Homosalate

Also known as: Homomethyl salicylate, HMS

Moderate ConcernUV filterEWG: 4-6

A UVB chemical filter that accumulates in the body and has weak endocrine disruption evidence.

How it works

Homosalate absorbs UVB radiation (295–315nm) and is used primarily to enhance the SPF of sunscreen formulas. Studies show it penetrates skin and accumulates in the body faster than it can be eliminated. The EU SCCS concluded in 2021 that homosalate is not safe above 0.5% due to systemic absorption and potential endocrine effects — but it is currently allowed at up to 10% in the EU.

Avoid if

ChildrenPregnancy

Commonly found in

Chemical sunscreensSPF moisturizers

Safety & restrictions

EU SCCS determined it is not safe above 0.5% — but EU currently allows up to 10% (under review). Weak endocrine disruption. Bioaccumulates. FDA also reviewing safety data.

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For informational purposes only. Not medical advice. Consult a dermatologist for personalised guidance.