As a derivative of vitamin A in the retinoid group, retinol is considered a beauty active ingredient in cosmetics and appears in some non-prescription skin care products. Retinol can increase cell regeneration, penetrate the skin as well as stimulate collagen production to support acne treatment, antibacterial and melasma on the skin surface.

Melasma is a common skin condition in which brown patches appear on the skin, on the face, but can also appear on the forearms and neck. Melasma is not a serious condition but it can affect the appearance and psychology of the sufferer. So how to treat melasma effectively?