Zinc gel shows promise for acne
Towersey L, Correia P, Fajgenbaum Feiges M, Euzébio Gonçalves Junior J, Sant'Anna B, et al. Assessment of the Benefit of a Deep Cleansing Gel Containing Salicylic Acid 2%, Zinc Gluconate 0.2% and Lipohydroxy Acids 0.05% in Patients with Mild to Moderate Truncal Acne: Results from an Exploratory Study. Clin Cosmet Investig Dermatol. 2023;16:119. doi:10.2147/CCID.S394123
Vitamin C shows moderate efficacy
Sharara MA, Fawaz GA, El Samahy MH. Efficacy of tranexamic acid solution versus vitamin C solution after micro-needling in treatment of persistent post acne erythema: a split face clinical and 3DAntera camera comparative study. Arch Dermatol Res. 2024;317:150. doi:10.1007/s00403-024-03582-0
Nutraceuticals effective for acne
Amer SS, Nasr M, Abdel-Aziz RTA, Moftah NH, El Shaer A, et al. Cosm-nutraceutical nanovesicles for acne treatment: Physicochemical characterization and exploratory clinical experimentation. Int J Pharm. 2020;577:119092. doi:10.1016/j.ijpharm.2020.119092