Pestle & Mortar Pure Hyaluronic Serum, $69

Hyaluronic acid is dehydrated skin's best friend. Whether winter wind is bumming out your skin's barrier or you're naturally on the dry side, a little extra HA in your routine can go a long way. Pestle & Mortar can barely keep this nourishing serum on the shelves. Bonus: It's alcohol-free and 100 percent vegan.

derma e Hydrating Serum, $30

This little bottle of HA-forward serum is a dry skin fix in a jar. Layer it under moisturizer all winter long for an extra boost of moisture barrier protection. It's 100% sulfate- and paraben-free, so even sensitive skin users can feel the relief of a well-moisturized face.

La Roche-Posay Pigmentclar Serum, $53

Sun damage might be the most common -- or is it just the most annoying? -- skin concern. It takes consistent treatment and a product that works for you, but spots will eventually fade if you treat them immediately. Apply this serum to your entire face and neck, not just the affected areas, once a day to address an uneven complexion. Of course, the easiest (and most wallet-friendly) way to treat sun spots is to prevent them in the first place, so let's all resolve to wear SPF every day of 2017 (see the best sunscreens here.)

Garnier Clearly Brighter Dark Spot Corrector, $17

We've already touted the skin-brightening benefits of Vitamin vitamin C. This corrector takes an antioxidant formula to help treat dark spots and promote cell turnover, making way for the even, glowing skin tone that's in there somewhere.

Clarins Double Serum Complete Age Control Concentrate, $89

Once you get to a certain age, you find yourself battling just about every skin concern at once. That's when you need a multi-targeted anti-aging serum that addresses lines, sagging and sun spots all at once. Clarins' multitasking serum combines high-tech ingredients with potent botanicals for an award-winning serum that leaves skim firmer and more radiant looking in as little as a week.