Scientist Debunks Sunscreen Myths in the News

It's sunscreen season, and as usual there are myths galore in the media. I go through Vox, NPR, USA Today and Mirror articles, and debunk the myths in them.
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🙋🏻 I'm Michelle, a chemistry PhD, cosmetic chemist and science educator, here to explain how beauty products work, debunk myths, and help you make smarter decisions about your skincare, hair and makeup!
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[@Pastadudde]

"Toenails block all of UV" wow the more you know. I appreciate my toenails more now thanks to Michelle. *wiggles toes happily*

[@LabMuffinBeautyScience]

They're pretty neat, aren't they? 😄

[@debrucey]

So the most “natural” sun protection would be a body suit made entirely of toenails… please, no one tell Gwyneth Paltrow

[@Pastadudde]

@@debrucey Goop team brainstorming be like:

[@katydid5088]

​@@debruceyTechnically I don't think covering my face IN toenails would be that bad. We already cover ourselves in snail mucin and other filtrate ect. I don't really think she'd be able to match the properties of the toenail without also making the compounds rigid. Half of the protective effect probably comes from the calcium and keratin being in an unbroken rigid sheath that doesn't get removed. Put any of those compounds in a lotion or spray and you're still combatting a film formation problem. No better than a regular sunscreen. (And it goes without saying, keratins chemical structure mimics actual sunscreen filters which we already know are safe.) Powdered artificial toenails are essentially a grab bag trend for a mineral sunscreen that doesn't exist yet because her marketing team hasn't got a hold of it.

[@bl6973]

@@debruceynail-biting is finally a productive activity!

[@AliceintheRabbitHole]

It’s pretty ironic that the reef safe study is the literary equivalent of an empty McDonald’s cup floating in the ocean

[@LabMuffinBeautyScience]

Ugh the authors also published a study where they claimed pregnant people swimming in the ocean were at risk from people showering off chemical sunscreens at beach showers and it's like... are you not embarassed

[@tinasung3814]

I don't understand why US doesn't invest some resource/research to update their sun protection products as well as the information it is publishing. Now that the rest of the world is already so far ahead in sun protection, it wouldn't even take much for US to just adapt what's already been proven to be more effective.

[@jay_p253]

I wrote a letter to my congresspeople about this. I'd hope others would as well.

[@TracyD2]

It’s because they really don’t care. I gave up and just buy from other countries.

[@lipstickzombie4981]

Vote with your money. I stopped asking my relatives to buy me sunscreen there because most of the US mainstream formulas are TRASH. From Honest Company Coppertone, Banana Boat, Sun Bum (the most atrocious one, got me red and itchy in less than five minutes), Badger and Aveeno those irritated my skin within the time those advised to stay inside to let the sunscreen set. And I have no plans wasting an allergy pill just to be able to use sunscreen.😡 And before somebody asks, no those are NOT EXPIRED.

[@moki1999]

The sunscreen situation in US and Canada is sooooo bizarre

[@tahiti1]

Because sadly in the US profits come before people and health

[@nitzeart]

"You only need to wear sunscreen if the uv raring is above 3." *Laughs and cries in Mexican* when the lower it's probably 6 in the morning and evening, and it's 8 to 11+ from March to September at peak hours 😂 Walking down the street without an umbrella and sunglasses is a terrible idea.

[@LabMuffinBeautyScience]

Hahaha it's similar in Sydney - I have chilblains but the UV index is still *just* below 3...

[@skinbycapricorn]

Yessss 🤣, in equator UV index already hits 6 - 8 in the morning.

[@denissecam1075]

mexico just became the hottest country on Earth so it's only going to get worse😂

[@llawliet5269]

The place where I stay in India is having 11 at 10 am, and it's not even peak summer now 🌞

[@tgilbs]

I actually just listened to a podcast based on the NPR article -- and I literally thought of you and your myth busting and was a bit disappointed in NPR for falling for general myths. But overall, I liked that they hit key points-- tossing old sunscreen and finding a sunscreen you'll wear is better than not wearing any because you're worried about toxins or something. This video was so well timed! Loved it! Thanks for all your work in this space!

