No. 16 White Coat Evening Primrose Oil is a dye-free, bleaching agent-free shampoo that brings out the“cool white” highlights in white or cream coats. Its gentle formula will not dry out the coat, an added dose of Evening Primrose Oil maintains the skin and hair’s moisture balance, and optical enhancers refract light and radiate shine. This is a great shampoo for your white coats. It has been quoted as “the best whitening shampoo for maintaining that sparkling white coat.” Also useful for staining around the mouth. Contains no harmful dyes, bleaching agents or bluing agents.