Doctor Castor Leave-In is infused with the purest extracted castor oil. This incredible leaf is rich in omega 6, 9 fatty acids, and vitamin E. It nourishes and hydrates hair, reducing hair loss, split ends and frizz, promoting strong and healthy growth. What makes Doctor Castor even more amazing is that it is a vegan product, not tested on animals and has a formula that is free of sulfate, parabens, silicone and petroleum.