how to differentiate physical and chemical sunscreen
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How they block rays
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What is the difference between chemical sunscreen and physical sunscreen?
Physical sunscreen uses minerals that sit on top of skin and re铿俥ct away UV rays. Chemical sunscreen uses ingredients that absorb and transform UV rays into heat. There are two main types of sunscreen: physical and chemical. Both have their own unique properties and bene铿乼s, and both help protect skin from UV rays.
Should you choose a chemical or physical sunblock?
鈥淲hether they choose a chemical sunscreen or a physical sunblock, if a patient wears an SPF of 30, I鈥檓 happy with it,鈥?says Dr. Harvey. 鈥淭hat said, there are some key differences between chemical and physical formulas.鈥?Chemical sunscreen absorbs into the skin and then absorbs UV rays, converts the rays into heat, and releases them from the body.
What’s in your sunscreen?
鈥淐hemical sunscreen usually contains oxybenzone, dioxybenzone, avobenzone, octocrylene, homosalate, octinoxate and other chemicals, which absorb and release damaging UV rays,鈥?shares Dr. Engelman.
How does chemical sunscreen work?
Chemical sunscreen absorbs into the skin and then absorbs UV rays, converts the rays into heat, and releases them from the body. The active ingredients in chemical sunscreens include avobenzone, octinoxate and oxybenzone.
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