[@LabMuffinBeautyScience]

Agree, I think these articles did hit some good points! And thank you 😊

[@vedanshiM]

When you watch a video posted 57 seconds ago, you know you're spending too much time on youtube

[@Vk-sk7nm]

Hello fellow Indian sunscreen lover 🙌

[@betzib8021]

Especially when you are impatient for the next one already

[@My-hat]

Is there a physical demo video of HOW to apply sunscreen?! I always thought you need to rub until it’s fully absorbed. Now I’ve heard over rubbing removes some of protection?!I thought you had to rub to absorb / even the layers out /make sure skin was coated?! Should I do two coats? How long to dry between each coat? I’m so confused and clueless. Thanks people! Edit. Not a video of make up over sunscreen (I’ve seen that!), just on its own on a bare face and arms!😊

[@TheEagleslover]

Hey Michelle! Thanks again for taking on all of the misinformation out there. People are already lazy and the importance of sunscreen is just too important not to do whatever it takes to protect them from themselves.

[@mariebray9831]

I only know about my own country (New Zealand), where UV indexes are available. If I'm inside most of the day and the index is less then 2 as it is in the middle of winter, (unless you are in the mountains skiing), I don't use sunscreen. I mostly use SPF 30 in spring and autumn and SPF 50 in summer.

[@LabMuffinBeautyScience]

That sounds sensible! I believe NZ aligns pretty closely with AU on sun protection (especially with the new sunscreen regs)

[@courtneyjackson4843]

I live in America and am very allergic to the L'oreal uvmune from Europe but the Supergoop unseen or beauty of Josean do not cause irritation. So even if you think 'chemical' sunscreen doesnt work it couldnt hurt to try a few .

[@LabMuffinBeautyScience]

That makes sense, I think a lot of high protection EU sunscreens tend to throw all the filters in - good for high protection but more likely to meet a filter you're allergic to 😖

[@manojipereira9169]

Maybe some journalists were trained to write articles presenting both sides of an issue (I was during my brief time at a university paper). Problem is, this doesn't work with science topics because of the expert consensus like you mentioned

[@gasparinha]

My husband was a reporter for almost 20 years, and we discuss this often: "equal time" doesn't count when some of the parties involved are using made-up "facts". Presenting both sides of an argument when one side is either fabricating information or just using bad information just makes everything worse...

[@Spikypotato.]

My relative is so into clean natural toxic free stuff, that she eats raw apricot kernels every morning..straight out of the apricot, no idea what dosage internet recommended her but she eats a couple and gives her husband a couple. I fear that is not safe 🙈 To each their own but I find this difficult when its people I love😣

[@sunmoon42]

You mean she breaks the shell and eats the nut inside? We used to do that when we were kids 😂 it's actually quite tasty kinda like almond

[@Spikypotato.]

@@sunmoon42 hehe! yes I heard it is used for special marzipan aswell😄 but that would be processed and safe amounts.. I read that it can be poisonous these kernels, however it is hard these days to know what is reliable info and what is not. I thought maybe lab muffin knows about this🧁🤓

[@LabMuffinBeautyScience]

I have no idea what the safe dose is, but it can cause cyanide poisoning... weird way to be "toxic free" 😕

[@Spikypotato.]

@@LabMuffinBeautyScience Thank you for taking the time to reply! I agree!

[@suides4810]

Maybe shes trying to get rid of the husband lol

[@debbie_LJ]

I have to be honest. I fell for the "mineral sunscreens are less irritating" myth. I couldn't find a sunscreen that didn't sting my eyes! So I tried, well, ALL of the mineral sunsceens from baby paste sunscreens to NIOD Survival 30! All stung!! Well, the ONLY ones that don't sting are the ones with all newer generation filters! NO AMERICN filters So odd, but the Scinic Enjoy Supermild Sun Essence I can use, and it's cheap! Go figure 🤷‍♀️Love your content everywhere 💗💗💗

[@LabMuffinBeautyScience]

Thank you! Eye sting is pretty weird - I've had a lot of discussions with people about what does and doesn't sting for them, and my conclusion is the filters alone can't explain it, it has to be something else (preservatives? solvents?) a lot of the time.

