Take control of ageing. Joico Re:nu Age Defy Re:nual Serum slows down the greying process. It restores hair's soft, silky, manageable texture & creates the optimal environment to grow healthy, lustrous, radiantly youthful hair. Directions for use: Use Joico Re:nu Age Defy Re:nual Serum twice daily, morning & evening. If applying after showering or shampooing hair, make sure hair & scalp are dry before use. Step 1. Part hair, apply Joico Re:nu Age Defy Re:nual Serum directly onto scalp one drop at a time, distributing the product throughout the scalp. Step 2. Once product has been applied, gently massage in with fingertips. Joico Re:nu Age Defy Re:nual Serum is a leave-in treatment. Do not wash or wet hairline immediately after application. A full set of instructions are included. Refill available here.