Zinc oxide
ZnOZinc dioxide
Sunscreen
Zinc oxide is a type of mineral that helps protect your skin from the sun's harmful rays. It works by sitting on the surface of your skin and reflecting the sun's rays, rather than being absorbed into your skin.
Low Concern
Source: FDA GRAS list
Zinc oxide is considered safe for use on skin because it is not easily absorbed into the body and is not known to cause any significant health problems.
No result found for this ingredient.
r/30PlusSkinCare
1590
Full Sunscreen Review (tried 17+)
Topical Zinc Oxide Nanoparticle Formulations for Acne Vulgaris: A Systematic Review of Pre-Clinical and Early-Phase Clinical Evidence.
Crainic D, Popescu R, Vlad CD
2025
Read on PubMedRelated Ingredients
Last updated: May 16, 2026