[@blackrosenuk]

I'm with you on the mineral sunscreens annoying my face; I've tried dozens, and I've never found one that my face liked. (I tried the Scenic, and my face didnt love that one, either, sadly.) And with American sunscreens with chemical filters, the only one I've found that my eyes like is the Milani SPF BFF primer. American sunscreens really suck on the whole. So frustrating!

[@wallycola5653]

​@LabMuffinBeautyScience is this something you think you can do a video about? Eye sting is one of the most important factors for me in choosing a sunscreen because I seem to get it bad from both organic and inorganic sunscreens. BTW the Scinic is also what I use for this reason

[@debbie_LJ]

@@LabMuffinBeautyScience Right!? It does seem it's different for everyone💗🥰

[@itsokaynatalie]

@@LabMuffinBeautyScienceThere’s also another factor to consider: the health of the ocular surface and any pre-existing dry eye conditions. For those of us with ocular rosacea, for example, our skin tends to be extra sensitive and we struggle with barrier issues on top of having a suboptimal tear film. You’re more likely to feel stinging on the ocular surface if the tear film is compromised, if inflammation is present, and if the skin along the lids and lid margins is comprised.

[@sunmoon42]

Thanks so much for putting so much effort into the videos. My husband really needs to see this because he believes a lot of these myths

[@neverneverland5836]

This video (as well as your other videos about suncream) has really helped me out! I live in Scotland, and in the UK as a whole we tend to be really lax about sun protection unless it's hot enough to be concerned about burns, and the American advice of "always be lathered in it all the time even indoors" was super overwhelming to me when I first started brushing up on proper usage. It's been 25+ degrees where I live for the past few weeks, so I've definitely had your tips in mind! Thank you!

[@eaglelensforemay7503]

Aha it's raining over here in Shropshire as I type this 😂

[@neverneverland5836]

@@eaglelensforemay7503 yeah we've started to get some torrential rain up here too in the last few days, the heat still hasn't let up though 😭

[@johanneshalberstadt3663]

A standard, solo shot glas here in Germany is 20 ml ^^. So we would get the short end of the stick, if we listened to this recommendation!^^ we need a double-shot-glas!^^ And our standard teaspoons are smaller than US ones aswell, from what I've seen. I assume dutch teaspoons might be even smaller, as many of their kitchenware is. S0, people giving non-metric measurements online nowadays should really specify the country for which these volumetric practical masures apply. And consumers should be aware or be made aware of the differences, like you are doing here! 👏

[@ameliakirahring2336]

I am very fair skinned and have worn suncreen all my life living in denmark. Bu tas of late, the skincare fearmongering has reached here, and influencers are telling kids and everyone else that will listen, that they should wear sunscreen EVERY DAY or else their skincare rutines 'might as well be useless'. Bear in mind our UV index for half of the year dosents surpass 2. pretty clever marketing. It is like its assumed the standard person lives in california...

[@Stettafire]

Yes I hate this. I see parents refusing to let their kids outside because "oh no the sun, they'll get cancer!" Then they wonder why their then teenagers don't want to go outside

[@Purple_Alien2511]

THIS. As someone who lives in Sweden, where for atleast 6 months you're covered in thick layers from head to toe, the sun sets at 3p.m at peak winter, there is almost no direct sunlight, and also yes, the UV index mostly being 0-2, it doesn't make much sense so slather on sunscreen during winter. But I too have fallen victim to online derms and influencers (mostly based in the US) who push wearing sunscreen 24x7 all days in the year.

[@karatalksaboutstuff7333]

Yep! US-based derms are giving recommendations for the WHOLE country, including Florida, Texas, Puerto Rico, Hawaii, and Guam. Plus, in this country ('Murica) medical organizations have to be very conservative with their recommendations. If they say, "this is only a problem for 0.1% of the population, we can ignore it..." that 0.1% is well over 300,000 people. Add legal issues on top of the ethical ones, and you end up with official recommendations for people in Alaska to wear sunscreen on days where the sun never rises at all.😆 So, yeah, US derms online are only going to give the official recommendations from their own medical associations, because that's the legally-protected position. I think it's the correct stance for them (especially considering you really SHOULD be wearing sunscreen everyday in many US states), but it certainly shouldn't be viewed as a universal truth.

