A study done by the FDA indicated that the Vitamin A used in almost half of the roughly 500 sunscreens on the market may actually increase the growth of skin cancer. Dr. Kim Gittere Abson, a dermatologist at the Polyclinic in Seattle, “So this is a study that was conducted by the FDA that looked at mice using a form of Vitamin A called Retinal Palmitate.” “And in the mice, that were just treated with the Vitamin A, versus the ones that were not, there was a 21% increase in skin cancer in those mice.”