Hi-Po Emulsi-A™ is a high-potency formula that delivers concentrated vitamin A in a convenient liquid form. Just one drop of this unique product provides 5,000 IU of vitamin A, as retinol palmitate (1,500 mcg retinol activity equivalents [RAE]), allowing for flexibility in titration and ease of use. Vitamin A plays a critical role in immune function and is well known for promoting eye health, thyroid function, and red blood cell function.