The Beauty Brains

The Beauty Brains

Real scientists answer your beauty questions

Episodes

September 11, 2026 43 mins

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On today’s show we cover lots of questions including…

  1. Does Kerastase Thermique Heat Protectant work?
  2. What do you think of the Labo hair roll on serum?
  3. Do oils in body washes help with moisturization?
  4. Do derivatives of actives show good results?
  5. Is the Anua Azelaic Acid just clever marketing or is this actually a product?

Beauty News

What AI cannot sense about beauty

Links from questions

LABO products

Anu...

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On today’s show we cover lots of questions including…

  1. Does Peptonix really grow hair?
  2. What’s up with the new Skinceuticals C, E, Ferulic formulation? 
  3. Is there any science behind DHT-3 blockers to promote hair growth?
  4. Does clear gloss dp-Hue work?
  5. Can you damage hair on purpose to get body?

Relevant links

Peptonix copper-peptide product
SkinCeuticals C E Ferulic
BosleyMD BosRevive non...

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On today’s show we cover lots of questions including…

  1. Do you have to worry about BHT in cosmetics?
  2. Are hair masks worth using?
  3. Will a biomimetic hair longevity serum reduce shedding?
  4. Can you mix products together to reduce irritation?
  5. What's the deal with QOAT Professional Hair Color?

Perry and Valerie are back after their summer travels, with stories about Greece, Albania, cats, sidewalks, Texas hea...

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On today’s show we cover lots of questions including…

  1. How does Olaplex Bond Shaper Curl Rebuilding work?
  2. Are plant stem cells reducing wrinkles?
  3. What chemical in hair color damages the hair?
  4. What’s a good sunscreen to use that won’t sting eyes?
  5. Is Le Balm solid moisturizer worth the price?

Beauty News

New tool to grade cosmetic ingredients.

The future of beauty according to 5 top scientists...

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July 10, 2026 41 mins

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On today’s show we cover lots of questions including…

  • How do you know a study can be trusted?
  • Are collagen supplements for skin a myth?
  • What makes a hair conditioner condition? 
  • Is EGF worth the hype?
  • Is exfoliation just as important as SPF?

Approximate timestamps

0:00 - Intro
2:00 - Trusting Studies
12:00 - Supplements and skin
18:30 - Hair conditioner
26:30 - EGF
30:25 - Exfoliat...

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On today’s show we cover lots of questions including…

  1. Are benzoyl peroxide products dangerous?
  2. Is a UBEAUTY serum really a holy grail?
  3. What is the new sunscreen active approved by the FDA?
  4. Do you need more than 5% Niacinamide?
  5. How do keratin treatments work?

Links in questions

UBEAUTY serum 

Approximate timestamps

0:00 - Intro
1:00 - Chit chat
6:00 - Trigger warning: Nose injury story
9: 4...

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On today’s show we cover lots of questions including…

  1. What are our thoughts on Herbal Face Food brand?
  2. Can eye creams make skin sensitive to the sun?
  3. Do we have recommendations for reducing C-section scars?
  4. Have we ever looked at the brand Timeless?
  5. What do Silymarin and Aminopropyl Ascorbyl Phosphate do for skin? 

Beauty News

Science of scam?

Boomer skincare vs Millennials

Question links

Herbal fac...

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On today’s show we cover lots of questions including…

  1. Does sunscreen block skincare ingredients in makeup from working?
  2. What do you think of The Good Face Project for cosmetic formulation?
  3. Does AO2 Clear help treat acne?
  4. What would be a cheaper dupe for StriVectin Anti-Wrinkle Line BlurFector Primer?
  5. Do infrared hair tools damage hair, and do heat protectant oils actually work?

Beauty News

What happen...

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On today’s show we cover lots of questions including…

  1. Is it a good idea to put pure glycerin on skin?
  2. Can a salon professional attend a cosmetic chemist course?
  3. Why don’t all Amlactin lotions smell bad?
  4. Is there a good two in one shampoo on the market?
  5. Are there differences in ingredient quality between brands?

Beauty News

Why would dangerous chemicals be allowed in the us but banned in the EU?

R...

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On today’s show we cover lots of questions including…

  1. What’s the difference between Cetaphil and AmLactin? 
  2. How do you know if a sunscreen is delivering the SPF they claim?
  3. Are copper peptides better than retinol?
  4. How do you to stay smoother longer after shaving?
  5. Can extreme heat or cold affect the performance of a beauty product?

