Does rosemary oil work for hair growth? The science

rosemary oil hair loss

Is rosemary oil a natural, science-backed treatment for hair growth?  According to a lot of doctors, scientists and trichologists across the internet, yes – there’s “scientific proof” that it works as well as minoxidil. But unfortunately, that isn’t true. It all seems to be a misunderstanding of a single study: Rosemary oil vs minoxidil 2% for the treatment of androgenetic …

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DMDM hydantoin and formaldehyde in haircare

Tony Youn dmdm hydantoin

DMDM hydantoin is a preservative commonly found in shampoos. It started getting a lot of attention in 2021, thanks to a number of lawsuits surrounding hair loss – so let’s talk about the science behind it and whether it’s safe. (This post is partly based off a longer video about haircare misinformation on TikTok, which also covers sulfates, silicones, testing …

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The “Everything” Serum: Olay Super Serum

olay super serum

I’ve been reviewing beauty products for more than 10 years, so not a lot of things excite me – but some things did in 2023. The Olay Super Serum was one of them! The video version of this review is here, keep scrolling for the text version…. Olay Super Serum is the best new skincare product I’ve tried in a …

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Why your hair products stop working

So you found the hair routine of your dreams and your hair is just magnificent…  But then it just stops working. What’s going on? Here’s the science behind why your products just suddenly stop working, and what can you do about it. The video is here, keep scrolling for the text version. You might need to change shampoos First off, …

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Sulfate-Free Shampoo? The Science

Sulfate free shampoo science thumbnail

Lots of people say you have to use sulfate-free shampoo to avoid damaging or stripping your hair. There also people who say you have to use shampoo with sulfates to get your hair clean. They are both wrong. I’ve been paying more attention to hair science info on the internet lately. There are a lot of completely wrong explanations, and strong …

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Fading Hair Dye With Low Damage

fade-hair-dye-bleach-video

I had purple and mauve hair for about six months, but the purple I had really sunk and it’s way in, and I couldn’t get it to the warm, peachy color that I really wanted. But I was a bit scared of just bleaching it because I had to bleach it twice the first time to get it to get …

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