Dermatologist Answers More Skin Questions From Twitter | Tech Support | WIRED

Dermatologist Dr. Muneeb Shah returns to answer more of the internet's burning questions about skin and dermatology. Can the skin develop a dependency on chapstick? What causes dry skin? What lives on the skin's microbiome? If we shed skin cells everyday, why don't tattoos fade away?
Director: Justin Wolfson
Director of Photography: Charlie Jordan
Editor: Richard Trammell
Expert: Dr. Muneeb Shah
Line Producer: Joseph Buscemi
Associate Producer: Brandon White
Production Manager: D. Eric Martinez
Production Coordinator: Fernando Davila
Talent Booker: Mica Medoff, Paige Garbarini
Camera Operator: Christopher Eustache
Gaffer: Rebecca Van Der Meulen
Sound Mixer: Lily Van Leeuwen
Production Assistant: Caleb Clark
Post Production Supervisor: Alexa Deutsch; Christian Olguin
Post Production Coordinator: Ian Bryant; Scout Alter
Supervising Editor: Doug Larsen
Additional Editor: Paul Tael
Assistant Editor: Fynn Lithgow
00:00 Skin Support Pt. 2
00:11 Layers of Skin
00:43 Chapstick Addiction
01:26 Dry Skin Causes
02:30 Vitamin D
03:05 Ingrown Hairs
04:07 Sweat
05:09 Microbiome
05:49 Major Organ
06:15 Retinol
06:53 Wrinkles
07:39 Tattoos
08:14 LED Masks
09:06 Skincare Marketing
09:43 Freckles
10:33 Hair Growth
10:55 Stretch Marks
11:20 Blushing
11:42 Psoriasis
12:10 Routine Steps
12:43 SPF White Cast
13:45 Serums, Creams, Lotions
14:15 Blackheads
15:02 Fingerprints
15:47 Weathering
Still haven’t subscribed to WIRED on KZbin? ►► wrd.cm/15fP7B7
Listen to the Get WIRED podcast ►► link.chtbl.com/wired-ytc-desc
Want more WIRED? Get the magazine ►► subscribe.wired.com/subscribe...
Follow WIRED:
Instagram ►► / wired
Twitter ►► / wired
Facebook ►► / wired
Tik Tok ►► / wired
Get more incredible stories on science and tech with our daily newsletter: wrd.cm/DailyYT
Also, check out the free WIRED channel on Roku, Apple TV, Amazon Fire TV, and Android TV.
ABOUT WIRED
WIRED is where tomorrow is realized. Through thought-provoking stories and videos, WIRED explores the future of business, innovation, and culture.

[@Doctorly]

The questions that come in just keep getting better! Honored to be part of this series again - Dr. Shah

[@Docmain3]

How do I rid heat rash for good or am I cursed to burn every time I play disc golf and hacky sac?

[@obaz91]

thank you for giving real answers about medical grade prescriptions!

[@Potencyfunction]

Yes it is true, when one have HCV can be treated with Seroquel according to medicine boarding in Denamark.@@obaz91

[@Potencyfunction]

If you are cursed with rush than you shall stay online and chat with your local dermatologist about a prescrprtion regarding rush. Than you will have a online recipe but you still need to go at farmacy and pay for medicine because is not free unless the online local demnts association does not donate you to you for free@@Docmain3

[@davidfletcher4449]

Good job Dr. Shah! You rep the youtube Dermatologists well!!!

[@alhypo]

Just a three step skin-care routine? I like it! That's only 3 more steps than my current skin-care routine. 😆

[@annapatton4544]

as one comedian joked - men would rather vacuum their skin off the carpet than put a lotion on it.

[@valak9574]

This is a joke you would find on Facebook with a minion next to it

[@kevinaa1622]

I feel personally attacked as I just got out of a hot shower and am now in fact all dry

[@AmandaTheStampede]

I just got out of the shower and was moisturizing while my cat was watching me. I explained to her that since I stripped my skin of its natural oils I’m now replacing so,e so my skin won’t over-compensate for it later. And then I saw this video :p

[@burnin8able]

Ya know, they did actually discover the number one leading cause of dry skin: Towels.

