Gloss-it Gloss Car Wash Shampoo is formulated with the same Nano Synthetic Advanced Polymer (NASP) that is in our Gloss Finish. This polymer increases washing lubricity, encapsulating loosened grit to reduce car wash swirls. This makes Gloss Car Wash Shampoo an excellent choice for washing black, red, and dark colored vehicles. Gloss Car Wash Shampoo is pH balanced and is guaranteed to not strip waxed and polished finishes. Gloss Car Wash Shampoo is highly concentrated meaning 1 cap full per 3 gallons of clean water. Take time to pre-rinse thoroughly before washing your finish. We recommend our custom Gloss-it Foam Wash Mitt and wash bucket system to help prevent and reduce car wash swirls and marring.