Night Density Rescue Serum - Overnight Hair Thickening Serum

An overnight hair-thickening serum from Nioxin, Night Density Rescue targets thinning hair to help improve visible density while you sleep. It feels lightweight and non-greasy, absorbing quickly without heavy residue. Suited for fine to thinning hair, it’s formulated for nightly use and presented fragrance-free for those sensitive to added scent.