Hyaluronic Serum, 100 mL

This upsized bottle of Dr. Sturm’s ultramoisturizing hyaluronic acid is made with long- and short-chain hyaluronic acid molecules to deliver a hydrating boost that leaves skin instantly refreshed. (Hyaluronic acid is naturally found in the skin, but your body produces less of it as you age.) In this serum, the compound is combined with purslane—a botanical Dr. Sturm prizes for its beautiful effects on skin—to help soothe and revitalize.

• 100 mL