Tretinion Gel USP A-Ret 0.05% 20g ₦7,500 A Ret Gel contains tretinoin, a form of vitamin A as its active ingredient. It is used for the topical treatment of acne. During the treatment with A Ret Gel, it is recommended to avoid being exposed to sunlight for too long after applying for this medicine. You can use sunscreens with at least SPF 15 before going outdoors. Drink plenty of water and fluids to keep yourself hydrated, as it can make your skin dry. Do not pop acne as it may lead to bacteria