[@elleeffat3193]

If this is a joke then that's funny, if not I need to know more lol@@burnin8able

[@venusiangoddess8262]

bruhhhh! Not today... lol @@burnin8able

[@gabbonoo]

@@burnin8able maybe you are making a joke... anyways, i dont dry off after a shower. still turn into jerky. i think it's more shampoo than hot water since my nose dries out and i dont leave it under hot water for long

[@greenblack539]

8:10 interestingly, this is how laser tattoo removal works. the laser targets the ink deposits and breaks them down into smaller chunks so that your body’s white blood cells can effectively metabolize them and flush them out of the body. its why people report being tired after a removal session, your body is reacting to the ink the same way it would an infection

[@stellarae8257]

that's cool! thanks for sharing :)

[@KarenLum]

Have you ever bumped into your doctor somewhere unexpected? This is that moment. Congrats @Doctorly!!

[@misslaurynhill]

i NEED to know where you are located - i need him as my dermatologist!

[@nlloydlister]

Try bumping into your psychologist at a bar's dance floor. I ran the other way 😂

[@boy638]

His knowledge is more than skin deep.

[@Potencyfunction]

Oh really ? We couldn´t guess that he had a entire medicine university study! I was thinking only at the surface how to make laser with CO2 so the skin tighten up and resurface by stimulating cell growth. 😄It is at the mind of a 5 years old to stay in a stagnation cell growth. Move at the university level.

[@hoo8072]

​@@Potencyfunction?????????

[@Potencyfunction]

If you never meet me in person do not pronounce my name. What is it you wonder about it ? You can not read English well or what is your question signs about? It is enough to have a single question sign, gramatically speaking @@hoo8072

[@jonathanfoster4202]

Is “skin deep” something people say?

[@lorena.e]

@@jonathanfoster4202yes, it means surface level/superficial lol

[@Violetta-ql8mg]

You COULD NOT have chosen a better spokesperson for this! Gosh when I saw the thumbnail my eyes lit up like me 6 years old seeing the presents on christmas morning. Literally. I’m SO proud of you Dr. Shah🙏🏼

[@bri_the_esthi399]

I love this series and the doctor. He's so easy to understand, makes it seem simple

[@daracella]

He’s on TikTok and also has a KZbin with another derm. Their channel is called Doctorly!

[@AprilTheRockStar]

Thank you so much for addressing the other effects of psoriasis beyond the appearance of it *and* for not calling it a skin disease

[@JarrodFrates]

Fun fact on fingerprints: We dont actually know if fingerprints are unique. They *seem* to be unique, but no one has done a large enough analysis to be scientifically certain in part because the analysis has been extremely expensive. There are some studies proposed or going on to have AI review very large sets (millions or even tens of millions) to try to quantify the uniqueness, but it will be a while before even those are complete, and there may still be questions until we can review hundreds of millions of fingerprints in a single study. That raises privacy and data control concerns, though, and it may be difficult or even impossible to collect enough data to do that.

[@maiaaniceto5747]

I wonder the same about snowflakes often.

[@BenjamintheTortoise]

Well done. But we need at least 3 more skin support episodes!! Come back for more! 😊 So many topics... Sunburns, hormones, hair loss, allergic reactions, nail fungus (yuck).... But still! We need all the things!

[@annapatton4544]

check his channel Doctorly

[@andij605]

08:50 I love a doctor who is open to read up on new things

[@madilynpendergrass5180]

dont talk about my cotton candy chapstick shes mine and im hers

[@TheJohtunnBandit]

Probably shouldn't surprise me, but wow he's got nice skin!

[@possiblyarealcat]

Ladies AND GENTLEMEN (yes, both) I highly recommend getting satin/silk bedsheets/pillowcases. They hold less bacteria and more gentle on skin. This will help prevent frizzy hair and breakage as well as preventing acne too! Still want to change out your sheets as often as you can!

[@laurao3274]

Regarding the skin's microbiome... I read in a baby book that one of the advantages to breastfeeding is that your baby is constantly touching your bare skin. Contact with your skin's microbiome helps her to build up her microbiome and immune system. So if you can't breastfeed, make sure your baby gets plenty of contact with your skin.

[@Storm411z]

Where’s his partner in crime Dr. Maxfield? We demand the duo!!

[@berry.x9388]

he's very good at explaining stuff at an easy to understand level. love this doctor!

