Bioxcin Collagen and Biotin Volumizing Hair Serum fills and strengthens thin and weak hair with hydrolyzed collagen, biotin, and Bio-Activ peptides. It helps prevent hair loss due to the patented BioComplex B11. The patented BioComplex B11 is a plant extract composed of German chamomile, nettle, yarrow, plantain, lily of the valley, and elderflower; it nourishes and strengthens hair and helps fortify hair strands. Its effectiveness against hair loss is clinically proven. Hydrolyzed Collagen: Nourishes, thickens, and fills the hair. It provides volume and adds vitality and shine to the hair. Biotin: Nourishes and strengthens the hair follicles. Helps prevent hair loss. Dermatologically Tested. Suitable for Sensitive Scalps. Its pH matches the pH of hair and skin.