Plush Puppy Black Opal Shampoo - The Blackest Black in the Business An intensely coloured shampoo for toning black coats - gives depth to faded coats & enhances natural colour. For maximum effect use on a well cleansed coat (PP Deep Cleansing Shampoo to remove all residue on the hair). Apply at FULL STRENGTH or minimal dilution & leave in for 10 min before rinsing. If a little bit of black is good, then a lot of black is even better! Incredible results! Use only on black coats. Derived from organic sources with herbal extracts and black tone. Made to Cheryl's special formula.