The Curl Experts® Quench Thirsty Curls with Moisture, Not Weight. Perfect For Tight Curls. The Original Curl Expert Since 1984. Curl Quencher® Moisturizing Shampoo infuses intense moisture, giving curls the hydration they need without heaviness. With Chamomile and Vitamins A, E, and B5, our formula encourages defined, uniform curl formation as it cleanses without stripping hair. Massage gently through wet hair. Rinse thoroughly and use Curl Quencher® Moisturizing Conditioner.