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The Power of Glycerin: The Ultimate Skin-Care Ingredient for Hydration

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The Power of Glycerin: The Ultimate Skin-Care Ingredient for Hydration featured image
Photo Credits: Courtesy of Brands

If skin-care ingredients were people, glycerin would be the fun, popular friend who’s good at everything. Glycerin’s powerful hydration ability makes it a key ingredient in moisturizers, and it’s found in tons of other skin-care products from cleansers to pore minimizers to lip balms. So, where does glycerin come from, and what role does it play in skin-care?

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Where does it come from?

According to cosmetic chemist Perry Romanowski, most glycerin is naturally derived from plant fats during the soap-making process called saponification. In saponification, natural oils (usually from vegetables) are combined with lye, the chemical reaction produces both soap and glycerin. 

How does it work?

According to Montclair, NJ, dermatologist Jeanine Downie, MD, glycerin is a humectant, a type of moisturizing agent that pulls moisture out of the air and into your skin. “In skin care, it hydrates the skin, decreases fine lines and wrinkles and alleviates dry, itchy skin. It’s also good for the hair and the nails, especially for moisturizing the cuticles,” she says.

New York dermatologist Dennis Gross, MD explains that glycerin goes deep into the skin to provide this moisture. “Because of its small molecular size, it is able to penetrate deep into the skin for hydration benefits in both the epidermis and dermis,” he says. “Glycerin also has occlusive properties —it helps create a barrier on the skin’s surface that enhances the moisture barrier and prevents moisture loss.”

As New York dermatologist Jody Levine, MD explains, it also aids in wound healing, so it’s great to use on the face or body after a skin injury or even after a procedure.

Where is it found?

“Glycerin is found in many skin-care products including moisturizers and shaving creams,” says Dr. Levine. According to Dr. Downie, it’s also found in shampoos, conditioners, nail products, lotions and anti-aging products. Romanowsksi explains that glycerin is found in makeup, too: “It helps foundation and other liquid cosmetics stay flexible and crack-free,” he says.

Dr. Gross explains that glycerin is usually a supporting agent found lower on the list of ingredients for its low concentration in the formulas. “While it is a great supporting ingredient, it is usually not the star of a product for a reason. There are simply better ingredients that are able to target specific skin issues.”

Who should use it?

Romanowsksi notes that glycerin is non-comedogenic, so it won’t clog the pores or cause breakouts, but Dr. Downie says it’s best to use on the face if you’re not prone to acne. “That’s because too much glycerin can slow absorption and make the skin greasy, which is not ideal for acne-prone skin. It’s important to use it sparingly.”

According to Dr. Gross, as long as the product lists glycerin in low concentration, it should be fine to use daily without overloading the skin. “Glycerin is typically lower on the ingredient lists for products because it has a sticky texture,” he says. “You really shouldn’t run into an issue if you are using a clinically formulated product as directed. Needless to say, I wouldn’t recommend smothering your skin in pure glycerin.”

This also makes it great for sensitive skin, Romanowsksi explains. “It’s very unlikely to trigger irritation, especially in the relatively low concentrations used in skin care.”

Skin-Care Favorites

1 / 10

Chanel Sublimage L’Extrait De Nuit ($800)

Chock full of plant peptides and stem cells, this luxurious nighttime serum helps rejuvenate skin overnight for a more plump, hydrated complexion come morning.

2 / 10

Drunk Elephant T.L.C. Framboos Glycolic Resurfacing Night Serum ($134)

With an abundant amount of glycerin—along with glycolic, lactic, tartaric and salicylic acids—this product works for all skin types. After washing your face, apply this serum on at night to wake up with supple and radiant skin. 

3 / 10

The Ordinary Natural Moisturizing Factors + HA ($13.50)

This oil-free hydrating moisturizer delivers a double benefit by protecting and caring for the skin at the same time. 

4 / 10

Eau Thermale Avene Skin Recovery Cream ($36)

Designed for sensitive skin, this hydrating moisturizer heals and treats skin’s outer layer while preventing future irritation and fine lines. 

5 / 10

SkinCeuticals Triple Liquid Restore 2:4:2 ($150)

To add brightness and life to the skin, this blend of glycerin, vitamin E and antioxidants does just the trick. Upon application, it dissolves quickly into the skin and with daily use, you’ll see a significant difference in your skin’s moisture and texture.

6 / 10

Aesop Rejuvenate Intensive Body Balm ($100)

The non-greasy, light texture of this product contradicts the common misconception of body lotion being heavy and uncomfortable. Glycerin goes hand in hand with macadamia and sandalwood to create a luscious balm that quenches parched skin.

7 / 10

Paula’s Choice Enriched Calming Toner ($23)

Formulated to remove makeup, cleanse and hydrate, this glycerin-based toner improves skin’s defenses against environmental variables, stress hormones, collagen loss and of course moisture.

8 / 10

Fièra Apple Stem Cell Cream ($35)

This anti-aging cream is designed specifically for women over 40 and relies on the winning combination of glycerin and hyaluronic acid to seal in moisture and deliver plump, hydrated skin.

9 / 10

Dr. Dennis Gross Hyaluronic Marine Hydration Booster ($72)

Seamlessly blending glycerin, hyaluronic acid, and water-rich marine algae, this serum packs a multi-hydrating punch to deliver smooth, supple skin.

10 / 10

La Roche-Posay Redermic R Retinol Eye Cream ($50)

Recommended for all skin types, this eye cream reduces dark circles and fine lines with pure retinol and relies on glycerin to deliver skin-safe moisture to the delicate area.

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