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And the winner is…

May 2, 2016May 10, 2018 KindofStephen Blog

Congrats 🙂 This giveaway was for a copy of Kerry (Skin and Tonics) and Coco’s (The Beauty Wolf) book “Korean Beauty Secrets: A Practical Guide to Cutting-Edge Skincare”

Keep your eyes peeled, the next giveaway will be for Charlotte Cho’s book, The Little Book of Skin Care!

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Using a Carbon-13 NMR for quality control…
#BeautyRecap: May 3rd, 2016

Hello! I’m Stephen Alain Ko, a cosmetic and skincare formulator.

I curate a weekly update on the beauty and personal care industry, the #BeautyRecap.

I also write about beauty and science. I believe so many people are interested in science and chemistry, but just haven’t realized it yet!

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  • #BeautyRecap 181
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RSS Latest Posts

  • What is hypochlorous acid?
  • Can you mix tretinoin and benzoyl peroxide?
  • Does your skin need blue light protection from your devices?
  • pH isn’t a scale between 0 and 14: Many diagrams are just incomplete!
  • Making sense of sunscreen protection percents. Where does “SPF 30 absorbs 97% of the UV” come from?

Popular Posts

  • What's causing sunscreen to stain clothing?
  • Can you use Niacinamide and Vitamin C (Ascorbic Acid) together?
  • Adapalene 0.3% may help improve the appearance of atrophic acne scars
  • What is hypochlorous acid?
  • Sunscreen dosing. Teaspoons, shotglasses, and fingers...are we using too much?
  • Can you mix tretinoin and benzoyl peroxide?
  • Understanding Sun Protection Labels
  • "Physical" vs. "chemical" sunscreens and other sunscreen myths
  • Skin penetration of Vitamin C (Ascorbic acid): Part I
  • Skin penetration of Vitamin C (Ascorbic acid): Part II

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RSS Latest Blog Posts

  • What is hypochlorous acid?
  • Can you mix tretinoin and benzoyl peroxide?
  • Does your skin need blue light protection from your devices?
  • pH isn’t a scale between 0 and 14: Many diagrams are just incomplete!
  • Making sense of sunscreen protection percents. Where does “SPF 30 absorbs 97% of the UV” come from?
  • Shame, Ageism, and Sunscreen
  • Sunscreen dosing. Teaspoons, shotglasses, and fingers…are we using too much?
  • Skincare Optimizing and Anxiety: Unrealistic expectations of perfection from imperfect information.
  • How to recycle cosmetics through TerraCycle in the US, Canada, the UK, Australia, New Zealand, and Brasil
  • Understanding Sun Protection Labels

RSS #BeautyRecap

  • #BeautyRecap: November 5, 2019
  • #BeautyRecap: October 22nd, 2019
  • #BeautyRecap: October 8th, 2019
  • #BeautyRecap: September 4th, 2019
  • #BeautyRecap: July 23rd, 2019
  • #BeautyRecap: July 9th, 2019
  • #BeautyRecap: July 2nd, 2019
  • #BeautyRecap: June 25th, 2019
  • #BeautyRecap: June 18th, 2019
  • #BeautyRecap: May 28th, 2019

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