CarrotCarrot Co2 extract is a unique product, and comes from a high-performance extraction of carrot roots. Carrot Co2 extract is a unique product, and comes from a high-performance extraction of carrot roots. contains pro-vitamin A (carotenoids) in large quantities, beta carotene is a precursor of Vitamin A, causing a stimulation of the production of melanin, which is the pigment responsible for skin color (not tanning as is often believed).