Avalon Organics Shampoo Biotin B Complex (414ml). Avalon Organics Thickening Shampoo. Avalon Organics Biotin Shampoo is formulated with a carefully balanced blend of biotin, saw palmetta, quinoa protein and vitamin E, this shampoo works in harmony to:. Help build body in fine, thinning hair. Cleanse and nourish hair from root to tip. Help strengthen hair strands. pH balanced. This Avalon Organics® shampoo formula is EWG VERIFIED™, which means it meets the Environmental Working Group's strictest criteria for ingredients, transparency, and health and features the EWG VERIFIED™ seal on its label.