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Do We Need to Worry About Heat From Sunscreens? (with video)

January 18, 2021 By Michelle 2 Comments

Do We Need to Worry About Heat From Sunscreens? (with video)

One of the big misconceptions about sunscreens is how they work, in particular chemical and physical sunscreens. All sunscreens work mostly by absorbing UV and converting it to heat. I’ve talked about this a whole bunch of times before, and I recently did a deep dive about the mechanisms behind how chemical and physical sunscreens…

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Filed Under: Analysis, Science, Skincare, Video

How Do Sunscreens Work? The Science (with video)

January 10, 2021 By Michelle 2 Comments

How Do Sunscreens Work? The Science (with video)

I’ve had a lot of people ask me to explain the nitty gritty behind how sunscreen ingredients work. I warned everyone it would be super nerdy and really quite complicated, but a lot of people said it was fine… so here it is: the deep dive into how sunscreen ingredients work! A warning: this goes…

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Filed Under: Analysis, Science, Skincare, Video Tagged With: science, skincare, sun protection, video

Should you avoid aluminium in deodorants? The science (with video)

December 29, 2020 By Michelle 29 Comments

Should you avoid aluminium in deodorants? The science (with video)

I’ve recently been approached by several natural deodorant companies to talk about the health risks of aluminium-containing antiperspirants. As much as I’d like that sweet sweet cheque… I can’t. Because the science just isn’t there. So instead, I’m going to debunk the aluminium scaremongering. (Note to deodorant companies: There are valid reasons to switch to…

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Filed Under: Analysis, Health, Science, Skincare Tagged With: analysis, body, controversial ingredients, fragrance, health, science

Do They Work? Colorescience SPF Powder, Skinnies “Pea-Sized Amount” (with video)

December 22, 2020 By Michelle 10 Comments

Do They Work? Colorescience SPF Powder, Skinnies “Pea-Sized Amount” (with video)

I’ve had a lot of questions about certain sunscreen products with unusual claims, and what I think of them. I’ll be talking about what I personally think of the claims for 2 products in this post, but there are a lot more products that I’ll talk about later – let me know if there are…

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Filed Under: Analysis, Critical Thinking, Science, Skincare, Video Tagged With: analysis, critical thinking, skincare, sun protection, video

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Michelle
Hi! I'm Michelle, chemistry PhD and science educator, and I'm here to help you figure out which beauty products are worth buying, and which ones aren't using science!

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