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How to Use Comedogenicity Ratings (with Video)

February 21, 2019 By Michelle 30 Comments

How to Use Comedogenicity Ratings (with Video)

You’ve probably seen a comedogenicity chart like these ones (and the one further down the page) before, rating different ingredients on their ability to cause pimples. Supposedly you check the ingredients list of your product against the comedogenicity list. If it has highly comedogenic ingredients, it will cause pimples, if it doesn’t, then it won’t. It’s…

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Filed Under: Make-Up, Science, Skincare, Tutorial Tagged With: acne, controversial ingredients, Fact-check, science, skincare, tutorial

My Emergency Routine for Treating an Irritant Breakout

March 7, 2018 By Michelle 26 Comments

My Emergency Routine for Treating an Irritant Breakout

A couple of weeks ago I had an irritant breakout reaction from testing a product, and I posted about it on Instagram. I’m still not 100% sure which product it was, but I used an anti-breakout routine that flattened my pimples in about 24 hours, and they were almost completely gone in around 3 days….

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Filed Under: Skincare, Tutorial Tagged With: acne, Cosrx, KraveBeauty, Paula's Choice, skincare, Stratia, tutorial, Ultraceuticals

The Pros and Cons of Accutane (Isotretinoin) for Acne

September 28, 2017 By Michelle 9 Comments

The Pros and Cons of Accutane (Isotretinoin) for Acne

This is a guest post from Facing Acne. In the history of acne treatments, there has never been a medication that has caused more controversy than Accutane. There is also no treatment that has ever produced such startling results. For this reason, Accutane has both its passionate defenders and its equally passionate detractors. The choice…

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Filed Under: Analysis, Guest, Science, Skincare Tagged With: acne, active ingredients, controversial ingredients, science, skincare

Video: Is My Skin Purging or Breaking Out?

May 16, 2017 By Michelle 11 Comments

Video: Is My Skin Purging or Breaking Out?

Here’s my second video. It’s based on my Purging vs Breakouts post, which I got a lot of questions on – I’m hoping that this video makes things a bit clearer if you’re trying to work out if you’re purging or breaking out from a new product! In it I cover: the science behind purging…

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Filed Under: Science, Tutorial, Video Tagged With: acne, biology, science, skincare, tutorial, 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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