Bumble and bumble Pret-a-Powder - equal parts dry shampoo, style extender and volume in a pinch. Suitable for all types and textures; ideal for oily hair, fine hair, or hair that’s missed a shampoo (or two). All Bumble and bumble products are: Vegetarian. Vegan. Bumble and bumble is a PETA certified cruelty-free brand; they do not test any of their products on animals.