Im 17 years old and my hair use to be really long btw im biracial black and white and I came across these hair vitamins. They have. Vitamin A (beta-carotene) 10,000 U 200% vitamin C (ascorbic acid) 250 mg 417% vitamin-1 (d-Alpha tocopheryl acetate 12 IU 40% vitamin-2 (riboflavin) 100 mg 5882% Niacinamide 30 mg 150% vitamin-6 (pyridoxine hcl) 100 mg 5000% Folic acid 400 mcg 100% Biotin 4000 mcg 1333% Pantothenic acid (calcium pantothenate) 250 mg 2500% Calcium (carbonate) 200 mg 20% Zinc (amino acid chelate) 5 mg 33% Copper (gluconate) 1 mg 50% Can I take this hair vitamin.