Can a 13 year old girl use vitamin k eye cream?

The use of any vitamin cream or supplement containing fat soluable vitamins (A, D, E, K) should be used with some degree of caution. Fat soluable vitamins are not as easily discarded by the body as water soluable vitamins (B complex, and C). The end result is that fat soluable vitamins tend to collect in the fat cells of the body and can even (over time) collect to undesireable levels. Although it is less likely that this would happen with the small amout used to treat eye lids, a 13-year-old should not get into the habit of allowing the body to become accustomed to receiving vitamins from sources other than diet. She would be setting herself up for potential problems as she progresses through adolescence adolescence.