[@karatalksaboutstuff7333]

​@@Stettafire Who's refusing to let their kids out because of the sun??? That sounds like an excuse for a parent who just wants to stay inside, honestly. Surely they're aware of sunscreen, long sleeves, hats, and umbrellas.

[@kerry8461]

I’m so glad you mentioned the NPR one, I was so disappointed

[@LabMuffinBeautyScience]

Me too! I was thinking of doing a video like this for a while but that was the trigger...

[@debpalm8667]

Thanks for your time and content, Michelle.

[@yeonji7994]

Hi!! Another Romanian viewer here and I can confirm that everyone pretty much has different types of shot glasses in their homes and the sizes really vary A LOT. But yeah, the "standard" size here is definitely 100mL.😆

[@blackrosenuk]

Such great analysis & truth! Thanks for always sharing such well-thought, well-researched science/data! I hope your channel keeps growing so that more people can hear this important info!

[@galikatan5591]

Michelle, I appreciate your content so much! Thank you for sharing so much information and knowledge with us in a way that is both in-depth and clear ❤

[@maleahlock]

As someone with SLE I am so grateful for your videos. Thank you 🎉

[@BelleStreetBoyz]

Thank you so much for this!! It's so incredibly helpful. 🙌🏻💜✨

[@mrcat1043]

I love your videos! can you do one on scalp products and scalp health?❤

[@josemmz]

5:07 when you do so much skincare content that isn’t true becomes Isntree Love your videos so much as you only bring up facts 💅

[@LabMuffinBeautyScience]

Ahahaha I can't pronounce words anymore 😅 Thank you!

[@katevonlackum1598]

Perhaps one of these media outlets would appreciate a well written rebuttal to their sunscreen myth articles?

[@LabMuffinBeautyScience]

That would be nice! 🙏

[@stuartb5510]

This video was MASSIVELY helpful to me! I'm just beginning to use sunscreen and the questions being addressed here are so poorly answered in so many places. A balanced, scientific approach is dangerously lacking in many other creator's content. Thank you!!!

[@chrystar1]

You are legend! I love that you back up what you say not just with studies, buy why your references are more accurate than theirs. I get hot pink almost immediately upon sun exposure so I sunscreen regularly. I have been hearing from friends, family and coworkers much more often lately about the hazards of sunscreen and the spewing of myths from these sources and social media. Where's the concern about that misinformation?

[@pame8872]

I have learned so much from you. Thank you for sharing your knowledge!

[@LabMuffinBeautyScience]

That's really lovely to hear, thank you!

[@nitzeart]

Michelle, I just caught this: I think most car windows have a special treatment that blocks UV. I’m not sure if it blocks all wavelengths but at least you’re a little protected. I think it blocks UVA partially but virtually all UVB. But the protection is mostly on the windshield, not the side windows. I came aware of this because I have a pair of prescription photochromic glasses and they don’t change inside cars. They do if I’m in a house with a lot of windows though. Really cool science there too 😄 This why photochromic glasses aren’t recommended if you drive, and instead go for sunglasses or polarized sunglasses. So maybe you only need sunscreen if you’re going to be in the car during hours when UV rating is high. But then you would probably already be wearing sunscreen anyway… So it changes nothing in the end 😂

[@LabMuffinBeautyScience]

Yeah only the windscreen always does, but some newer cars are starting to add it to the side windows (mostly to protect the upholstery I think haha) - there are a couple of papers where they did measurements. There's a famous truck driver photo where they show how the window side of his face is much more aged because of the UVA exposure through the window glass.

[@maleahlock]

​@LabMuffinBeautyScience I have permit for special rated tint on all of our windows . . . because SLE. As far as my experience, it doesn't come standard on any windows, car or otherwise, so I've had to add it myself.

[@JPMJPM]

So useful! Thank you!

[@briciolaa]

ahhh so excited for the new video!! hi michelle ^^

[@rosemarypec158]

Thank you so much I’ve learned so much from you please don’t stop we need you lol

[@LabMuffinBeautyScience]

Thank you! 🥰

[@beautybycolour]

Great video and very informative. Thank you.

