Arena Gold Biotin Shampoo 400ml is designed to strengthen and nourish your hair from root to tip. To maximize its benefits, thoroughly wet your hair before applying a generous amount of shampoo. Massage gently into your scalp and hair to stimulate circulation and promote absorption. For best results, leave the shampoo on for a few minutes to allow the biotin and active ingredients to penetrate deeply, then rinse thoroughly. This expert approach helps support healthier, thicker, and more resilient hair with regular use.