Prism Serum is our original exfoliating serum, made-up of naturally-derived AHAs (from Sugar Cane, Bilberry, and Sugar Maple) + naturally-derived BHA from Willow Bark. While we love Prism Serum for pure exfoliation, we found that many people with sensitive skin have a hard time using this product. We created a formula that had the same powerful exfoliation properties but also helped support the skin’s moisture barrier–making it safe to use for all skin types. Milky Way is powered by 10% AHAs + 3% PHAs in addition to soothing oat extract, hydrating hyaluronic acid + tremella mushroom, and barrier-repairing ceramides. Think of this as our upgraded version of Prism Serum with added multitasking benefits!