[@peoplearepeople4998]

the one about blushing and helping us survive: My theory (I am a random heath enthusiast with no medical background, just a random guy) is that when you're blushing, it's usually because of an intense emotional reaction which your body interperets as "potential threat" and may need to run and get outta there, so it increases your blood flow rapidly

[@jairz9232]

Wow so much information!! 😮 thank you Doc! We really need this I love every part of it!

[@jadehamelin9825]

This was so well explained ! Thanks for the info 🤗

[@obaz91]

please do these videos more often 😭♥️

[@markdevlin8471]

Mites on my skin... thanks for that, now won't be able to sleep as I'm imaging the little sods having a party.. 😢 got itchy bug feeling now 😅

[@possiblyarealcat]

Don't even bother googling a close up of the mites. You will never sleep again.

[@MadTrump]

lol

[@orcjoefitnessnut]

This was really informative and he explained them really well!

[@scurry2175]

It's really hard to get used to seeing Prince talking about dermatology issues other than playing music

[@charlenef.9055]

Thanks for your time and enthusiasm in delivering this information

[@possiblyarealcat]

I was about to comment how he seems to genuinely enjoy helping everyone get better skin 😂❤

[@nightview93]

me watching this while applying scented lip balm: i think he's onto something here

[@bobbybecker80]

Very interesting and informative, thank you.

[@abigaillowry3354]

My BIL insisted that chapstick was a scam and that it's designed to provide temporary relief but later flake your lips so you apply it more. I asked him to tell me in more detail what it feels like and what it does, he proceeded to describe exactly what it's like to be allergic to your chapstick.

[@SAmaryllis]

Appreciated the explanation on blackheads!

[@annapatton4544]

That feeling when you don't miss a single video on Doctorly channel and know all those answers 😎

[@Jackiedevice]

I can watch him do this all day 😍

[@ArnoldsKtm]

he looks like a dermatologist

[@theavengers.]

Another educational video love it

[@Potencyfunction]

It is indead educational.

[@cherisenunez2530]

Wow I love how Dr Shah dodged that multi step routine question 😅😅

[@sunny.g5070]

avoid lip balms all together, Lip balms containing ingredients like phenol, menthol and salicylic acid actually make your lips drier.

[@singingfan]

Instead, make sure you’re drinking plenty of water so as to not be dehydrated. Also, if needed you can use Vaseline to protect against sunburn or windburn etc in very cold temperatures.

[@Baseds__Backup_Account_3]

He needs his own reality TV show tbh, if he doesn't already.

[@MeghanF93]

Him and another dermatologist have a KZbin channel called Doctorly!

[@MSWMW]

This guy has absolutely no crow's feet...I am both impressed and unnerved

[@Haleigh_Tortilla]

He uses botox! Don't be discouraged lol

[@Methequeen]

Wow never thought of the hot water vs body oil

[@laurencsikistvan6630]

Another fun fact about hair: Almost everyone has around the same amount of hair and humans also have almost the same amount of hair follicles as other primates. It's just that "hairless" people have very fine, peach-fuzz-like hair, while "hairier" people (and other primates) develop that same fine hair into coarser, darker, and longer body hair due to their follicles being more sensitive to specific hormones (mostly androgen).

[@JarrodFrates]

Recent research suggests that tattoo ink particles are taken up by dermal macrophages, but these macrophages are stationary so the ink doesn't move. This isolates the ink particles and reduces irritation. When the macrophages die, the ink particles are released and then recaptured by other dermal macrophages. This cycle continues on for as long as the skin is alive. Some of the ink particles are broken down over time, accounting for tattoos lightening somewhat as the skin ages, but for the most part, it stays in place. See Baranska, et al., in 2018 in the Journal of Experimental Medicine.

[@1bootliz]

As a random youtube commenter, I just wanted to thank you for citing your source!

[@luz9742]

I LOVE DRR SHAH!! I wonder if he let them powder him this time…

[@flavioxy]

i think that blushing is part of a flight response, where blood circulation to the muscles is increased, maybe it's a side effect of that

[@giananina]

i do agree with lipbalm. When I used lipbalm with flavor, I dont realised I licked my lips again and again. I re-applied more often but still get dry lips. I thought the ingredients of flavor made my lips dry, then I tried vaseline. Viola, it worked well!

