Avobenzone is the most widely used UVA filter in chemical sunscreens. UVA rays penetrate deeper than UVB and drive ageing and pigmentation, so a sunscreen without a UVA filter leaves an important gap even at a high SPF.

What Avobenzone Is Used For

UVA protection in broad spectrum sunscreens
Daily sun protection in moisturisers and makeup
Protecting skin prone to melasma and pigmentation
Cover during treatments that increase sun sensitivity

Common Side Effects

Stinging if it reaches the eyes
Irritation in sensitive skin
Contact allergy, uncommonly

Precautions

Avobenzone breaks down in sunlight unless the formula stabilises it, which most modern sunscreens do, so reapply every two to three hours outdoors. It can stain light fabric where it meets iron in water. Apply generously, since a thin layer gives far less protection than the label states, and remember that shade and covered sleeves outperform any bottle.

This page is general information only. It is not a substitute for advice from your doctor or pharmacist, and it does not include dosage. Always follow the directions given to you and read the leaflet inside the pack.