Korean Sunscreen Reviews: Beauty of Joseon, Isntree, Innisfree, Mary & May

Korean sunscreen thumbnail

I recently review a bunch of popular Korean sunscreens for a sponsored video, because most of you are heading into summer in the northern hemisphere. Conveniently I’m heading out of summer, so I’ve actually been trying out tons of sunscreens, and there are some really nice ones in this batch – including a few you’ve probably seen hyped up a …

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Answering (Almost) Every Sunscreen Question

sunscreen questions guide

I’ve talked a ton about sunscreen over the years, but I’ve found that on every sunscreen post I get asked questions that I’ve answered before, and I think it’s because I’ve gotten a lot of new followers (hi, welcome and thank you!). So I thought I’d do a post where I try to cover every sunscreen question that’s relevant to …

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Free Sunscreen Science E-Summit!

Sunscreen E-Summit

Here’s a special event for all the sunscreen nerds! I’ve teamed up with Jen of The Eco Well to organise the Sunscreen E-Summit, which is happening 15 May! This is a FREE event featuring some incredible speakers that you’d normally have to pay expensive conference fees to learn from, including academic researchers, ingredient supplier representatives, sunscreen formulators and regulatory experts. …

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Cheap Australian SPF Reviews: Coles, Woolworths, Aldi

Coles Woolworths sunscreen review

A lot of my favourite sunscreens aren’t the most budget-friendly. Unfortunately sunscreen testing and development is pretty expensive, and if you want to formulate an SPF product that’s really pleasant to use as well as being effective, it can be a long expensive process of trial and error. Enter: economy of scale. We have two major supermarkets in Australia: Coles …

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Do zinc sunscreens stop working and go toxic after 2 hours?

Chemical vs Physical Sunscreens: The Science (with video)

There’s a new paper on zinc oxide sunscreens not working and becoming toxic after 2 hours of UV exposure. A lot of people have sent me this paper, so here’s my analysis of it. In short, the researchers found that sunscreen ingredients broke down when mixed with zinc oxide and exposed to UV light, and the degraded mixtures had lower …

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Do Hats and Umbrellas Protect Well From the Sun?


Instead of talking about sunscreen like I usually do, we’re going to dive into some of the things you can use to protect your skin apart from sunscreen (I can feel my sunscreen propaganda shillbucks slipping away right now). As much as we all love sunscreens, they are a bit of a pain in the butt. You have to apply them right, …

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My Favourite Sunscreens: 2021 Update

sunscreen connoisseur

As a sunscreen connoisseur who tries out a lot of sunscreens, it always feel premature to make a list of my favourites. I try a lot of sunscreens but I feel like I can never get through as many as I’d like, because unfortunately I have just the one face. I did a list of my favourites at the end …

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How much UV does a REAL mineral sunscreen absorb and scatter?

sunscreen center mount

Warning: Very nerdy content ahead! If you’ve been following sunscreen discourse (apparently this is a thing now) you’ll know that mineral sunscreens mostly work by absorbing UV and only scattering a small amount, in the region of 4-5% across the range of UV. This was quantified in a pretty commonly cited 2016 paper by Curtis Cole, Thomas Shyr and Hao Ou-Yang, “Metal …

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