[@HenryCalderonJr]

Learned a few things that I was not aware of thank you

[@hanaandnutrition]

Wow, you’re glowing!!! ❤❤❤❤

[@ashlyn5673]

The tattoo one is so mind blowing to me. I watched an entirely other video on this before and it’s our immune system that goes in to grab on to the ink and holds it in place. The cells or whatever that go in to hold on to it though eventually die, other cells have to rush in to grab it again, and that’s why tattoos gets blurry over time. 😮

[@Morbatx]

His skin looks healthy, so I trust his advice. Gotta practice what you preach!

[@CaraTee88]

Appreciate you Dr Shah ❤

[@amitgottstein9785]

Great information 👍

[@Potencyfunction]

Delayed due the network capacity the video has no good capabilietis online streaming.

[@shawnbowen6833]

I feel like theres something in chapstick that works well but also dries your lips back out. I NEVER used chapstick until my first winter when i was stationed in upstate NY. That winter my lips got so dry i started using chapstick. And now to this day 20 years later i carry a stick with me every single day. Cannot go a day without it. And ive tried them all, flavored or not.

[@treasurechest123]

Me too…I commented similarly…folks who are not physically addicted to lip balm misunderstand and make assumptions. His response wasn’t wrong but not complete!

[@feliciasjoberg9886]

4:15 Am I the only one who thought of when Al Murray on Taskmaster argued that sweat = urine? 😅

[@daleecamp4315]

For the question about the sunscreen, we've starting using the Black Girl Sunscreen brand for my grandkids. We love it.

[@12thDecember]

Great questions, great content. Now I'm off to Amazon to buy a retinol cream and creepy LED mask. 😄

[@Angel-nl2gz]

Seeing you here for me feels so much better than seeing you on tiktok

[@cecille5833]

I LOVE THAT WE'RE CALLING IT TWITTER AND NOT WHAT EVER MUSTY MUSK CAME UP WITH

[@ADogWithGlasses00]

Super informative! *applies lotion every 5 minutes to keep my skin hydrated*

[@JuliaSomova]

In all of my 20s I had dry patches on my skin and they never went even though I tried all the moisturisers available. They went away when I stopped drinking alcohol for good. Duh 😅

[@dawnwyatt2096]

You can absolutely be addicted to lip balm, physically, and not just in a cycle of using it making you need it. I had Jaw surgery as a teenager that required me to have my jaw wired shut for six weeks. That meant that I couldn’t lick my lips at all, and I started to use Carmex. I didn’t really use lip balm of any sort much before that, but after those six weeks, I tried to stop using the Carmex, and my lips were in physical pain when it wore off. My guess is I got addicted to either the menthol or camphor in it. Over the years, I’ve pared down, and while I still use Carmex, I can go much longer between applications (a couple of hours even, sometimes), and my lips just feel dry when it wears off, not painful. Plus side is I haven’t had chapped lips in 25 years…

[@shannonm8512]

That would go along with what he said about ingredients like menthol, fragrance etc causing irritation and then creating that cycle of needing to reapply. I am pretty sure Carmex in particular also contains salicylic acid so it’s not just causing irritation with the menthol but the exfoliant could be contributing as well. You could try switching to plain Vaseline, that should help eliminate the irritation and break the cycle of dryness when it wears off.

[@andij605]

Or switch to something like shea butter or cacao butter or even olive oil or literally anything else...

[@shannonrobinson262]

I have psoriatic rheumatoid arthritis. I’m on otzela. It’s doing well to control the plaques. I use soaps rather than detergents due to sensitive skin and sls allergy. The oils on my skin feels more waxy now I have psoriasis. How can I get rid of it or adequately clean my skin?

[@julieveras2839]

I live in Oslo, Norway. during winter, it's cold, few hours of daylight and the UV-meter is always at 0. Should I still be using sunscreen during this period? And if so, why?

[@thatsydvicious]

Good question! I'm in Canada and winter is similar here 👀

[@palalabu]

hm i'm not sure if you're actually use a tool to measure that, but personally usually, i only ask google the uv index at that moment where i'm at. and for uv index it only measures the risk of getting sunburn, so i assume it only takes into account the UV-B. But not the UV-A, which causes aging. And iirc, UV-A is harder to measure anyway. that said, if the uv index is in green, i don't put on sunscreen either. so i guess you're the one who could judge it yourself.

