Artificial vitamins when consumed in large quantities may be harmful but in any case, in our time, a huge number of different types of vitamin complexes. Of course, not everyone has to be trusted, since not all of these types of supplements contain what it says, there are many fakes, etc. By the way one of the proven vitamin complexes, which is really useful, it is designed to compensate for vitamin needs of the body. All substances balanced accurately based on the daily requirement. Overall this is a really good vitamin supplement.