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(Instead, they help replenish and protect the skin barrier.)

A collage of Allure editors after applying their favorite hydrating serums

Collage: Gabrielle Castrillon; Source images:Allureeditors

Meanwhile, humectants likehyaluronic acidpenetrate deeper and bind water onto the skin for a more significant result.

), but hydrating formulas like the ones below reign supreme in our dryness-reducing skin-care routines.

Check out our favorites below.

SkinCeuticals HA Intensifier Multi-Glycan in branded component with best of beauty seal in the top right corner on a light gray background

Alluresenior editor Jesa Marie Calaor applying the SkinCeuticals HA Intensifier Multi-Glycan

This is by far the easiest and most comforting serum I’ve used.

At the time of writing, the updated pump packaging (yay!)

That, along with tripeptides and marine glycoprotein, floods my skin with hydration and noticeably plumps my skin.

A bottle of Superegg Tonal Scenery Serum on a light gray background

Allurecommerce editor Sarah Han applying Superegg Tonal Scenery Reparative Serum

retinol) serum at nighttime.

dose of Wellages soothing formulation without any oiliness left behind.

Tester feedback:Wellages Real Hyaluronic Blue Ampoule is like blue Gatorade for your face, saysAllurecontributorDevon Abelman.

Wellage Real Hyaluronic Blue Ampoule in branded component on a light gray background

Allurecontributor Devon Abelman applying the Wellage Real Hyaluronic Blue Ampoule

No matter how much I put on though, it always leaves my skin bouncier and glossier.

I think I might need a lifetime supply of this.

Tester feedback:This isn’t any run-of-the-mill HA serum.

Torriden Dive In Hyaluronic Acid Serum in branded component on a light gray background

Han applying the Superegg Tonal Scenery Reparative Serum

I run out pretty quickly.

Give me a jumbo bottle, c’mon, and thanks!

Which ingredients are actually hydrating?

Avene Hydrance Boost Concentrated Hydrating Serum in branded component on a light gray background

All those oils marketed as hydrating?

Um, totally untrue, asoils are hydrophobic, meaning they repel water.

Instead, look for ingredients labeled as humectants, like hyaluronic acid.

Vichy Mineral 89 Hyaluronic Acid Booster Serum and Gel Moisturizer in branded component on a light gray background

This humectant has become the crown jewel of hydrating ingredients simply because it performs well.

Like hyaluronic acid, glycerin is another water-attracting humectant that leaves skin with a supple feel.

Glycerin can actually signal your superficial skin cells to mature more rapidly," she explains.

Aestura Ato Barrier 365 Hydro Cera-Ha Serum in branded component on light gray background

We review ingredients, scrutinize brand claims, and, when necessary, examine peer-reviewed scientific and medical studies.

To learn more information on our reporting and testing processes, read our completereviews process and methodology page.

Our staff and testers

A beauty product is a personal purchase.

Clinique Moisture Surge Active Glow Serum in branded component on a light gray background

Can we honestly deem a high-end diffuser worthy of your hard-earned cash if its never been tested on curls?

La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum in branded component on a light gray background

Cetaphil 48 Hour Hydrating Serum in branded component on a light gray background