R+Co Sunset Blvd Blonde Shampoo For a vegan purple shampoo option, try the R+Co Sunset Blvd Blonde Shampoo (£30). It uses natural mineral pigments to brighten blonde hair and a rich and creamy, coconut-derived surfactant to remove impurities without drying out the hair of natural oils. Image Source: justmylook.com R+Co Sunset Blvd Blonde Shampoo £30 from justmylook.com Buy Now