/r/SkinCareScience

Photograph via snooOG

This subreddit aims to provide resources for achieving better skin quality through scientific research in dermatology, cosmetology, physiology, chemistry, and biology

For scientific discussion of skincare, dermatology, and cosmetics.

Sources should be from academic or scientific publications, or technical industry.

Please post your questions in the Ask SCS thread.

/r/SkinCareScience

20,514 Subscribers

2

What are these? How do I get rid of them?

1 Comment
2024/11/12
00:43 UTC

5

Sunscreen when the UV index is low?

Hi all,

I recently moved from a very hot and sunny place to the south of England. Out of habit I continued using SPF each morning, but I feel a bit ridiculous doing so when the UV index indicates low radiation. Most days the sun is not out at all, it's not dark but everything is in shade, and it is probably going to become gloomier and gloomier as the winter progresses.

I had bad hyperpigmentation and took care of that and I'm now using retinol and BHA in the evening. Would you say it's best to continue using SPF every morning or maybe I'm just blocking myself from getting vitamin D and not gaining any actual benefit?

Thank you!

4 Comments
2024/11/09
12:47 UTC

3

Skin damage

Hey is there any way to see your own skin damage using an app or something like that? Like not one that’s like this is what you’ll look like in 10 years if you don’t use sunscreen etc? Like how the add shows how sunscreen works on someone’s face using a uv light? Thank you

0 Comments
2024/10/24
23:09 UTC

2

Skincare on a Molecular Nanotechnology (MBT) Is that legit?

My SIL has this skincare and she keeps talking about on the molecular level with nanotechnology - but I can’t help to be sketched out by it. She tried to explain to me that it just uses “smaller molecules”. But my main question is, “Is Molecular Nanotechnology legit when skincare companies say that or it’s just filler?” The skincare on topic is about Atomy Skincare

2 Comments
2024/10/24
03:56 UTC

6

Are certain types of plastic safe to decant sunscreen into?

I found a nice airless pump bottle that I want to use for storing Garnier Ombrelle's Complete SPF 60. I have reached out to Ries to double check, but I believe their bottles are made out of polypropylene (PP).

The active ingredients for the sunscreen are:

  • Homosalate 7%
  • Octocrylene 7%
  • Octisalate 5%
  • Avobenzone 3%
  • Mexoryl XL 0.5%

And the inactive ingredients are:

  • aqua, propanediol, silica, caprylic/capric triglyceride, pentaerythrityl tetraethylhexanoate, styrene/acrylates copolymer, butyloctyl salicylate, dicaprylyl carbonate, methyl methacrylate crosspolymer, nylon-12, PEG-100 stearate, glyceryl stearate, perlite, cera alba, p-ansic acid, t-butyl alcohol, tocopherol, sodium stearoyl glutamate, phenoxyethanol, PEG-8 laurate, behenyl alcohol, chlorphenesin, ammonium polyacryloyldimethyl taurate, xanthan gum, disodium EDTA

I did come across this FDA study in which they tested custom sunscreen formulas for stability up to 1 year. They used PP for the storage and all of the formulations remained stable for the full duration. That leads me to believe that PP is fine for decanting sunscreen into.

Questions:

  • Is decanting sunscreen alone enough to reduce sunscreen effectiveness by more than a negligible amount?

  • Would it be safe to decant this formula into this bottle?

  • In general, are there any ingredient/material combinations to watch out for?

0 Comments
2024/10/21
05:46 UTC

2

I'm 16 with pretty clear ish skin, are these brands good for me?

I'm a 16 year old girl who loves shopping at sephora and since my birthday is coming up, i'm thinking of asking for some skincare and makeup. however, i'm not sure if any of these are okay for teens / young skin to use. i've tried looking online for reviews but they are rather mixed. would any of these be unsafe / harmful for young, generally clear skin?

  • Glow Recipe Strawberry BHA Pore Smoothing Blur Drops
  • Glow Recipe Strawberry Smooth BHA + AHA Salycilic Acid Serum (for when I get break outs)
  • Drunk Elephant bronzing drops

-The Ordinary Niacinamide Serum

  • The Ordinary Hylarounic Acid Serum
  • Sephora Sheet Masks Set
  • Glow Recipe Watermelon Glow AHA Night Treatment
  • POREfessional Pore Cleaning Mask
  • Peace Out Acne Patches
0 Comments
2024/10/21
00:13 UTC

1

Concealer can be use after PAO date or not??

Plss tell me it's Sheglam brand concealer. What should i do its PAO date is 6 months but i use a little of it daily or but sometimes i will not use It will be left a lot

1 Comment
2024/10/17
06:52 UTC

2

There are so many different kind of masks from the basic sheets masks, the gel masks from Dr. Jart, the rubber masks from Dr. Jart, DermaModeling masks from Mediheal and collagen masks from Biodance. What makes each one so different and what should I be using each for?

There are so many different kind of masks from the basic sheets masks, the gel masks from Dr. Jart, the rubber masks from Dr. Jart, DermaModeling masks from Mediheal and collagen masks from Biodance. What makes each one so different and what should I be using each for?

0 Comments
2024/10/16
15:56 UTC

2

I can't stand it anymore, I need advice

0 Comments
2024/10/14
23:19 UTC

2

Avoiding breakouts while masking.

