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Key Benefits:. Detangling: Help prevent post wash knotting nastiness.. Healthy Scalp: Flexible bristles gently stimulate the scalp to help promote healthy hair growth.. Expertly Designed: The shape gives more flexibility when brushing.. Eco-Friendly: Wheat Straw (30%) Wheat straw is a renewable and sustainable alternative to some solid plastics. The material is made from a natural by-product of wheat production. Wheat straw is what is leftover once the wheat is harvested, and using it in plastic production is an ideal zero-waste option.