Assessment of the photoprotection properties of hair cosmetics using the hemispherical directional reflectance method.

Background: Solar radiation is responsible for changes in the structure of human hair, the damages include proteins (65%-95%), lipids, and melanin. The aim was to examine the effectiveness of sunscreen in hair cosmetics and whether hair color affects it.

Materials And Methods: The study included nine women, divided according to hair color to three groups: light, dark, and gray hair.