Nanosome Technology: DS Laboratories formulas feature our proprietary Nanosome Technology. This technology allows for the continuous release of the active ingredients creating higher efficacy with longer lasting results. Suggested Use: Massage Revita Shampoo into wet hair. Leave on for 2 minutes and rinse. For the best results use 5x per week in combination with Revita Conditioner. Most users can see results within 90 days of consistent use with optimal results seen within 120 days. Results may vary. What It Does: Revita improves the look, feel, and texture of your hair. From the first use you will notice hair feels healthier, thicker, and has more volume. Revita works to not only support hair density, but to strengthen hair from the root to prevent future breakage and give you your healthiest hair yet. Who is Revita Shampoo For: Men and women who are concerned about thinning and excess shedding. Revita Shampoo is safe for all hair types and textures and can be used on color-treated hair. Revita Hair Density Shampoo: Revita is created with top dermatologists and formulated with key and effective ingredients that act against breakage and excess shedding while supporting thicker, fuller, healthier-looking hair. By combining ingredients like DHT Blocker caffeine, Biotin, antioxidants, hydrating molecules, and amino acids, Revita delivers an effective shampoo to support hair density and help increase volume.