You’ve probably heard that you need 1/4 teaspoon of sunscreen to cover your face. This quantity is calculated from an estimate of people’s face sizes, and the amount of sunscreen they use in SPF testing (2 mg per cm2). Since it’s based on the thickness of sunscreen, a larger face will need more sunscreen, while a smaller face will need …
I’ve posted a new video on vitamin D and sun exposure. Like most skincare addicts I’ve long thought that the sun was evil and should be avoided at all costs, but it turns out that’s an outdated viewpoint! Vitamin D is important for pretty much everything in your body, and a lot of people are deficient in vitamin D. Does sunscreen …
Or at least I hope all your sunscreen and make-up questions are answered! This video took me a bloody long time to research and put together, so I’m hoping I won’t have to revisit this topic again anytime soon. The questions I talk about: Do I need to wear sunscreen every day, even though I’ll be inside most of the …
Gio of Beautiful With Brains suggested that I do a post on this after an Instagram conversation about SPF, and how it doesn’t actually tell you how much longer you can stay in the sun without burning. So what exactly does a sunscreen’s SPF mean in terms of sun protection? I’ve touched on this topic a few times in my …
“Apply 20 minutes before sun exposure.” You’ve probably seen this label on your sunscreen before, and if you’re like most people, you’ve probably ignored it most of the time. Is early application necessary for both chemical (organic) and physical (inorganic) sunscreens, and why? Here’s what’s going on. All sunscreen ingredients absorb UV before application Applying sunscreen before going into the …
Here’s a new video on why DIY sunscreen doesn’t work. It’s a much more detailed version of my post on DIY sunscreen from a while ago. It’s a topic that’s quite important to me, since it’s one of those cases where having the wrong information can cause serious harm! This video has been a bit delayed due to the rest …
Vitamin D is a vital nutrient in your body, and one of the main sources of vitamin D for humans is exposure to UVB radiation from the sun. However, UV also causes skin cancer and skin aging, so sun protection (sunscreen, protective hats, protective clothing) is important. How should we balance the two? This is a very controversial topic and …
Here’s a simple skincare trick that I’ve found ridiculously useful lately that I thought I’d share in case it helps anyone else out. I’m sure I’m not the first person to do it, but I also haven’t seen it discussed anywhere else (though I haven’t been looking very hard). I’ve started doing something that can be best described as “multi-sunscreening”, …