Dasone Gel 5% 10g (Dapsone)Dasone Gel 5% (Dapsone) Prescription Acne Treatment Dasone Gel contains Dapsone 5%, a sulfone compound with potent anti inflammatory and antibacterial properties for treating acne vulgaris. Clinically proven in randomised double blind studies to reduce both inflammatory and non inflammatory acne lesions over 12 weeks. Manufactured by Crystolite Pharmaceuticals. Prescription required. Active Ingredient Dapsone 5% w w (topical gel) Indications Dasone