- Other names: ZnO
- FDA Approval: Yes, up to 25%
- Blocks UVA: Yes
- Blocks UVB: Yes
- Photo-stable: Yes
Interactions with Other ingredients:
Degrades avobenzone if uncoated. Used to enhance photo-stability of the final sunscreen product. Almost all zinc oxide in sunscreens is coated, with the occasional “all-natural” exception (i.e. Devita sunscreen). Also, even at a concentration of 25%, it is difficult for uncoated zinc oxide to achieve a SPF greater than 10.
Less than 0.01% skin penetration in human volunteers with no evidence of hormone disruption. Potential concerns if inhaled.
Cosdna Rating: 1 for comedogenesis, 0 for irritation
Beautypedia Rating: Best
EWG Rating: 2-3