[@aspannas]

I’m Swedish so I’m in the same boat and I don’t use sunscreen right now during winter. I think it’s just a waste of product and money to use it now when there’s such a small chance of even being exposed to sunlight

[@LeastTresCharLargo]

That dishwashing metaphor was brilliant. It nicely explains why cold showers are apparently shown to boost ones immunity.

[@no8652]

Genuinely love that this guy looks like a yassified Jonathan Frakes

[@codename495]

Never getting that image out of my head.

[@zvezdoblyat]

I just googled him. Hilarious, he really does 😂

[@cheryl-lynnmehring8606]

Thank you, doctor, for answering these questions! So many of them, I, too, have wondered about. The blackhead question, tattoo not wearing off, stretch marks, and those face LED masks.

[@samanthaxxxxx]

i don’t know if anyone will read this but i use to be addicted to lip balm for so many years. i would always need to reapply it. one day i switched to using rimmel clear lip gloss and the difference is night and day. i don’t need to reapply all the time and my lips are never dry. once in a while i will use a lip balm if i don’t have my rlg and ten minutes later my lips are chapped. it really is amazing and i have been using it for years! i always order more when it gets low and i’m not even the kind of girl who would use lip gloss. if you have this issue with lip balm please try this!

[@JanaSiratranont]

Which lip gloss is that, is that the Stay Glossy one?

[@samanthaxxxxx]

@@JanaSiratranont yes the stay glossy one! it’s the clear one named “seduce me” (:

[@JanaSiratranont]

@@samanthaxxxxx thank you!❤️

[@SomeRandomScorpio-oq8jv]

The way I never really cared for scented or flavored chapstick ✨✨✨✨✨✨✨✨✨✨

[@byuftbl]

1:27 I actually don’t have that experience with chapstick. For me, I only really need chapstick if I talk a lot to someone, or exercise and breathe heavy. Because I’m breathing more through my mouth and dries out my lips

[@jennj]

Oh shoot. My worlds have collided.

[@kanchan4298]

Please reply can we use carrot oil on body

[@MichelleDespres]

I'm absolutely a lifetime Chap Stick addict

[@DeLunaInBloom]

i wouldve asked if we really need 5-15min of sunlight w/o sunscreen to get that vitamin d? and do we all need it or just elders need it? i need to know cause im very sensitive to the sun and cant be w/o sunscreen for one minute help!

[@thehomeschoolinglibrarian]

We all need it. Babies are often given vitamin d drops to help prevent vitamin d deficiency and adults need it too.

[@mdml0]

No. Sunscreen isn't a perfect shield even at spf 100. You will still get vitamin d with the small amount that passes through. Most sunscreen users don't apply enough and regularly throughout the day anyway.

[@erinrenman1479]

Why does this doctor look like a prettier Nick Kroll?

[@shelbychng9129]

I think I can taste sunscreen through my skin! About an hour after applying I swear I can taste it! Any recommendations for flavourless sunscreen?

[@ebmage8793]

I wonder if the smell is also playing a part in this. Maybe if you can find something with a neutral scent

[@shelbychng9129]

@@ebmage8793 I’ve tried the scentless ones too. It’s almost like it’s a metallic taste.

[@andij605]

​@@shelbychng9129 Are they zinc based? While I had a copper IUD, I couldn't wear my zinc-based sunscreens, cause everything suddenly started to taste and smell like copper😭 If it's not zinc-based then Idk. I stopped using zinc-heavy ones then

[@treasurechest123]

So interesting and a great point as to why we need to be so careful about what we apply to our skin…we absorb it! Good luck with that. My challenge is how incredibly toxic I find all the Chemical sunscreens. Just being near someone with chemical sunscreens gives me a massive headache. So toxic.

[@hotsaucexo]

“i dont wanna freak anyone out” and then says the most horrifying thing i can imagine

[@jasmineluedi7265]

Why is it that blackheads seem to increase in frequency when you start getting them out??? I never had a big problem on my forehead until I took out the few I had.

[@allybird1440]

I have dry, sensitive skin and a history of eczema. Back in the early 80s my grandma gave me a small bottle of glycerin to add to my lotion and vaseline. A quarter-size dollop of glycerin in vaseline every day and after bathing will make a world of difference. I would slather my shins in corhuskers and Crisco because my skin would scale like a fish. The skin is an organ and when it is dry, itchy, scaly and painful it makes you feel bad all over. And it's embarrassing, especially when you're a teen.

