All medications have side effects. Hives, constipation, dry mouth, and headaches are common side effects in a lot of drugs. But in some cases certain side effect combinations can indicate an allergic reaction instead of being a side effect. Be sure to read the specific warnings on the drug to be sure.
Overall, the entire suite of B-complex vitamins is essential for good hair and skin. In addition to Vitamin B12, vitamins B3 and B6 are also critical for hair and skin growth and appearance. A balanced B-complex vitamin supplement provides the extra boost your hair and skin may need to look great.
Best Vitamins for Hair, Skin and Nails. Vitamins for healthy hair, skin and nails contain the same vitamins your entire body needs for growth and maintenance of cells. Hair, skin and nails respond well to certain vitamins that support keratin production. Keratin is the protein that builds hair and skin.