Regarding the material, these environmentally friendly makeup brushes are made with great care. The bristles are often made from synthetic materials that are soft and gentle on the skin. These synthetic bristles are also more sustainable as they can be produced in an environmentally conscious way. The handles of the brushes are made from materials like bamboo. Bamboo is a wonderful choice for environmentally friendly makeup brushes as it is a fast-growing plant, requiring less water and land than other materials. It gives the brushes a natural and earthy look.