Save vs. Splurge: Hyaluronic acid serum

It will feel like fall eventually, and as soon as that day comes, drier skin is likely to follow shortly thereafter. For those of you who aren’t down with buying an entirely new skincare routine for cooler weather, there’s a relatively simple way to give your skin the extra moisture it needs: A hyaluronic acid serum. There’s no shortage of options out there at a variety of price points, and here are two that are sure to keep your skin happy and healthy until warmer temperatures roll around again—regardless of your budget.

Splurge: SkinCeuticals H.A. Intensifier ($98)
Ideal for all skin types, this serum does more than deliver a mega-dose of hyaluronic acid. It also contains Proxylane to visibly plump up the skin and improve the appearance of fine lines and wrinkles. It also helps your skin feel firmer, and the serum-gel formula absorbs quickly, won’t pill if you apply other products afterwards and it leaves skin soft, smooth and primed for makeup. You can also use it on its own as moisturizer if your skin is on the oily side, or in conjunction with moisturizer if you’re on the drier side.

Save: La Roche-Posay Hyalu B5 Hyaluronic Acid Serum ($29.50)
This may be a less expensive option, but it definitely doesn’t scrimp on hydration. You get skin replenishment courtesy of hyaluronic acid and vitamin B5, and the lightweight water-gel texture absorbs in a flash. Perfect for all types of skin (including sensitive), you also get improvement in fine lines, wrinkles and skin radiance—in addition to extra moisture, of course.

If you’re sticking to your usual skincare routine and just kicking up the hydration with a hyaluronic acid serum, it goes without saying that cooler weather doesn’t mean you can skip the sunscreen (and you can always switch to a more hydrating formula if your skin is super-thirsty!)