Density Defend Diaboost Hair Thickening Serum Leave-In Scalp Treatment Serum

Nioxin's Density Defend Diaboost is a leave-in scalp treatment serum designed to support the appearance of fuller hair and reduce the look of thinning. The lightweight, fast-absorbing texture spreads easily across the scalp without residue. Intended for people with fine or thinning hair, it targets scalp health while delivering conditioning benefits and promoting thicker-looking strands.