A reduction in the amount of the hormone responsible for facial hair is one of the causes of a patchy beard. The USTRAA Beard Growth Oil- Advanced is a specially designed beard growth oil that works on difficult roots and helps stimulate beard growth. It contains DHT boosters that promote beard development, as well as Redensyl, which works on follicle stem cells to promote overall growth. Other elements such as Gooseberry Oil (Amla), Watermelon Seed Oil, Vitamin E, and Acai Berry Oil aid to nourish and maintain the beard healthy. This oil is silicone-free, paraben-free, mineral oil-free, petrolatum-free, and sulfate-free.