Yes. Moisturizers can help hydrate and repair skin, making it a good step to do after using an exfoliating treatment with salicylic acid. Many salicylic acid-containing products are cleansers, toners, spot treatments, and serums, all of which can be followed by a moisturizer. Generally, it's best to wait a couple minutes after applying a salicylic acid treatment to let it absorb before applying your daily or nightly moisturizer.