So I'm a 35 year old woman with very sensitive skin that can dry easily. Due to a compromised immune system, I have to start making up again (basically until spring). Last winter when I had to do the same thing, I got a lot of breakouts, and I'm wanting to avoid that this year. So does anyone know of any wipes I could use periodically throughout the day to clean my skin? I don't wear makeup, so I'm not worried about needing to reapply anything. Thanks for anyone who has ideas.

3 Comments
2024/10/13
21:20 UTC

2

Eyelid Dryness

(Sorry for any mistakes, english isnt my first language) So my husband(28m) has extreme dry issues on his eyelids. I did some research and it might be eyelid eczema. There is a lot of hyperpigmentation around his eyes and texture like loose skin around his eyes and eyelids. He also has sinusitis mostly due to the humid country we live in. Because of his sinus issues, his eyes get itchy or irritable so he rubs his eyes unintentionally making it worse. We have tried, vaseline, moisturizers, graham eyelids and face eczema cream, eucerine. Its not getting better. We dont want to go to a doctor as we dont have good doctors in this country and moving is not an option. Or going abroad for medical. Is it possible to fix this without steroid creams from doctors? I would like to add that he sweats A LOT from his head and face, more than normal. This has also been an issue as his face gets too hot and he rubs his eyes or tries to wipe the sweat off with his hands. Thick moisturizers is too heavy as he sweats all the time from his head and face.

1 Comment
2024/10/12
16:29 UTC

2

Vitamin C serums that actually work?

It just seems ridiculous to me that Skinceuticals seems to have a monopoly on effective vitamin c serums.

I know I'll just go without as opposed to paying over 50 for anything skincare related.

Is there another type of vitamin c serum that performs well? Not even as well as skinceuticals, just well?

2 Comments
2024/10/12
16:18 UTC

3

Websites to check skincare routine and unwanted ingredients

Hi everyone, as I am trying to perfect my skincare routine, I have been checking out different websites/apps. I want to find a good way to avoid ingredients which may be a health hazard or which may not work well in combination. Additionally, it would be great to get some help trying to figure out if I am missing any important active ingredients for my skincare concerns. I havent been fully happy with any such site yet. What do you use? Do you have any good recommendations? Preferrably free if possible.

0 Comments
2024/10/11
13:42 UTC

2

What are scientific ways to treat dark undereye regions?

0 Comments
2024/10/10
04:56 UTC

5

I am a 28 YO Breastfeeding mom with mostly dry skin and some black circles. Create a science based simple skin care routine for me please

I am so overwhelmed by all the information online about hylauronic acid, rose water toner, green tea toner, vitamin a/c, glycolic acid acid, sunscreen, what to put and when, anything to simplify this?

4 Comments
2024/10/09
06:04 UTC

2

help with my skincare formula

Hey everyone, I made a DIY moisturizer with mango butter, Shea butter, some light oils, water, emulsifying wax and phenoxyethanol. The Shea butter smell is kind of overwhelming. Anything natural I could add in besides essential oils to mask the smell? Or maybe suggestions on the formula? It has a slightly colloid-ish like look to it at times

1 Comment
2024/10/09
15:58 UTC

2

Diy moisturizer

Hey everyone, I made a DIY moisturizer with mango butter, Shea butter, some light oils, water, emulsifying wax and phenoxyethanol. The Shea butter smell is kind of overwhelming. Any natural thing in could besides essential oils to mask the smell?

0 Comments
2024/10/07
15:49 UTC

3

ADVICE NEEDED!

I have strawberry legs and I have accepted that but also multiple ingrown hair and red spots. I can not shave my legs as when the hair starts growing back it itches so bad. I always wax my legs but this last time made me itch for days and now I have these red spots. I exfoliate in the shower but the ingrown hair are so deep in the skin's surface that nothing seems to work for me. I tried the Skin Doctos' Ingrown Go to shed the top layer of the skin and that did not help as well as I still have deep ingrown hair. Is their a specific way of exfoliation or products that I need to try?

Please any suggestions are appreciated!

https://preview.redd.it/jzk3f6w0ictd1.png?width=1179&format=png&auto=webp&s=db90a493e231fd94b1b5eb0696d686e48907249a

https://preview.redd.it/l0lqo7w0ictd1.png?width=1179&format=png&auto=webp&s=a350f197d92ef6b81156595a411f551e9b6ec510

1 Comment
2024/10/07
14:35 UTC

2

How do I fix this? Should I see a skin doctor? Razor burns.

0 Comments
2024/10/01
02:02 UTC

2

What is this and how to fix it?

1 Comment
2024/09/26
15:19 UTC

3

How do you know which ingredient you're allergic to without buying a ton of products to try? Does allergy testing work?

My GP doesn't want to do allergy testing because it is not accurate according to him.

2 Comments
2024/09/08
09:42 UTC

1

Cream formulation

Hello everyone I hope you are doing well I would like to make a moisturising cream for the face (I have a dehydrated combination skin) could someone please give me the basic formulation for a gel cream? Thank you in advance🙏🏽

2 Comments
2024/08/28
13:43 UTC

2

bump behind ear

hi everyone! i recently noticed this hard (ish) bump located behind my ear on the bone. wondering if anyone else has experienced something like this? I have a doctors appointment next month but just thought I’d check on here too!

1 Comment
2024/08/22
19:42 UTC

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