Are Hair Vitamins suitable for children? Ben December 17, 2021 14:42 Updated They are designed to supplement adults (18 years old or above), and are not suitable for children. Related articles Are Hair Vitamins suitable for Vegetarians? Where is my order? Who should take Hair Vitamins? Do Hair Vitamins contain any allergens? Can I take Hair Vitamins with other supplements? Comments 0 comments Article is closed for comments.