Do Hair Vitamins contain any allergens? Ben December 17, 2021 14:42 Updated No, they are allergen-free. Related articles Are Hair Vitamins suitable for children? Are there any side effects from Finasteride or Minoxidil? How effective are the treatments and when will I see results? Are Hair Vitamins suitable for Vegetarians? Can I take Hair Vitamins with other supplements? Comments 0 comments Article is closed for comments.