“Physical” vs. “chemical” sunscreens and other sunscreen myths

Titanium dioxide and zinc oxide are often categorised as “physical” sunscreens, whereas every other sunscreen used is considered a “chemical” sunscreen.   “Physical” Sunscreens “Chemical” Sunscreens Zinc Oxide Titanium Dioxide Octocrylene Avobenzone Octinoxate Octisalate Oxybenzone Homosalate Mexoryl SX Mexoryl XL Tinosorb S Tinosorb M … You’ll often find different rules and advice for using “physical” […]

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For everyday sunscreen, how high should the PPD (UVAPF) be? I’ve been on the hunt for a new sunscreen, so I’ve been thinking about this a lot!

Hi @wormspoor, Thanks for the question! I’d recommend that SPF and UVAPF are similar. So if a product’s SPF is 30, the UVAPF should be around 30 as well. Why? This best mimics the reduction in UVA and UVB that shade provides. As well this gives you a better idea of how much protection from […]

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