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Tag: sun

Does sun protecting make-up really work?

June 24, 2016May 10, 2018 KindofStephen

Does sun protecting make-up really work?

It’s the Daily Mail, but the message is sound. Unless you’re applying your makeup thick enough (2 milligrams per square centimeter) – you’re not getting the protection on the label!

Is There a Difference between Moisturizers with SPF and Sunscreens?

January 29, 2015May 10, 2018 KindofStephen

Is There a Difference between Moisturizers with SPF and Sunscreens?

There isn’t! As long as you’re applying the proper amount, 2 mg/cm², you’ll get the SPF on the label. 

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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RSS Latest Blog Posts

  • 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
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