Thanks so much for your question. Skin Nutrition is quite a big range, so it would depend on what products you have bought and what concerns you’re hoping to target with those products.
I don’t know if this is going to help you, but, here’s what I can say: If you were looking for a cosmetic, then Skin Nutrition would be a good option, as I’m sure it would give you good moisturising capabilities. So from that point of view, I’m sure that the product is sufficient. It is a cosmetic, as it is an over-the-counter product, so we can assume that all the active ingredients are in fairly low dosages otherwise they would not be available at a cosmetic counter. So if your concerns are of a nature where you need very active ingredients (so, deep lines and wrinkles, patches of pigmentation or perhaps acne or scarring or marks on the skin), then a cosmetic is not really going to make any visible changes to your skin. If your needs are simply that you want a good moisturiser and cleanser and you don’t really have anything that bothers you on your skin or you don’t really have any particular concerns, then for sure, a cosmetic is a good starting point.