The combination of salicylic acid with retinoids such as retinol, retinal, or synthetic retinoids like adapalene is routinely considered in treatments for acne-prone skin. These two actives indeed operate through complementary mechanisms: salicylic acid exfoliates the superficial layers of the skin and unclogs pores thanks to its lipid solubility, while retinoids regulate keratinocyte differentiation and stimulate deep cellular renewal. Their combination could enable them to act simultaneously on blackheads, open or closed comedones, and hyperkeratinization.
The combination of salicylic acid and a retinoid may also act on the signs of photoaging. This is indeed what a study conducted by DRAELOS et al. in 2016 suggests. It compared the efficacy of 0.25% retinol and 0.25% tretinoin when applied immediately after a 30% salicylic acid peel. Twenty women completed two treatment sessions, two weeks apart, during which each half of the face received one of the two retinoids, followed by the peel application. Double-blind evaluations by both investigators and participants demonstrated that after four weeks, both protocols significantly improved pore size, skin texture, and overall appearance. According to the investigators’ ratings, tretinoin was slightly more effective than retinol, but the study concluded that either retinoid could be used safely after a salicylic acid peel to attenuate the signs of photoaging.
It is, however, recommended to be cautious with this combination, especially for sensitive skin. Retinoids and salicylic acid can be irritating, particularly during initial use. To minimize side effects, it is best not to introduce them simultaneously into your skincare routine and to apply them at different times (for example, salicylic acid in the morning and the retinoid in the evening). Finally, in cases of oral isotretinoin treatment, it is generally advised to avoid the concomitant use of salicylic acid so as not to further compromise the skin barrier.