Discover the Nioxin Night Density Rescue Serum, an overnight hair treatment designed to enhance thicker, fuller hair in just 2 months. This serum features antioxidants that neutralize free radicals on the scalp, promoting hair growth and density. Key benefits include nourishing the scalp for healthier hair, strengthening the hair shaft to reduce breakage, and a lightweight, non-greasy formula that absorbs quickly. Suitable for all hair types, simply massage 2-4 drops onto your scalp each night for best results.