Journal – sunscreen – Dr. Becca Marcus

Journal

Longer pieces on the questions patients ask me most, written so you can act on them. Evidence first, and always what I would tell you in the office.

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pigment

Why tinted sunscreen works better for melasma

A dermatologist on why iron oxides in tinted sunscreen protect against the visible light that drives melasma, and how to choose one.

September 1, 2026

Not medical advice

Everything on this site is general education, not medical advice, and reading it does not create a doctor–patient relationship. Nothing here is intended to diagnose or treat a condition. For your own skin, see a board-certified dermatologist. Read the full disclaimer.

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