We Tried It: Switching to Mineral & Zinc Oxide Sunscreens
2021-8-2 · Zinc oxide. Zinc oxide is a mild astringent with weak antiseptic properties. When it’s applied to the skin, it forms a barrier that protects against irritants, moisture, and the harmful rays of the sun. Zinc oxide is the active ingredient in diaper rash cream and some first aid ointments that treat minor burns, cuts, scrapes, and insect bites.