Nioxin Night Density Rescue Serum is a proven overnight treatment designed to promote the appearance of thicker hair in just 2 months. 90 Percent of consumers noticed their hair looking healthy, after using nioxin night density rescue. Through a powerful blend of antioxidants known to neutralize free radicals on the scalp surface. Based on clinical study of 60 italian panelists conducted for 4 months by eurofins consumer product testing italy 2018/ 2019. Night Density Rescue Serum works its magIc while you sleep, making it an effortless addition to your hair care routine. Simply apply this leave-in treatment before bed and let it work its wonders while you rest. Quickly absorbing into the scalp and hair, the lightweight and non-greasy formula leaves no residue behind. Formulated with a blend of powerful ingredients like ginger, lauric acid and caffeine to help promote thicker, fuller hair overnight. To experience the full benefits, gently massage two to four drops of Night Density Rescue Serum directly onto your scalp. Do not rinse. For best results, incorporate your preferred Nioxin System Kit regimen.