Dr. Groot Scalp Revitalizing Solution Shampoo Hair Thickening 2 Pack 23.66oz New Dr. Groot Scalp Revitalizing Solution Shampoo for Hair Thickening 2 Pack 23.66oz. This innovative microbiome technology formula is clinically proven to provide a healthy-looking scalp while visibly volumizing hair from the root. It contains biotin, rosemary, and prebiotics to nourish follicles and support keratin for fuller hair. • Thickening • Revitalizing • Hydrating Quality & Authenticity Standards 100% Authentic: Sourced exclusively through verified major retail liquidators and distributors. Rigorous Inspection: Checked to ensure complete hygiene, full functionality, all parts included and pristine presentation. New Open-Box/Overstock: We sell brand-new retail overstock, display units, unused returns, and pristine open-box items. Outer packaging may show minor transit wear or have been opened, but items are verified to be in new, unused condition.