I’ve had a lot of the questions on my DIY hand sanitiser video, and even though I tried to answer as many as I could, a lot of people kept asking the same ones… so here are the answers in an easy-to-find place! It includes a video demo of the Alcohol Calculator. Here are the…
How long do retinoids take to work?
I’ve been seeing a lot of people say that it’s impossible to see results from retinoids (vitamin A derivatives used in skincare, like retinol, tretinoin, adapalene, tazarotene) for a certain amount of time. This time varies: some people say 2 months, or 3 months, or 6 months. While it’s true that retinoids can take months…
Bad DIY Hand Sanitizers (and a few good ones) (Video)
Thanks to the COVID-19 pandemic there’s a hand sanitizer shortage… and a ton of DIY hand sanitizer recipes. Will they actually work? (Spoiler: Most of them won’t.) I’ve made a video breaking down some of the good bad DIY hand sanitizer recipes out there. Key points: COVID-19 is caused by SARS-CoV-2 (novel coronavirus 2019). One…
Behind the Scenes at Procter & Gamble’s Singapore Innovation Centre
This post is sponsored by P&G. I recently had the incredible opportunity to visit the Procter & Gamble Innovation Centre in Singapore. P&G have a longstanding dedication to science, so I was very excited to be able to go behind the scenes. And I’ve documented some of the underlying work that goes into making mass…
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