche Posay anthelios 50+) so I guess you just have to try different things and see what works for you!

[@Little_Duck_]

@@nadiaarsenijevic8594 totally agree...mineral sunscreens are often quite heavy for sensitive skin.

[@abd12459]

And its drying too .. its a hassle to put a moisturizer on top of a physical sunscreen so I opted chemical one .

[@suyon1004]

very informative video! I learned a lot! Thank you.

[@fatmaslh6306]

This video is amazing!! I'll support your channel cause you deserve more views !

[@fortune.]

Excellent presentation! I thoroughly enjoyed watching this. Way more confident in my choice of product now thanks!

[@angeliqueroux3017]

So, both, and all of it. ✨💪🌞

[@blessedhighlyfavored2157]

Your voice is calming and you explained this so nicely! 😃 all in all what would you personally say is the best option to protect the skin? I know that physical and chemical both work but if you had to choose one to protect your skin the most which would it be? 😌

[@DoctorKlioze]

I'm personally OK with either one. The spray form of the chemical sunscreen is so much more convenient an easier to apply then the cream mineral sunscreens in my opinion. However, because most people are less sensitive to the mineral sunscreens, I think those products are preferred by most dermatologists. Anyone know of a spray mineral sunscreen? That may be the best of both worlds!

[@kyrakytana]

@@DoctorKlioze The problem with spray-on sunscreens is that it is very difficult to use enough product to reach the SPF on the label (2mg/cm²), which equals roughly 1/4 tsp or the face or 1oz for the entire body. Depending on how even they spray distributes the sunscreen, you might also still have to distribute with your hands to get an even continuosu layer, making the spray function almost obsolete.

[@DoctorKlioze]

@@kyrakytana You are absolutely right! I've gone back to cream sunscreens myself and I try to use the mineral preparations whenever possible.

[@gebbakes]

The way this guy says Ps and Ns is so nice.

[@linneanordgren7770]

Commenting to boost this informative and super well made video!!!!

[@louisehelgesson5471]

I feel like we miss out on so many colors...

[@louisehelgesson5471]

@Barry Allen Yeah exactly. And that is why we are missing out :(

[@GirlDo3]

@Barry Allen ew

[@tahiranwar157]

Wow so informative. Thank you

[@fikrybinbakar8014]

great video with insightful information, thank you!

[@shhhquietplease6264]

Great video! But I still don't know which is better to use :( A lot of people say chemical sunscreens are bad for you, but I just want to know which you would consider most effective? Chemical or Mineral? The uv clip of applying mineral sunscreen really confused me.

[@meiruteshov4389]

I didn’t get it either. I was confused with the same part of the video

[@Sipu97]

Both are as effective. Mineral ones (non-nano) are better for health and environment. Chemical ones usually blend in better. My choice is a tinted mineral such as Alga maris.

[@JasminMiettunen]

Sipu97 is correct. If two sunscreens have the same SPF, they’re equally effective, regardless of what it's made from. The chemical just absorbs the rays so they don’t reach your skin and the mineral reflects it away from your skin. Chemical sunscreens kill beautiful coral reefs and cute little fishies, so that’s not nice.

[@Sipu97]

@@JasminMiettunen Nice to hear someone else confirming my thoughts :D Että kiitoksia vain.

[@morgianasartre6709]

@@JasminMiettunen Yet we shouldn't forget that there is a lot of cases of pale skin people reporting how mineral sunscreens just don't protect their skin from say melasma or freckle formation as well as chemical ones do. It all comes down to the individual in the end.

[@briterry4961]

What about blue light? I spend a lot of time looking at my laptop and phone.

[@simonsaysism]

The amount of blue light that is emitted by electronics is insignificant compared to the amount we get each day from sunlight. From what I've heard, blue light isn't a big health concern for most people, but if you're darker skinned, it can cause you to get dark spots. To protect from the blue light in sunlight, you have to use a mineral (inorganic) sunscreen. For more details, check out Lab Muffin Beauty Science here on youtube.

[@loveislove2359]

You can buy a blue light filter for your laptop, it's like a protective film stick on top of the screen.

[@kylebolton8147]

Most of the blue light we are exposed to actually comes from the sun. It’s generally not a big thing to worry about but if you are dark-skinned it can potentially cause more hyperpigmentation (dark spots). If you are concerned, try to find a mineral sunscreen with non-nano Zinc Oxide or a tinted sunscreen with Iron Oxides (these are probably the best ingredient for blocking blue light).

[@jewelryboxballerina]

Iron oxides.

