Lucy Essentials Brushes are crafted with eco-friendly bamboo handles, aluminum ferrules, and uber soft synthetic bristles. There is no animal cruelty involved with the making of our brushes. Sometimes animal hair brushes can be harsh and cause microscopic tears in the skin, so you are safe with us! This is especially important if you have sensitive skin or suffer from rosacea. You will love how soft and gentle our brushes feel against your skin.