Duo Contains - 1 - 15ml/0.5 Fl. Oz REACT Base Coat & 1 - 15ml/0.5 Fl. Oz REACT Top Coat REACT Base and Top Coat work with any lacquer system! With up to 10 days of wear, quantum shine and no LED Light needed. REACT Base Coat is a unique formula that provides radical color adhesion to prevent chipping. REACT Top Coat seals the deal with chip resistance that outshines the rest.