[@user-bt3ln7pk6e]

could you do a video on good products such as sunscreens, moisturizers and cleansers for eczema ? i have uber sensitive skin and any product i put remotely near my face will flare it up. love your vids theyre amazing ❤

[@noname__7]

As a Romanian, i can assure you thay a shot glass is, in fact, 100 ml. Maybe we like shots....a bit too much😂

[@xtosssxts1032]

Yaaaay! New spf video !!

[@hippybecca]

I'm shocked people put less moisturizer on than spf. But then again I have dry skin. I absolutely use more of my moisturizer w/sunsceen than a pure sunscreen. I also don't like to use a water resistant sunscreen for everyday. To get it off really irritates my skin, so I only use it when I will sweat or swim.

[@nenyennoli8118]

Interesting! Very different from me - I actively look for water resistant sunscreens because I live in a hot, humid part of the world. Different strokes, I guess 😅

[@ruminationstation4200]

Try oil cleansing! I have very sensitive skin and jojoba oil breaks almost EVERYTHING down but doesn't leave my skin feeling stripped and irritated

[@TaoMoksha]

Very informative! Thank you😊

[@auricia201]

4:23 I always wondered why did it matter if the sunscreen absorbed or reflected, if it's not transmitting UV radiation, that's the important part. I didn't know there were "misinformation multiples" based on that. But honestly, those are really a stretch, even if chemical filters did in fact mainly absorb, those follow up myth wouldn't necessarily be true 😐

[@LabMuffinBeautyScience]

I think they're a stretch as well, but unfortunately I've seen these arguments being made in virtually every chemical vs physical sunscreen discussion 😬

[@wallycola5653]

Your videos are super meticulous and nuanced

[@amberatartimec2564]

@labmuffinbeautyscience : youre a legend. Ive just bought a spf15 moisturiser for days when im work from home and may pop to the shops. Its been massively hot here in the UK and i was trying to work out if that was enough , knowi g that spf is a legally recognised term. Yay it is, and its £2 for 50ml so i can slather it on. Superdrug Vitamin E range for those that care. Nivea shine control spf 50 for outside days. Great video as always, i definitely learnt some facts and got rid of some myths. Cheers!

[@sunmoon42]

Lab muffin do you know about face exercise, face yoga and face massage? Are they safe? Are they effective in preventing or improving wrinkles and sagging face? Some dermatologists say face exercise can increase wrinkles but the practitioners seem to have very good results. It's hard to find any evidence either way. Ps. Love all your videos ❤

[@debbie_LJ]

I'm not she, but face yoga and any facial movements CAUSE wrinkles. The doctorly docs did a video on this. And people pay good money to stop facial movements, aka botox, so it does stand to reason😉💗

[@nancykerrigan]

​@@debbie_LJinteresting! I gotta check out that video. I had a feeling these exercises are BS because how can pulling and pushing reverse gravity causing wrinkles? 😅

[@am4405]

I tried to fight it but I gave in...i subscribed. I have been watching her videos and like the amount of information she provides!!!!!

[@ambergerhelper7852]

You have the subscribe to some dermatologists too. They disagree on some things. Have to make choices on who to believe!

[@kathysharp7551]

This is great. Thanks !

[@kamloopscruiser874]

Here for anything by Lab Muffin especially debunking idiotic news

[@Cockapoo301]

Can you do a video on red light therapy? And efficacy/products/science?

[@LauralHill77]

Unfortunately I actually had to get a mineral sunscreen bc of a rash that was irritated by Skin Aqua and Isntree. Native and Pipette didn't have Butyloctyl salicylate at least!

[@louiseaf1]

Great video!

[@LabMuffinBeautyScience]

Glad you enjoyed it!

[@ramisamaliat2536]

omg i didn't know that ab the spf moisturizer, thanks!

[@LabMuffinBeautyScience]

Glad there was something new here for you! 😊

[@AlaBurque]

Thank you so much for this. As a dark skinned woman I thought I was preventing skin cancer. Mostly I wear for warding off aging, though :)

[@mehrimah5335]

Hi Michelle! I was wondering if you could please make a video about the ingredients used in facial cleansers, and if they're really low pH? I'd like to know what ingredients in cleansers result in a higher pH, as i've heard that cleansers should be low pH to help with the barrier and health of your skin, but sometimes the ingredients cleansers contain, result in a high pH which can cause issues with your skin. This would be super helpful, as I've already learnt a lot from you, and really enjoy learning about the chemistry behind skincare!

