The Dr. Groot Scalp Revitalizing Solution and Hair Thickening Shampoo with Biotin is a standard-sized hair care product designed for all scalp types. This liquid formulation combines ingredients like Niacinamide, Salicylic Acid, Arginine, Biotin, and Prebiotics to promote hair thickening, volumizing, shine, and smoothness. Developed by Dr. Groot, the product utilizes Microbiome Technology and is dermatologically tested to ensure safety and effectiveness. The shampoo is formulated without silicone and sulfates, making it suitable for adults looking to improve the health and appearance of their hair.