Cosmetics ingreients come from a variety of sources but, unlike the ingredients of food, are often not considered by most consumers. Cosmetics often use vibrant colours that are derived from some unexpected sources, ranging from crushed insects to rust. Many new techniques have allowed manufacturers to synthesise such colours and the use of animals (or parts thereof) has been declining for many years and is now virtually eliminated, due in large part to the efforts of Beauty Without Cruelty, PETA and other groups.