[@Bigmellymelz_life]

Chemical sunscreen is definitely my favvvv

[@lasalsssa]

This is such a good informational video! Is it okay to apply something like a moisturizer over sunscreen? I have a mineral sunscreen but as someone with dark skin it tends to leave a strong white cast, I try to apply really slowly and massage a lot to make at least most of it go away but I'm scared applying a moisturizer on top would make the barrier less strong

[@lelylu]

Moisturiser before SPF. SPF s h ould be last on skincare routine. Then apply makeup

[@sawyer7623]

You should always moisturize before sunscreen, or even use a moisturizer-sunscreen combo product

[@moonbeamsbecca]

Chemical sunscreens should go first, and should be absorbed into your skin for 10/15 mins. Mineral sunscreens should be the last thing you apply as they reflect.

[@m.h6858]

I would think it's ok considering they make moisturizers WITH spf.

[@leozeld]

Wish we will have accessible tech in the future to see if we applied our sunscreens properly. It’ll be so beneficial

[@danielmedina1519]

Extremely informative. Thank you so much! 👍☝️

[@anoniemanoniem7927]

This was so much fun to watch, but I got a question sir. The reason I watched this video is to getter better insight in what kind of sunscreen I should buy. Since mineral sunscreen doesnt even allow the uvlight to penetrate the skin I would assume that that's better? So I should go for a vegan (important for me) mineral sunscreen with at least spf 35? Would that give me enough protection?

[@Kiwi-dl3sr]

I’m no expert but I’d say so

[@7lawaneeena]

Well most experts i guess say mineral is sooooo much better at protecting. But inmportant make sure its broad spectrum. And is mostly zinc oxide (i forgoy how to spell zinc oxide but it has zinc and ox something) :)

[@DoctorKlioze]

Both types afford protection but, because of the chemical nature of the organic sunscreens, I believe most dermatologists are recommending the mineral type compounds (Zinc and Titanium) to their patients. Neither the chemical or mineral products are derived from animal products so that shouldn't be a problem with your diet preference.

[@debrucey]

S Turk it depends what country you live in. Many European and Asian sunscreens have formulations that are superior to mineral sunscreens.

[@werewolfcountry]

I tend to user a mineral sunscreen (Jason : broad spectrum spf 30) round my eyes because chemical sunscreen starts stinging (I still use sunglasses on top) . Then chemical on my ears and neck as they tend to not leave a white caste and are easier to rub in. Like the experts say, there's no difference in terms of protection between the two, so I would just go by what suits you and the area of your body that you're applying it to.

[@estefir2930]

Always wear sunscreen, even if indoors! The best mineral sunscreens: Colorescience sunfogettable total protection face shield or Cotz falwless complexion. Both mineral SPF 50, no whitecast, amazing!

[@jayanti6651]

The chemical one is not good for coral, if you care enough for coral then use onl the mineral spf and its same as good.

[@helenalaney]

@Gwen it does though!! Lol! Do you also believe your garbage doesn't exist after it leaves the curb?

[@helenalaney]

@Gwen say whaaaat? the syntax of your question is as flawed as your logic. I was comparing the life of your litter to the cycle of water; "out of sight out of mind". Water, too, has a life after the drain and if you take that into consideration, you may care more about poisoning it. Maybe try a mineral sunscreen with no fragrance? Anywho, I don't care what you in particular do- I can't change that- but, I do care when people spread harmful mistruths to justify what they do. P.S. if it kills the coral, imagine what it does to your body!

[@pierce3195]

@@helenalaney it's quite ironic that you're telling "chemical" sunscreens to be toxic when they're supposedly those with carbons meaning they're organic by nature. Fearmongering sunscreens to be part of coral reef problems just shows lack of understanding on what coral reefs really find problematic in the current situation we are in.

[@gobbledygoook]

Very informative and very easy to follow! Thank you

[@milky3269]

This need more views!

[@joaopinto1843]

Amazing! Thank you. Wouldn’t spf 50 let 1/50 of rays pass and therefore be at 98%? While a spf 100 would let 1/100 and would be at 99%?

[@firstnamelastname904]

Yes

[@simonsaysism]

This 1/50, 1/100, etc system is for UPF clothing, not sunscreen SPF. they're different systems.

[@JasminMiettunen]

That’s why he specified SPF is nonlinear at 13:22, SPF 30 is already 97% protection. Your comment applies to UPF, which is different.

[@amypereira7477]

How about using a moisturizer? Should it be applied before or after the sunscreen?

[@sphynx7625]

Before sunscreen

[@oscarbear7498]

Gotta love the chemistry, well done sir

[@GAIALIFE842]

This was so good to understand how they work

[@tabathapoelstra]

This is such an amazing video. So well done!!

[@sophieneedsaladder]

I hate the feeling of any lotions on skin. I have to apply moisturizer at least to my arms and legs every day because of eczema, but ir hoes away quickly. I'm still not able to apply sunscreens daily, let alone several times a day, because of the discomfort that ensues - if love to hear if you guys have any tips on that

[@bellanthea]

i’m the same way. i use cerave mineral sunscreen which i should warn gives you MAJOR white cast. however i go over it with powder foundation and it looks fine. it doesn’t feel like i’m wearing moisturizer and is really comfortable! way better than greasy chemical sunscreen feeling.

