A-Ret Tretinoin Gel 0.05% 20g | Acne, Texture & Dark Mark CareA Ret Tretinoin Gel 0. 05%, 20g is a dermatologist approved retinoid designed for oily and combination skin. This gel targets acne, uneven texture, and early fine lines while supporting smoother, clearer skin over time, and is available at tretinoins. co. za. As a prescription product in South Africa, it should be applied at night and always paired with daily Sunroof Sunscreen Lotion protection when using tretinoin cream. Key Benefits of a ret