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Dr Michelle Wong, professional SPF video maker on Twitter: "FWIW I think it's cheating - if you insist on mineral-only sunscreen, you don't get to stick four carbons on octisalate to get
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![Dr Michelle Wong, professional SPF video maker on Twitter: "FWIW I think it's cheating - if you insist on mineral-only sunscreen, you don't get to stick four carbons on octisalate to get Dr Michelle Wong, professional SPF video maker on Twitter: "FWIW I think it's cheating - if you insist on mineral-only sunscreen, you don't get to stick four carbons on octisalate to get](https://pbs.twimg.com/media/FOCmQTlaMAEiD4j.jpg)