Over the past two years, my post on the chemistry of micellar water with dodgy photographed scrawlings has become one of the most popular, so I thought it was high time to update it with nicer drawings and finetune the explanation of the science. This also comes in video form – check it out here! There are tons of micellar …
Over the years I’ve gotten a lot of questions from students and teachers about investigations and demonstrations related to cosmetics that could be done in class or for independent research projects, with limited equipment access. Here are some chemistry-heavy suggestions that might be helpful. Saponification, soaps, detergents Different oils used for saponification have different fatty acid profiles – how does …
I’m pretty lazy with my haircare and I’m bad at sticking to routines. But I also bleached my hair so I could play with pretty colours, which dramatically increased the effort involved to keep my hair looking decent. So in the last few years I’ve been trying out a lot of haircare hacks – these are the ones that’ve changed …
Here’s a myth I’ve been seeing around skincare communities: that you have to use a special cleanser to remove water-resistant sunscreen. For example: “Keep in mind that most of these sunscreen actives are also oil-soluble (only dissolves in oil, not water), which gives sunscreens their water-proof and sweat-proof properties. Therefore, in order to completely remove sunscreen, you have to use …
My skin is oily / combo and I complain about it quite a lot, so I often get asked for my best tips for controlling the inevitable flood of oil. I also sweat easily which apparently means I’m fit, but this adds to the oil and I end up a bigger mess. I’ve spent a long time trying to get …
Sulfates, fatty alcohols, silicones, preservatives… what are they doing in your shampoo and conditioner, and do you need to avoid them? Today’s post is a deep dive into some of the key ingredients in haircare products. The video version is here if you prefer that format! Note: This post is based on a video sponsored by The Ordinary, but this …
If you’ve ever looked up sodium laureth sulfate (SLES) and sodium lauryl sulfate (SLS) in a clean beauty app, like me, you might be surprised to find that SLES is dirtier than SLS. These apps are terrible and based on pseudoscience: SLS and SLES are both safe in your products. But if you’re a skincare nerd, you’ll know that SLS …
Heimish is a Korean skincare brand that’s best known for their cleansing balm, which has a cult following (and well deserved – more on that later). But they have a whole bunch of other great gems too! Here are my picks from their range so far. The video is sponsored by StyleKorean, but this blog post isn’t. StyleKorean currently have …