Tretinoin/benzoyl peroxide
Tretinoin/benzoyl peroxide, sold under the brand name Twyneo, is a fixed-dose combination medication used for the treatment of acne. It contains tretinoin, a vitamin A derivative, and benzoyl peroxide, an oxidizing agent.The combination was approved for medical use in the United States in July 2021.

References
External links
"Tretinoin". Drug Information Portal. U.S. National Library of Medicine.
"Benzoyl peroxide". Drug Information Portal. U.S. National Library of Medicine.
Clinical trial number NCT03761784 for "A Study of S6G5T-3 in the Treatment of Acne Vulgaris" at ClinicalTrials.gov
Clinical trial number NCT03761810 for "A Study of S6G5T 3 in the Treatment of Acne Vulgaris" at ClinicalTrials.gov