A skincare must-have and our #1 best seller, DermaQuest Essential B5 Hydrating Serum is a silky, weightless serum that provides an essential first step to any routine, delivering extraordinary, multi-tiered hydration to each and every cell and making smooth, supple, restored skin your new normal. Ideal as a standalone serum or to prime the skin for layering additional serums. | DermaQuest Advanced Essential B5 Hydrating Serum, 1 oz | Dermstore