[@melodyblackhall6702]

That actually makes sense too about the chemical being changed into heat since heat is also a melasma trigger. Fascinating!

[@plutoh9958]

Wow! So early. Thank you so much for breaking down the science Michelle. That video you had about wearing sunscreen indoors really helped me to stop being so crazy about sun protection indoors😅 Thank you for all you do!❤

[@monicaclasener]

Yes, people frown upon my rigorous applying sunscreen outside, but when you tell them I also use it inside, they think I'm quite bonkers🙃

[@jay_p253]

Get em! Get em!

[@Rachaelshaw7]

Please do a demonstration, I would like to know if QV cleanser on its own can remove sunscreen properly 💗💗💗

[@samdunski6921]

Fabulous! Thx.

[@melodyblackhall6702]

The only times to opt for mineral over chemical is sensitivity/irritation/ allergy or if you're trying to treat melasma since zinc oxide helps lighten the pigment but u can always use a hybrid with zinc oxide being the higher percentage over the chemical. I couldn't figure out why my favorite biore uv watery essence wasn't helping with melasma on my forehead and my derm said I needed to switch to at least a hybrid and omg! What a difference that made!

[@GenerationJonesi]

Canadian here. I use a mineral sunscreen because it comes in a stick, which is easier for me to use. However, i had to search high and low for directions on how to use it properly. Thanks for your info. Much appreciated!

[@shaked7062]

can you do a video talking about the new UVMUNE 400?

[@liron99]

Thank you for the video and information! I myself have a very sensitive skin (I can't use many of the traditional chemical UV filters, they irritate my skin) plus I have seborrheic dermatitis, so between these two it's really hard for me to find a sunscreen that works for me... I only use La roch posay (the kids one is actually really good!) BTW, I noticed you wear lots of crochet jumpers in your videos, do you crochet them yourself? x

[@ANPK209]

It sounds like the reasons that applied makeup degrades over the course of the day are the same reasons that are the basis for the recommendation to reapply sunscreen every 2 hours. Can sunscreen be made to “last longer” (≈ protection to initial application at > 2 hours) similar to how certain techniques and products can be used to make applied makeup last longer?

[@laurens2023]

Hi Michelle, Love your work! Sorry, this question is not related to this video - I am not sure of the best way to contact you. Are you please able to do a video on pregnancy/breastfeeding and skincare/makeup? There is a lot of conflicting and unclear information out there and it can be stressful when you are trying to protect your growing baby but you also want to feel happy and confident in yourself and use products that make you feel good. Would be great to have some evidence based info. Thanks!

[@saulswollman]

hey michelle what kind of shaving creams or gels would you recommend?

[@esmeraldagamgeetook2454]

I would LOVE a video unpacking what we do know about non- white skin and the sun. It's so fascinating that black people might not get skin cancer from sun exposure. What about brown skin tones? Or light skin that is olive or yellow, but not white?

[@NavilleT]

Hi Michelle Would you be able to do some UV camera videos showing if/how much sunscreen protection gets reduced if applying makeup over it? I just feel like swiping makeup on my face on top of sunscreen is going to remove it or reduce the protection but is this just unfounded? (eg if I wait x minutes will it be just fine?) Thanks

[@xyz_user122]

Hi Michelle, new subscriber here! 💞Awesome video! So, if I understood correctly, we don’t need to wait for 15/20 minutes before going outside if we’ve applied a chemical sunscreen? Tbh this is the thing that torments me the most 😅

[@lucysky384]

I can't get past the way chemical sunscreens burn my eyes. Even with all the tricks of using a mineral sunscreen around my eyes, with reapplication, l still end up feeling like l have acid slowly seeping into my eyes. So, regardless of all the arguments, l can only comfortably use mineral sunscreen. I love coppertone pure and simple.

