Along with 2% HA, this pillowy serum includes chamomile extract (a known skin soother) and rice bran extract to cushion and plump your skin. Plus, it has a base of aloe vera juice, so you know it hydrates to the max. 

Hyaluronic Acid Serum, Savor Beauty ($84)

Dubbed an HA "booster," this serum contains two types of hydrolyzed hyaluronic acid for a lightweight veil of hydration. Either use it on its own, or feel free to mix a few drops into your moisturizer for extra slip or even in your foundation for dewier coverage. 

Hydration Station Booster With HA, Versed ($19.99)

Prepare to be stunned: This number includes a blend of five (yes, five) molecular weights of hyaluronic acid (ultralow, low, medium, high, and ultrahigh) to truly plump each layer of your skin. It also has three types of plum extracts—Kakadu, Illawarra, and Burdekin—for a welcome antioxidant kick. Your skin? Looking bright and juicy. 

Plum Plump Hyaluronic Serum, Glow Recipe ($42)

If you have sensitive skin, this HA serum was designed just for you: Along with the hydrating star, it has jojoba oil, glycerin, vitamin E, sunflower oil, and a blend of fruit extracts to condition your skin and leave it supple. 

Back to Life Hydration Serum, Pai ($74)

Peer closely into the bottle, and you'll notice little specks suspended in the pale pink goop—those, ladies and gentlemen, are the gromwell-root-oil-infused bubbles that "pop" and melt into your skin upon application—the ingredient has been used as a skin repairer in Traditional Chinese Medicine (TCM). To top it off, the formula has three types of hyaluronic acid and rosewater for a swell of hydration. 

Sweet Rescue Bubble Burst Serum, Knours Beauty ($38)

Simple, highly concentrated, and does the job just right: This potent HA serum is like a drink of water for your skin, and it folds perfectly into any skin care routine. 

Hyaluron Serum, Susanne Kaufmann ($169)

Along with HA, this serum contains a cocktail of skin-conditioning ingredients, like ceramides, panthenol, squalane, and a lentil, apple, and watermelon antioxidant complex for brightness. 

B-Hydra Intensive Hydration Serum, Drunk Elephant ($48)

Arguably your best budget buy—simple, to the point, yet oh-so hydrating. A no-fuss bottle any skin type will adore.

Hyaluronic Acid, The Inkey List ($7.99)

Think of ampoules as potent, supercharged serums. So when your skin feels especially dull and dehydrated, reach for this set of HA boosters: Crack one open each day, let your skin drink them up, and prepare for the dewiest glow. 

Hyaluronic Ampoules, Dr. Barbara Sturm ($145)

A blend of HA and antioxidants make up this silky serum, like strawberry fruit extract, vitamin E, astaxanthin, licorice root extract, and resveratrol. For more barrier-supporting benefits, it also features niacinamide and peptides—needless to say, this is one jam-packed formula.   

Multi Hyaluronic Antioxidant Hydration Serum, Allies Of Skin ($75)

Dry, dull skin no more: This lightweight serum contains a triple lipid complex to help replenish your skin's moisture barrier, as well as a trove of nourishing oils and antioxidant-rich botanicals. It puts in the work without ever feeling greasy or heavy; your thirsty skin will thank you. 

Barrier+ Triple Lipid-Hyaluronate Serum, Skinfix ($50)

Immersion is the perfect moniker for this number, as it sinks immediately into the skin upon application. So lightweight that you'll barely even notice it's there—but trust that the green tea leaf water, aloe, and hyaluronic acid base penetrate into your skin and plump it up with hydration. Beta-glucan, vitamin C, panthenol, and vitamin E also make a welcome appearance to brighten and even tone.

Immersion, Klur ($70)

This decadent serum uses the brand's signature grape water and polyphenols, along with the famed HA and olive-derived squalane for an instantly soothing experience. So cushiony and soft (never sticky!), you can reapply anytime you need an extra hit of hydration. 

Vinosource SOS Deep Hydration Serum, Caudalie ($49)

Triple the hyaluronic acid, triple the hydration—or, well, that's how it feels with this calming skin treatment. Use it on the daily, and your skin will feel supple and smooth; one shopper even compares it to "liquid gold." 

Instant Smoothing Serum, Grown Alchemist ($95)