“The efficacy and safety of a cream containing salicylic acid, lipohydroxy acid, nicotinamide and piroctone olamine combined with 5% Benzoyl Peroxide in the treatment of acne vulgaris: a randomized controlled study” (2022) SKIN The Journal of Cutaneous Medicine, 6(6), p. s88. doi:10.25251/skin.6.supp.88.