Maybe my experience will come in handy. I bought these vitamins for the whole family. I considered that if you drink 1 capsule, the norm is the same as in children's similar vitamins in the same series, an adult 2 vitamins a day is enough if compared with Russian vitamins. Disadvantages: 1. My stomach reacts if I drink them on an empty stomach - it's strange, before that, there have never been reactions. 2. At me on the face with reception of these vitamins the skin became fat, pores were extended and jump out spots. 3. the husband - a similar situation, 4. the child - poured acne all over the face and red itchy acne throughout the body. Advantages: I really feel that nerves are stronger and stronger. In general, We were not approached, unfortunately, these vitamins. For yourself, look. Whether there is an allergy.