Nutrisorb Liquid Vitamin A | Biocare (15ml). Biocare Vitamin A Liquid. Nutisorb Vitamin A is a simple liquid vitamin A preparation. Nutrisorb vitamins can be taken under the tongue or added to drinks. The Nutrisorb range is particularly suited to those with dietary intolerances.. Liquid vitamin A ideal for those who have difficulty swallowing capsules and tablets. Can be taken sublingually (under the tongue) for those with gastrointestinal or malabsorption problems. Provides 2500iu vitamin A per drop. Suitable for the elderly. Vitamin A contributes to normal iron metabolism. Vitamin A contributes to the maintenance of normal mucous membranes. Vitamin A contributes to the maintenance of normal skin. Vitamin A contributes to the maintenance of normal vision. Vitamin A contributes to the normal function of the immune system. Vitamin A has a role in the process of cell specialisation. Presented in a simple, hypoallergenic olive oil base. One drop taken daily in water with food, or directly under the tongue, or as professionally directed.. Product Information per Daily Intake​. INGREDIENT. AMOUNT. PROVIDING. % EC NRV. Vitamin A 2500iu. 750mcg. Retinol Equivalent. 93.8