The Science of Hair Products: Shampoo and Conditioner

Sulfates, fatty alcohols, silicones, preservatives… what are they doing in your shampoo and conditioner, and do you need to avoid them? Today’s post is a deep dive into some of the key ingredients in haircare products. The video version is here if you prefer that format! Note: This post is based on a video sponsored by The Ordinary, but this …

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Nail Polish, Miscarriages, Cancer? Not So Pretty Episode 2

Not So Pretty 2 cover

Not So Pretty is a HBO documentary series about supposedly dangerous beauty products. It’s a very persuasive, slick-looking documentary. A lot of people chucked out their products after watching it, and as someone who breaks open bottles to use the last three drops at the bottom, this cut me deep. As a scientist who uses a lot of beauty products …

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Talc and Asbestos in Makeup: Not So Pretty Episode 1

Not So Pretty

HBO has a new 4 part documentary Not So Pretty which talks about supposedly dangerous beauty products. This kind of documentary comes out every 6 months or so, and everyone panics and throws out their products. Like pretty much everyone I think, I’m concerned about my health, but not so into people trying to exploit this concern for attention, or …

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Vitamin C Esters: Are ATIP and THDA the Same Thing?

THDA ATIP structures

Vitamin C is an amazing skincare active, but ascorbic acid can be annoying in products. That’s why vitamin C derivatives were developed – these are slightly altered versions of ascorbic acid that can get around these issues (irritation, instability, stained fingers, fake tan smell). Two of the INCI names for derivatives that you might’ve seen on ingredient lists are ascorbyl …

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Matter of Fact Vitamin C and Bad Science Review

Matter of Fact thumbnail

You might’ve seen Matter of Fact skincare all over social media lately. Their star product is a vitamin C serum, and they’ve been doing a lot of sponsorships with influencers, particularly the ones that come across as “sciencey” (with a science background and/or make scientific skincare content). You might’ve been surprised to see me in one of their influencer ads …

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Good Molecules’ “Nothing to Hide” Ingredient Lists: A Critique

good molecules thumbnail

Good Molecules is a brand with a pretty unique marketing strategy – they show their ingredient lists with the percentages of all the ingredients, saying they have “nothing to hide”.  They claim this is a “new level of transparency”, and that they hope that others in the industry will do the same… but is that really transparent?  The YouTube video …

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Food, Diet and Acne: The Science

diet acne infographics

You’ve probably seen hundreds of these sorts of videos and infographics giving you lists of foods to stop eating to cure your acne. Is there any truth to this? Are all these foods actually giving us acne? Here’s a deep dive into the science behind food and acne. A quick warning: I’ve had a lot of requests for this topic, …

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