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2. American Academy of Dermatology 2019. How to apply sunscreen. https://www.aad.org/public/spot-skin-cancer/learn-about-skin-cancer/prevent/how-to-apply-sunscreen.
3. American Academy of Dermatology 2019 Sunscreen FAQs. https://www.aad.org/media/stats-sunscreen.
4. American Academy of Dermatology 2020.Talking points: JAMA study on absorption of sunscreen ingredients. https://www.aad.org/member/advocacy/promote/practice/social-news-jama-sunscreen.
5. Bond P. Why do Some Sunblocks Give off a White Cast, and How Can I Avoid it? https://www.adorebeauty.com.au/skin-care/sunscreen/guide/avoid-white-cast. 2019.