“Hyaluronic acid is a naturally occurring type of sugar that is produced by the body and found in the highest concentrations in our skin, connective tissue, and eyes,” says board-certified dermatologist Jennifer Chwalek, M.D. “It functions to retain water, keep our tissues well lubricated, and our skin looking firm and youthful,” she says. “It also helps to speed up wound healing by regulating inflammation levels and blood vessel formation, and can increase collagen production, which is another way it can help our skin as we age.” Hyaluronic acid is also found in a variety of foods, which boosts your body’s natural ability to produce more of it, Pace says. Now that winter—and its accompanying dry, dehydrating weather—is here, adding this hydration helper to both your skincare regimen and diet is super important. Here are five ways to reap the benefits on the reg. Lay a hydrating foundation with DERMA E Ultra Hydrating Alkaline Gel Booster. Formulated with hyaluronic acid and alkaline water to increase moisture levels, this lightweight gel replenishes and balances skin’s natural moisture barrier and reduces the appearance of fine lines for a supple, healthy glow. Apply a few drops morning and night to your face and neck under your moisturizer or use it alone.