Smooth Proof Serum for Frizzy Hair

Biolage’s Smooth Proof Serum tames frizz with a lightweight, non-greasy finish that smooths strands and reduces flyaways. Designed for frizzy or humidity-prone hair, its silky texture absorbs quickly and suits fine to medium hair types. Fragrance-free and color-safe, the serum works as a styling and finishing step to add shine without weighing hair down.