Viviscal Pro- Professional Thin To Thick Shampoo, 250ml"Gently cleanses for thicker looking, gorgeous hair. Viviscal Professional Shampoo cleanses the hair and scalp to promote gorgeous hair as part of the complete Viviscal Professional Thin to Thick hair care collection. Combined with Biotin, Collagen & Keratin, the Viviscal Professional Thin to Thick hair care collection promotes the appearance of healthy looking hair growth*. For best results, use the Thin to Thick Shampoo as part of the complete