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


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[Doctorly]

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

[greenblack]

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

[alhypo]

Just a three step skin-care routine? I like it!

That's only 3 more steps than my current skin-care routine. 😆

[kevinaa]

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

[bri_the_esthi]

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

[Violetta-qlmg]

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🙏🏼

[laurao]

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.

[andij]

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

[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.

[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 <3 It always bums me out when doctors call it a skin disease because that severely downplays how much it affects the person who has it. I've had it since I was 5 years old (40 now), and people don't understand that it's a lot more serious than just itchy, red skin.

[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!

[berry.x]

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

[TheJohtunnBandit]

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

[abigaillowry]

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.

[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!

[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.

[nightview]

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

[charlenef.]

Thanks for your time and enthusiasm in delivering this information

[ashall]

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. 😮

[annapatton]

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