Intensifying oil with Colorboost© formula to maximize your tan. Rich in Carrot Seeds, Australian Tea Tree Oil, Roucou Oil, Banana Extract, Aloe Vera and Vitamin E. Water-based, non-greasy dry oil, enriched with Black Walnut extract with a practical spray dispenser. Ideal for those who want a super intense and long-lasting tan. What are natural bronzers? They are natural pigments such as, for example, henna and black walnut shell that give an immediate additional color that lasts 1-2 days.