Q&A: Modifying a quick refreshing scalp spray – part two, working with salicylic acid 

Welcome back to this short series in which we’re modifying a formula for a quick spray refresher I created back in 2017 intended to soothe, protect, condition, moisturize, and cool annoyed, itchy, or otherwise perturbed scalps. Yesterday, we created a formula removing the ingredients Tiba didn’t want to use. Today, let’s take a look at…