[@merrillsunderland8662]

Are there any reputable skincare news letters we can turn to for good info in between LMBS uploads?

[@Mira-mr8ok]

Hello! I am writing a paper about sunscreen for school and was wondering what resources you used in this video to refute these claims? I was planning on using the American Academy of Dermatology and NOAA but I’m disappointed to hear they they aren’t as reputable as they seemed. I’d really appreciate it!

[@DallasNatureLover]

I see that she hasn’t replied yet. Some of the science she shares is likely information she learned over the years getting her PhD in chemistry. So you could reference her and this video. I have watched a lot of her videos and if you do that you may find some sources she has cited

[@whsgdjkdj5075]

can you make a video about the new EU retinol regulation? (no more than 0.3% retinol in a face product) i guess that it implies that some retinol absorbes to the bloodstream which is contrary to what i have previously found in the internet. amazing video as always!

[@mystyredz]

Is expired sunscreen safe to use? Will it harm your skin?

[@user-dy5me8gi7j]

my mom has been watching "skin care" videos that teach her to taste her skin care products and claims that salty products are bad for you actually. can you explain the science behind this so my mom will stop licking all her lotions.

[@maleahlock]

😂 This comment made me giggle. My niece has been doing this too!

[@JB-bm1to]

Omg 😂😂😂

[@zq5127]

can you please make a video about this claim that's been floating around about this idea that indoor/artificial light causes UV damage and requires sunscreen usage? my intuition tells me this is largely bogus, but I'd love your thoughts. thanks!

[@createusernametia]

Can you review airyday sunscreens? 😊

[@changveronicas]

woah! learned a lot about the difference between UVA and UVB!

[@cats-dogs-animals]

Hi! Could you upload a video testing the coverage of powder sunscreen like Shiseido spf30?

[@totallynotreese]

she tried sunscreen and said the spf you get when u spread it on ur whole face is like spf 3

[@Mira-mr8ok]

Could you review the Hero Cosmetics sunscreen please?

[@thefreevolous]

One myth I haven’t seen much debunking on (and I feel spreads more word to mouth than in articles in media, but one can’t understate the power of grandma belief), is the one where if you don’t get easily sunburnt but get easily tanned instead, you hardly need sunscreen and have lower chances of getting skin cancer (I’m talking about white people, but more “Mediterranean” skin tones, which are light-medium to medium, some with olive or golden undertones, rarely burn, get easily and evenly tanned, and can get really dark without much effort - plenty of Portuguese, Spanish, Italian sort of skin tones). It then develops to (and this was so popular when I was a kid) going to the beach, apply a higher SPF in the first days, let your skin get “used to the sun” as it got darker, and then using a lower SPF or even nothing… I’d love to hear your thoughts on this. Yes, I have a personal interest in it because not only am I surrounded with people who are very resistant to using any sunscreen unless they’re going to the beach and sit in the sun the whole day (and then, they still don’t use correct amounts, of course), but I have a light-light medium skin tone which, without sunscreen and mild exposure, can easily get to a medium golden - I’m using foundation tones references, since they’re a bit more comprehensive.

[@yenhoang8011]

Will spf lip balm be effective if Vaseline is still on the lips? Should it or any other balms be removed before applying spf?

[@proudkitty4793]

Pleeease do a review on the KUMANO COSME - Reihaku Hatomugi UV Care & Moisturizing The UV Milky Gel SPF50+ PA++++. I hear so many ppl rave about it since it comes in a big bottle, but theres also a lot of ppl that say to not buy it Bcuz of its poor sun protection 😭 but others say that it has good sun protection...ugh so annoying

[@karawaller9772]

I have very sensitive skin and mineral sunscreen really dries out my skin (in the USA), like to an unbearable amount to the point it damages my skin barrier.

[@sinisterrouge_88]

Schooled! ❤

[@cryinglightning2363]

Please can you explain if the maillard reaction with fake tan speeds up skin aging? Thanks

[@hey-ey6bl]

What about skin that is a Fitzpatrick IV and is normally olive shade, but darkens deeply due to the sun? Is that type of skin safer due to the excess melanin or is it severely damaged already? Will this skin type be protected from skin cancer or even more at risk due to the skin tanning deeply? How much of a difference does sunscreen make with this skin type? Thanks your videos help a lot.

