Is 310 Biotin Melt Vegan? Anah July 02, 2018 15:45 Updated Follow Yes, our 310 Biotin Melt is Vegan Related articles Why is there a Prop 65 notice on 310 Nutrition shipments to California? Is 310 Biotin Melt gluten-free? Do 310 Digestive Enzymes contain gluten, dairy, wheat or any other common allergens? Oops. My friend signed up without using my referral link. Can I still receive the referral points? What is Biotin and how can it help me? Comments 0 comments Please sign in to leave a comment.