Vitamin A (derived from fish liver oil) is an essential fat-soluble vitamin that promotes healthy functioning of the immune system.* It is integral for normal cell development, as well as the maintenance of healthy skin, mucous membranes, eyesight, and reproductive systems.* Its antioxidant activity further safeguards the body from hazardous oxidative damage and facilitates clear night vision.* It is important to consult a medical professional before consuming high doses of Vitamin A.