Nioxin Night Density Rescue - 70ml Night Density Rescue is an overnight leave-in treatment, clinically proven to boost hair density in 2 months. This hair serum has a powerful blend of antioxidants known to neutralize free radicals on the scalp surface. This Antioxidant hair serum leaves the scalp feeling refreshed and is suitable for all hair types. Leave-in Antioxidant hair serum to boost hair density. Clinically proven to boost hair density in 2 months** Formulated with Oxydine24 technology - a powerful blend of antioxidants known to neutralize free radicals on the scalp surface. Inspired by the body’s nightly regeneration process 90% of consumers who tried Night Density Rescue noticed their hair looking healthy* (*Based on clinical study with 60 Italian panelists conducted for 4 months by Eurofins Consumer Product Testing Italy 2018/ 2019.) This overnight hair serum leaves no residue on pillow. Complement your Nioxin Night Density Rescue treatment with 3-Part NIOXIN System Kits. Nioxin is the N°1 Salon Brand for thicker and fuller hair with more than 30 years expertise in thinning hair. Use Nioxin experts recommend to apply 2 to 4 droppers on the scalp at night as needed. Use on dry or damp hair. Massage to distribute evenly. Do not rinse. For daily use. Using your hands, softly massage the head, spreading your fingers to touch every area of the scalp. Add a little pressure to ensure the scalp moves with your fingers in a circular motion. After massage, gently brush the hair.