[@clone2k696]

Hello Michelle. First time watching your video here. I remember after watching your short about Australian sunscreens being the best sunscreen in the world and I was wondering what Australian sunscreen brand would you recommend? And what is a good sunscreen for tretinoin users? I've been using tretinoin for a few weeks now and I often hear that tretinoin users should be wearing mineral sunscreens since they incite less irritation and provide better protection than chemical sunscreens, but the thing is: I *hate* mineral sunscreens. They tend to have a horrible white cast on my face that makes me look like a ghost. Plus most of them are usually very thick and difficult to blend. Can I still use chemical sunscreen if I use tretinoin? Or should I switch to mineral?

[@luciaaguileramedina4528]

Mineral sunscreen for oily skin please?

[@queenbey6678]

I will say I notice I get less tanned with mineral sunscreen. I switched from chemical to mineral for my face and my face is now much lighter than my body after full days outside.

[@Brisket-tn4uk]

Hello mam , can we still keep using tyrosinase inhibitors after the hyperpigmentation has completely gone . Like can we still use to prevent that hyperpigmentation from coming back.

[@jessicafranklin6809]

Sadly with my super sensitive skin I've only found I can use the new Dr jart everysunday mineral sunscreen. Every other sunscreen stings my face.

[@neitherhotnorflashy1677]

Is it ok to layer spf products? ie, often I will put on my LRP sunscreen, then when dry add on a primer which has spf, then maybe a tinted makeup with SPF. I don't seem to burn, but was interested in the chemistry of it all.

[@nesrinechabani7806]

can u make vd about the science behind closed comedones ? retinol and SA didn’t work for me and i still get clogged pores

[@LabMuffinBeautyScience]

I personally find AHAs helpful for them - I don't think there's enough data to narrow down why it works better than SA, but might be worth a try for you!

[@hfzhmB]

Can you pls debunk about the difference between sunblock and sunscreen. I hate when i went to the beach and i brought sunscreen with me and my friends just told me i should've brought sunblock and not sunscreen

[@JelenaP991]

Did you ever try Evy sunscreens? They are from Sweden, I think, and they claim you don't have to reapply their sunscreens. I wonder what are they using that makes them so effective

[@tanhql]

She did a video on Evy sunscreens kzbin.info/www/bejne/rWW7aXmNnrtoiJo

[@LabMuffinBeautyScience]

I really like them, I've done a video about how they work and their evidence: kzbin.info/www/bejne/rWW7aXmNnrtoiJo

[@auricia201]

Was the study about black skin and sunscreen only based on population statistics, or there is also a biological explanation for why black skin seems to be "immune" to UV when it comes to development of melanoma? I'm not doubting the research, but I find it weird how melanin in black skin would be enough to completely protect them from UV rays, while at the same time increases in melanin in white and brown skin doesn't seem relevant in UV protection. If it's a matter of quantity, it would make sense for black skin to have a lower chance of skin cancer due to UV, but not zero

[@LabMuffinBeautyScience]

The increased melanin is the main part - the location of melanin is not exactly the same with tanning vs inherently darker skin, but also relevant is that DNA damage is required to maintain a tan in lighter skin, and there's possibly more efficient DNA repair / damage-clearing mechanisms as well.

[@gmc___]

24:28 in europe if your product is a moisturizer as opposed to a sunscreen there does not need to be uva protection in it

[@JPMJPM]

QUESTION: If you don’t sweat, do you really need to reapply sunscreen? And what if you’re not outside? (Two questions.)

[@LabMuffinBeautyScience]

IMO whether you reapply is more about how much sun you're about to get, than what you've been doing - my personal decision tree is here kzbin.info/www/bejne/ppLQq5mHrpejrNE e.g. if it's an office day I wouldn't bother reapplying for the train ride home but I would try to stay in the shade.

[@JPMJPM]

@@LabMuffinBeautyScience Thank you!!! 😘😘😘

[@GlitterMoonbeam]

Excellent excellent video! I just wish I could just keep this information in my rubbish brain.

[@kobinsadvance]

This type of valuable content that KZbin was actually made for.