All products featured on Allure are independently selected by our editors.

However, we may receive compensation from retailers and/or from purchases of products through links in this article.

Do you hear a humming noise?

woman splashing water on her face

How to Know If Your Skin Is Dehydrated

Let’s start with the basics.

What does “hydration” mean in the context of skin?

In short, hydration means increasing the skin’s water content, says Christine Lee.

Best New Korean Beauty Products of July 2019: light blue jar of Aqualuronic Cream on a white background

These are all signs that the healthy biological processes of your skin are breaking down.

It’s for this reason that promoting hydration is one of the key tenets ofK-beauty.

“Thatchok choklookis very popular [in South Korea],” says Chang.

Image may contain: Bottle, Shaker, and Cosmetics

“Chok chokmeans moist and damp and hydrated all at the same time.”

So, the opposite of the qualities associated with dehydrated skin.

The Best Skin-Care Products for Hydration

The best offense is a good defense.

Dr. Dennis Gross Skincare Hyaluronic Marine Hydration Booster on a white background

And in this case, what we’re defending against is transepidermal water loss.

“Some water flux is really necessary for the skin to function normally.

But what you’re really trying to avoid is excessive water loss.”

Image may contain: Bottle, and Cosmetics

That said, the products that prevent transepidermal water loss most successfully are designed to replenish ournatural lipid barrier.

Chang also suggests reevaluatinghow you shower.

(Seriously, we’re really sorry.)

SkinMedica HA5 Rejuvenating Hydrator on white background

Dennis Gross Skincare Hyaluronic Marine Hydration Booster, which is loaded with tried-and-true hyaluronic acid.

“On [weekend] mornings, I love to get a really juicysheet maskgoing.”

Jenny’s Current Favorites

Jenny, too, has a thing for hyaluronic acid.

La Roche-Posay Hyalu B5 Serum on a white background

Her favorite is byCanopy: “My issue with humidifiers is always cleaning them out,” she says.

But since hydrated skin is healthy, glowing skin, your dedication certainly wont go unrewarded.

Image may contain: Cosmetics, Bottle, and Shaker

Image may contain: Cosmetics, and Bottle