[@sesshylover17]

But I love Mint Lip balm!!

[@necrogenesis1981]

I lick my lips regardless of whether it’s flavored or not because the greasy feeling is annoying, but I have no alternative.

[@ulissesmm]

Alrighty then!

[@AngelaRamirez-dd4hd]

Love Skin support so much I put up with apple commercials...

[@YourMsRightHere]

DO NOT TAKE AWAY MY HOT SHOWERS

[@yumihs2]

People truly going over the board with these skincare steps, I bet the skin can't even absorb that much product in 8 step routines

[@ENachtigal]

I love him

[@carolea1629]

❤❤❤ *I NEVER KNEW I’D BECOME A FAN OF ADAM LAMBERT ONE DAY*

[@muticere]

That revelation about chapstick is kind of a big deal for me. I loved chapstick as a kid, but I noticed that the more consistently I used it, the worse my lips would feel, and I’d have to apply it more and more. Eventually I stopped using it altogether because I decided it just wasn’t for me. Now that you explain it to me as an adult, I wonder if because I was probably given flavored chapstick, that was encouraging me to lick it and apply it more often due to the flavor and sensation. Makes me want to finally try chapstick again so many years later.

[@chithiravelbsc6863]

I have oil skin so how many minutes after i should wash my body with soap?

[@user-wh2yf5nd2c]

I like that dermatologists have flawless skin, while plastic surgeons stick to their imperfect face features :)

[@bs5817]

watching this while playing with my face ohhh noooooooo

[@Inferiis]

I'm no expert but I'd say blushing in general is kind of a fight or flight response, like stress-sweating

[@woutervanr]

That last answer will change, depending on where you are and climate change. Summers will become dryer and winter wetter where I am.

[@usmc1379]

10 steps!? Take it easy there, Patrick Bateman...

[@GameplayTubeYT]

Dr. Gary Linkov next Content

[@kerrin6633]

Interesting. Some additional questions: For wrinkles, pregnant or ppl losing weight don't get any wrinkles bc the body senses the new weight and grows around it accordingly. So I guess wrinkles might be when the skin organ's set size and shape reduces so that the skin doesn't adapt to its smaller size as we age, since we lose muscle and collagen...but I still don't understand how that can be. Since the skin already adapts to different sizes. I guess I answered my own question. That we need retinol to encourage new skin cell growth to the new aged body shape that we have. 😢 Confirmation? Thoughts? So my question would be, why do we not get wrinkles when we lose weight and yet when we age we do get wrinkles and need chemicals to fix our skin around our body? Why can't the body adapt? Another question: I was told by my physiotherapist that female and male skin have different thicknesses in our epidermis layer. I'd love the in-depth statistic on this and a diagram of how that is. The video does share the face having different number (4) layers as opposed to hands and thicker wear areas of our body (5 layers). I would love to know the distribution of layers and an explanation of why that is. 😊 This video is fascinating!

[@kyokisaru]

I'll never give up warm/hot-ish showers. lol

[@laibasayyed9627]

Good video.

[@dragonbeast109]

nooooooooooo, not my lip balm!! D:

[@roseusnay2909]

but i love my showers steaming hot 😭

[@aspannas]

Just make sure to moisturize the skin after

[@chiefd9111]

This was the first time I was amused by someone calling me a raisin

[@NoNames-vw3bq]

Saw it was Dr Shah, so I clicked. No other reason. I think this only came up in my feed BECAUSE it was Dr Shah 😂

[@WeatherManToBe]

RE: white cast for POC If you use mineral sunscreen, apply the actually required amount that everything thinks is way too much, let it dry for the required 15-20mins, then dust off excess. The white will literally disappear and you won't even know you ever used sunscreen, unless you sweat it out later. (Yes you will look like a scary ghost doing white face for 15mins, but I promise, you just gently dust it off after it drys down and you get all the protection with no white cast)

[@mdml0]

Not advisable. The protective sunscreen filters are the white cast because they never dissolve in the solvent. Dusting it off reduces the spf. If the sunscreen is flaky or is making you leave a dust trail minutes after application, it could either be expired or poor quality. Keep in mind majority of sunscreen user don't apply enough sunscreen. Either go for tinted sunscreen if mineral sunscreen is preferred but want to avoid the white cast.