Asian Sunscreen Reviews: Glow Recipe, Skin1004, Suncut, Benton

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It’s time for Asian sunscreen reviews. Some of these I’ve been asked about a lot, so it’s kind of a relief to get these out! The video is here, keep scrolling for the text version (note: the video was sponsored by Skin1004, but this blog post isn’t.) These are all Korean and Japanese sunscreens that aren’t approved in Western countries …

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US Sunscreens Aren’t Safe in the EU? The Science

US Sunscreens Aren’t Safe in the EU?

There’s been a lot of fearmongering about chemical sunscreens. There were scary-sounding new stories – sunscreen absorbing into blood, killing coral reefs, zinc oxide being toxic, benzene in sunscreens… Related Post: Top 7 Sunscreen and SPF Myths I’ve covered most of these before, and they’re largely just the media taking things out of context and sensationalising them, partly for views, …

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High School Science Investigations Involving Cosmetics

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Over the years I’ve gotten a lot of questions from students and teachers about investigations and demonstrations related to cosmetics that could be done in class or for independent research projects, with limited equipment access. Here are some chemistry-heavy suggestions that might be helpful. Saponification, soaps, detergents Different oils used for saponification have different fatty acid profiles – how does …

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Do I Need a Special Cleanser to Remove Sunscreen?

Do I Need a Special Cleanser to Remove Sunscreen?

Here’s a myth I’ve been seeing around skincare communities: that you have to use a special cleanser to remove water-resistant sunscreen. For example: “Keep in mind that most of these sunscreen actives are also oil-soluble (only dissolves in oil, not water), which gives sunscreens their water-proof and sweat-proof properties. Therefore, in order to completely remove sunscreen, you have to use …

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SPF Boosters: Hidden chemical sunscreens in “mineral sunscreens”

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There’s a sort of industry secret with mineral sunscreens: a lot of them contain unregulated chemical sunscreens. Which isn’t always a big problem… but it also kind of is. Today we’re talking about inactive ingredients in sunscreens that aren’t really inactive. The video is here, keep scrolling for the text version…. SPF boosters It’s not that easy to make a sunscreen. It …

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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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Top Sunscreen Recommendations 2022

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It’s time for an updated sunscreen recommendations list! This is also available as a video here – the video also shows the texture and packaging of each sunscreen, but if you prefer reading the text version keep scrolling. Preamble First a bunch of disclaimers, because I do not have the self confidence to give my opinion without them. (I am …

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Korean Sunscreen Reviews: Beauty of Joseon, Isntree, Innisfree, Mary & May

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I recently review a bunch of popular Korean sunscreens for a sponsored video, because most of you are heading into summer in the northern hemisphere. Conveniently I’m heading out of summer, so I’ve actually been trying out tons of sunscreens, and there are some really nice ones in this batch – including a few you’ve probably seen hyped up a …

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