For Fine, Natural, Noticeably Thinning Hair A daily volumizing scalp & hair conditioner that moisturizes & improves resilience, while promoting a healthy scalp environment with soothing essential oils, special anti-oxidants & enzymatic complexes. This is developed by Nioxin lab with advanced formula, which are: Bio Amp adds thickness & strength. Activ-Renewal gives a more youthful-looking scalp & fuller, healthier looking hair. Scalp Access Delivery System helps protect nutrients as they moisturize & energize the scalp & hair combined with SPF scalp protection against UV rays. How to use: Apply to cleansed wet hair & distribute through hair & scalp. Leave in for 1-3 minutes, then rinse thoroughly. For best result, follow with Nioxin System 2 Treatment.