Powered By Chemicals Coffee and Tea Molecule Mugs

Earlier this year I really wanted a molecule mug, but I could only really find ones with caffeine on them. But the chemistry of tea and coffee is so interesting – there’s EGCG in green tea for example, an awesome antioxidant that you’ll also find in skincare products, and there’s a bunch of scent molecules in coffee that smell nasty …

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How Does Olaplex Hair Treatment Work?

Olaplex 2 & 3: How Does Olaplex Hair Treatment Work?

What is Olaplex? Olaplex is a line of hair repair, “bond building” treatments that’s getting heaps of buzz in the hair community, especially with people who have damaged hair from excessive bleach. It’s available in a couple of forms – Olaplex can be mixed in with bleaching products to minimise damage, or it can be used as a separate treatment. Here’s …

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Surfactants Are Everywhere, aka Stop Being Terrified of Chemicals

Surfactants Are Everywhere, aka Stop Being Terrified of Chemicals

This post was originally published on the now sadly defunct awesome website The Toast in 2014. A reader suggested that I repost it on Lab Muffin… which I thought I did, but apparently that was all a fever dream. Here it is! There’s soap in your mayonnaise! As a scientist with a degree in chemistry, the surge in chemophobia over …

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Video: Why pH matters for AHAs and acids in skincare

Video: Why pH matters for AHAs and acids in skincare

I’ve been a little frustrated with what scientific concepts I can get through in words and crudely drawn illustrations on this here blog. When I teach at my day job, I do a lot of hand-waving, emphatic underlining, symbolic gesturing and smashing together of whiteboard markers, and not having the ability to show movement sometimes feels a bit like I …

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Should You Be Avoiding Parabens? The Science

Should You Be Avoiding Parabens? The Science

Much like “organic” and “all-natural”, “paraben-free” is one of those phrases you’ll see displayed prominently on increasing numbers of skincare and beauty products. What are parabens, what health effects do they have, and should you be avoiding them? Here’s the science behind the marketing. (I’ve written a much simpler rundown of parabens here, if you want a quicker overview.) What …

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Skincare Products I Hate and Do Not Recommend

Skincare Products I Hate and Do Not Recommend

I’ve done a lot of posts on skincare products I love… now, for something a bit different, here are some that I really hate and would only recommend to people I don’t like. So if I ever recommend these to you… it’s not me, it’s you. I just don’t see our relationship working out. Coffee Scrubs Coffee scrubs are made …

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All About Bee Venom and Honey in Skincare

All About Bee Venom and Honey in Skincare

Honey and bee venom have been used in folk medicine for thousands of years, but they’ve made a recent resurgence in skincare. Here’s the science behind these ingredients. Honey in Skincare Honey is formed from nectar and pollen by bees through a process of partial digestion (don’t think too hard about it if you want to enjoy honey ever again). …

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Free Acid Calculator for Exfoliants at Specific pH Levels

Free Acid Calculator for pH and Exfoliants

Since writing this post on the influence of pH on exfoliating acid skincare ingredients, I’ve had a lot of questions on how much active free acid there is in specific formulations. The calculation is a bit fiddly to do every time, so I’ve developed an easy spreadsheet to help you predict the free acid content for a product, if you …

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