Vitamin is a nutrient, and B6 is effective for acne, rough skin and oral ulcer. But from the point of view of nutrition, we all think that it is better to supplement multiple vitamins, and try to take as little as possible or not accept a single medicinal vitamin. Nutrients are not drugs. Just because they don't mean they will drop by drop. How much medicine do you want to take? It's strict enough to take again. However, it is recommended to supplement multivitamins instead of single vitamins, which is harmless to the body.