The Retinol – which is Vitamin A – in iS Clinical products comes from a variety of plants, including green, yellow, and/or orange-colored vegetables. Although Retinol may be obtained in large amounts from animal sources (predominantly animal liver), iS Clinical never obtains Vitamin A from animals, but only from plants. Vitamin A is found in smaller amounts in plant sources, compared to animal sources, so larger amounts of plants are required to obtain a given amount of Retinol.
The Retinol in the Retinol+ Emulsion products is a special encapsulated Retinol, not sourced from animals.