How does salicylic acid in a shampoo work, and will it dry out my hair?

Salicylic acid in this shampoo serves a keratolytic function. This means it helps to break down and loosen the bonds between dead skin cells on the scalp's surface. This action allows built-up flakes and debris to detach and be washed away more easily, rather than remaining stuck and visible.

Its primary effect is on the scalp, not the hair strands. While it is a potent exfoliant, the formulation is designed as a rinse-off product, which minimizes prolonged exposure. To prevent potential dryness, apply the shampoo mainly to the scalp. The suds that run down the hair during rinsing are usually sufficient for cleansing the lengths. If your hair ends are dry or damaged, it is good practice to follow with a conditioner applied only from the mid-lengths to the ends, avoiding the freshly cleansed scalp. This focused application helps manage scalp flaking without unnecessarily drying out the hair.