Are Hair Vitamins suitable for Vegetarians? Ben December 17, 2021 14:42 Updated No - sadly not due to the presence of Hydrolysed Collagen (Avian) Related articles Can I take Hair Vitamins with other supplements? Is Power Shampoo cruelty free? What are the ingredients of Hair Vitamins? What do Hair Vitamins do? Are Hair Vitamins suitable for children? Comments 0 comments Article is closed for comments.