Density Defend Diaboost Hair Thickening Serum

Lightweight, leave-in scalp serum from Nioxin designed to support hair density and reduce the look of thinning. Fast-absorbing with a non-greasy texture, it’s suited for fine to thinning hair types and daily use. Fragrance-free and scalp-targeted, the formula aims to strengthen visible fullness while maintaining natural movement and shine. Ideal for those seeking fuller-looking hair without heavy styling products.