Oxybenzone

Cautionsunscreen_filter

UV filter that absorbs UVB and UVA rays.

What is Oxybenzone?

CAS Number

131-57-7

Formula

C14H12O3

Molecular Weight

228.24 g/mol

Also known as: Benzophenone-3, BP-3, 2-Hydroxy-4-methoxybenzophenone

What does Oxybenzone do for skin?

Absorbs both UVB (280-320 nm) and short UVA (320-350 nm) radiation. Functions as a photostabilizer for avobenzone in US formulations. Converts UV energy to heat via excited state intramolecular proton transfer. Detectable in blood after single application (systemic absorption exceeds FDA threshold of 0.5 ng/mL).

Typical concentration: Up to 6% (FDA maximum)

Is Oxybenzone safe?

Under FDA safety review (proposed GRASE status pending additional data). Banned in Hawaii and Key West due to coral reef toxicity concerns. Detectable in breast milk and urine. EWG rates as moderate hazard.

What does the research say about Oxybenzone?

All Ingredients

Frequently Asked Questions

What does Oxybenzone do in skincare?+

UV filter that absorbs UVB and UVA rays. Absorbs both UVB (280-320 nm) and short UVA (320-350 nm) radiation. Functions as a photostabilizer for avobenzone in US formulations. Converts UV energy to heat via excited state intramolecular proton transfer. Detectable in blood after single application (systemic absorption exceeds FDA threshold of 0.5 ng/mL).

Is Oxybenzone safe for sensitive skin?+

Under FDA safety review (proposed GRASE status pending additional data). Banned in Hawaii and Key West due to coral reef toxicity concerns. Detectable in breast milk and urine. EWG rates as moderate hazard.

What percentage of Oxybenzone should I look for?+

Look for products with Up to 6% (FDA maximum) for clinical efficacy.

Further Reading