Beauty News

Is this really new technology?

In cosmetics hot i...

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On today’s show we cover questions including…

  1. Does NAD skincare actually have real efficacy data?
  2. Do hair masks give better results if they are left on longer?
  3. Does shampooing after depositing the color weaken or degrade it?
  4. Is glycerin drying skin at high altitudes?

Beauty News

Refillable beauty products. Innovation or a gimmick?

Approximate timestamps

0:00 - Intro
1:00 - Chit chat
8:45 - Refill...

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On today’s show we cover lots of questions including…

  1. What are our thoughts on The Hair Multiplier from Le Jardin?
  2. We’ll look at Paula’s Choice new longevity serum
  3. What’s going on with Leaked Labs?
  4. Are various hair products bad for curls?

Beauty News

Taking beauty advice from scientists. 

Valerie's quoted article.

Henkel buys olaplex

Panthenol talk

Supplier's day mentioned in the s...

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On today’s show we cover lots of questions including…

  1. What’s the scoop on rice protein for hair?
  2. Can one improve the texture of synthetic hair?
  3. Are azelaic acid and copper peptides compatible?
  4. Will Alpharet improve 60 year old hands?
  5. What are alternatives to Crown Affair’s air dry mousse?

Beauty News

Does rosemary oil help with hair growth?

Rosemary oil vs minoxidyl

What happened to Vegan br...

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On today’s show we cover lots of questions including…

  1. What is nonenal odor and how do you minimize it? 
  2. Does panthenol make a shampoo better?
  3. What’s an alternative to Matrix step one bleach amplifier?
  4. How expensive is it to test a product?
  5. How do you become a cosmetic chemist?

Beauty News

Wirecutter hired a chemist to tell if products were real or dupes.

Approximate timestamps

0:00 - Intro

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On today’s show we cover lots of questions including…

  1. Are there hydrogen peroxide free glosses for hair?
  2. Is retinaldehyde better than adapelene?
  3. What are our thoughts on cosmetics in terra cotta containers?
  4. Are oils or water better for locking in moisture to hair?
  5. How do you start your own skincare line?

Beauty Questions

Adapelene study - Clinical efficacy of adapalene (differin(®)) 0.3% gel in Chilea...

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On today’s show we cover lots of questions including…

  1. How much does it really cost to make products?
  2. Does goat milk have benefit on skin?
  3. Is the Paula’s Choice new serum amazing? 
  4. Is Glycerin bad for hair?
  5. What ingredients should you look for in a makeup primer?

Beauty News

FDA doesn’t determine safety of PFAS

Men’s skin care line.

Approximate timestamps

0:00 - Intro
1:00 - Chit...

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On today’s show we cover lots of questions including…

  1. What are your thoughts on Pantene’s Abundant and Strong system?
  2. Is The Ordinary Lash Curl Finisher safe?
  3. Do we have recommendations on barrier repair moisturizers?
  4. Are ionic hair dryers better for your hair?
  5. Is there anything unique about the Renpure Coconut Whipped Creme Leave-in Conditioner?

Beauty News

Top 10 beauty brands

Beauty Question

Be...

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On today’s show we cover questions including…

  1. When do you need heat protectors in products?
  2. What do you think of color locker products from Fanola?
  3. Should we be worried about chemicals in our laundry detergent?

Plus!  our big start of the year prediction show!

Predictions

General trend

Hot ingredient

Celebrity launch

Beauty News

What’s the secret to good skin care?  Have a lot of money

C&a...

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On today’s show we cover lots of questions including…

  1. Do low pH shampoos preserve color?
  2. Can a supplement provide you sun protection?
  3. What effects does hard water have on hair color?
  4. How significant are the health risks to taking topical tretinoin?
  5. What’s the difference between aerosol and non aerosol sprays?

Beauty News

NY SCC meeting

FDA withdraws talc rule.

New sunscreen in US

Electrokinetics co...

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On today’s show we cover lots of questions including…

  1. Can you mix sunscreens to change the tint of the product?
  2. Is California Naturals a good hair care option
  3. How do you talk to a clean beauty believer?
  4. How do you control frizz?
  5. What’s wrong with Decyl Glucoside in hair care products?

Beauty News

Opinion issued on Tea Tree oil in products

Unregulated masks are flooding the market

7 hair care launc...

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