[@sophieneedsaladder]

@@bellanthea I do well with cerave cleanser and moisturizer, I'll look their sunscreen up! Thank you for the tip!

[@areyoureadyforthis]

@@sophieneedsaladder Try asian sunscreens.they tend to be way less heavy and greasy.

[@sophieneedsaladder]

@@areyoureadyforthis I use biore aqua rich indoors, I'm not sure about protection outside tho. I don't expose to sun so much, just to run errands occasionally, I'm trying to form a habit for everyday use

[@suhailaaq2951]

@@sophieneedsaladder I’m not sure where you live but i live in Australia where the standards for sunscreen are much higher and each have to be tested before being put on shelves so they’re all strong. ‘Neutrogena Ultra Sheer clear face spf 30’ is REALLLY lightweight and its oil free so it wont cause pimples and breakouts, even if you apply a fuck ton. its not too pricey where i live either! if you have it at your nearby stores give it a try.

[@ST-111]

This is the actual info one needs to understand shit - but how much is adequate application??

[@metwursti]

Two finger lengths of cream for face- third for the neck. Or alternatively, half a teaspoon for face

[@piscesslut]

For face it’s 1,25g

[@katmomluv6995]

New to your channel and absolutely love this information! Chemistry in simplified terms. 👍🥰

[@vickyoli]

So most vehicles glasses block UVB but not UVA. That photo of the truck driver, showed the effects of UVA. UVA also causes photoaging and wrinkles. Am I wrong?

[@Who-qn5fl]

Spectacular video. Thanku so much!

[@mohasenabasher1849]

So which onek give best protection? Mineral or chemical???

[@juliagreen423]

Amazing video 👏

[@davidschonfeldwichers8981]

Amazing video! One thing tho, the idea that mineral sunscreens aka inorganic sunscreens protect by predominantly scattering uv is outdated. Both chemical and mineral sunscreens mainly work by absorbing and turning UV into heat!

[@simonsaysism]

I heard this too, so it surprised me to see how the mineral sunscreen looked on the UV camera. I guess the small amount of scattering is still enough to make it appear quite bright?

[@jennyhernandez6866]

Great video thank you

[@lei5912]

Do I need to wear sunscreen indoors with my curtains closed? Sunscreen is always so heavy on my skin and I hate to wear it

[@lg8159]

Yes you should. I think you need to find a spf that works for your skintype. I have a oily /mixed skin and use la roche posay Toleriane Shaka Fluid 50

[@JasminMiettunen]

Sunscreen is important to protect your skin, but people are getting a little too obsessive as a response to the lack of sunscreen use in the past. You definitely don’t need to wear sunscreen indoors.

[@Calmerism]

Why is making your skin absorb more uv light (shown as black areas where the lotion was applied) considered a good thing? I'd expect it to become brighter, ie more reflective, so most of the uv ray energy doesn't "remain" in the skin.

[@Radjehuty]

What UV wavelengths did the camera pick up? It was my understanding that Zinc oxide and Titanium Dioxide don't just simply reflect/scatter UV light. The first 90-95% of bands between UVB, UVA II and some UVA I are absorbed while the longer wavelengths of UVA I and in to visible light are reflected/scattered. This should be why mineral sunscreens should be darker but not totally black like chemical sunscreens.

[@DoctorKlioze]

I can't answer that but I can tell you I used a Canon EOS Rebel T5 modified to be sensitive to the UV spectrum (UV filter in front of the CMOS chip was removed). I hope that helps.

[@adrianadetrinidad901]

I learned so much from this video. Thank you!

[@lolitalolita4015]

So mineral or chemical protects better?

[@anipodat394]

9:35 Isn't the "alternating single and double bonds" actually inaccurate? I believe the six bonds are in fact indistinguishable due to "electron delocalization" and the electrons are spread throughout the ring in a sort of hybrid between a single and double bond. This can be represented as a circle inside the benzene hexagon, which is a more accurate understanding.

[@nayanikau2059]

Excellent explanation

[@sb7687]

Using percent blocked, the scale seems non-linear. But if you look at the percent transmitted(ie: dosage you will receive), this becomes more linear. Eg: If you have SPF - 50 as the baseline at 99.0% blocked or 1.0% let through - SPF 100 = 0.5% - twice as effective as 50 - SPF 50 will allow 1% - SPF 25 will allow 2% half as effective as 50 etc. This is a much more representative way of talking about SPF. Marketing will always use the % blocked metric, since it seems like there is not much difference between say SPF 30 and SPF 100. eg: 97% vs 99% But in reallity, 100 is 3 times as effective as 30.

[@DoctorKlioze]

Great info! Thanks!

[@kadelu1137]

Great video. Would you recommend to apply a mineral sunscreen over a broad-spectrum chemical one?

[@DoctorKlioze]

That’s a tough question. As far as efficacy, I believe both are adequate. Personally, I don’t like the idea of adding any man-made chemical to my skin surface if I can avoid it. We know some of this will be absorbed and reportedly broken down but I wouldn’t recommend daily use. Non-micronized mineral sunscreens will markedly reduce the absorption issue but they’re a little tacky and unsightly making them hard to rinse off and giving you that ghostly white look. The micronized mineral sunscreens will reduce the negative features but increase skin absorption. My recommendation would be too reduce your sun exposure with some sort of physical barrier like clothes or an umbrella when possible and sparingly use either the mineral or chemical sun screens when necessary

[@yulyabarca7304]

@@DoctorKlioze 👏👏👏 best recommendation ever! I prefer mineral sunscreen to be on the safe side but reapplying is honestly IMPOSSIBLE! Even tinted ones, you end up looking like a cake!

[@Melanie-jt6jz]

If i put on sunscreen and then after two hours i have to reapply it , the amount of sunscreen i'll apply has to be the same that i applied the first time?

[@pancake6846]

lab muffin beauty has a few videos about this. i think she has at least 5 on this topic, maybe it was this one i saw: kzbin.info/www/bejne/hHy2Zp6Dl791os0 (not sure)

[@RubenWhitter]

So which is better?

[@learnenglishwithshruti]

@@crippledlittlerat do we have to reapply sunscreen 2-3 hours when we are indoors?

[@frooty6044]

Can you please tell the products they used????

[@kiki625]

Hi Dr, first of all thank you for your great and educating video. I would like to ask on something since there are numbers of debate regarding physical(mineral) and chemical sunscreen out there. I myself prefer to use mineral sunscreen that doesn’t leave white cast.Based on your explaination, those sunscreens are using micronized zinc oxide or/and titanium dioxide because it barely leave any white cast on face.. From the ingredient list it is impossible for us to know whether it is micronized or not because the manufacturer never mention about it.Does it mean those type of sunscreens are actually don’t protect you enough from UV rays? Thanks

[@el3805]

so which sunscreen should i use? mineral sunscreens leave a white cast on my face 😕 i use the sun bum clean zinc broad spectrum spf and i like it but it not sure if it’s good

[@steff6682]

I use la roche possay mineral sun cream and it has no white cast, for me anyways

[@NUDZZZ]

Thanks Dr. Klioze

[@itslala]

Chemical sunscreens have burn my skin and give me a rash. Yay for mineral sunscreens ❤️

[@ryuzakilawlight]

so chemical or mineral? which one is better???

[@nicholasgz890]

thanks for the video but i am a bit overwhelmed. should i use zinc titanium oxide as a sunscreen or an organic one?

[@ninjaturtles12121]

i don't get it so which is better? or more effective in blocking both uva n uvb? mineral or chemical?

[@simonsaysism]

they are both effective. the only difference is which type you like better.

[@corri9934]

Amazing video thank you!!

[@FelineTomfoolery69]

Fantastic video I feel like I really learned a lot. But lets say I wear a chemical sunscreen throughout the day. Can i still wear a mineral sunscreen that contains titanium dioxide? Will that make the chemical sunscreen less effective? Thank you so much!

[@DoctorKlioze]

You should be fine. There are products out there that do contain both. I don't think the combination would reduce your sun protection. In fact, what would be interesting is whether the two together would act synergistically to significantly increase your effective SPF. In other words, would a sufficient application of a 30 SPF chemical or organic sunscreen covered by a sufficient application of a 30 SPF of mineral or barrier sunscreen still give you an SPF of 30 or would it double to 60 or maybe even higher?! If you can get a hold of a good UV-meter, may be a good science-fair project!

[@bolonese9341]

very informative, thank you

[@classicgirl4774]

which is better at blocking uva rays ..chemical or mineral sunscreens?

[@DoctorKlioze]

Chemical absorb and mineral reflect the UV rays. Both are effective if applied appropriately. Problem is most of us probably don't use enough product to attain rated SPF. Which ever product you select, apply liberally and often.

[@xq39]

I think the physical sunblock like zinc oxide is the best at blocking uva rays.

[@lyssanch3096]

@@xq39 Mineral sunscreens do not react to the sunlight and subsqeuently absorb into skin as chemical sunscreen does. Mineral sunscreens are safer for the environment and the coral reefs in the oceans as well

[@mushy470]

@@lyssanch3096 chemical sunscreens aren't actually bad f coral reefs

[@lyssanch3096]

@@mushy470 i guess it depends which ones