Polyglutamic Acid for Beautiful Skin

Brittan Bates

Global Brand Storytelling

4 min read

Skincare Education

Is polyglutamic acid better than hyaluronic acid? It may just be. We take a look at its uses, benefits, and how to incorporate it into your beauty routine.

Polyglutamic acid in Lotus Resurfacing Serum

We all know the importance of moisturizing your skin, and if you need a little extra, the general recommendation is to add hyaluronic acid to your daily routine. But the skincare industry is a place of evolution and innovation, and recent evidence suggests that polyglutamic acid may be even more effective when it comes to keeping your skin hydrated and moisturized. So, what is polyglutamic acid, how do you use it, and what benefits does it offer? Let's find out.

What is polyglutamic acid?

Polyglutamic acid (PGA) is a naturally occurring polymer produced by a gram-positive bacteria, Bacillus, that can be found in soybeans, potatoes, and fermented soy products. It is a water-soluble peptide that has a similar structure to hyaluronic acid and is often referred to as its super-cousin. It is used in skincare products for its excellent moisturizing properties, as it is known to be able to hold up to four times more moisture than hyaluronic acid.


Polyglutamic acid has also been shown to have antioxidant properties, making it an ideal ingredient in anti-aging products. Additionally, it is said to be able to encourage collagen production in the skin, resulting in firmer and smoother skin. The unique molecular structure of polyglutamic acid also makes it a suitable ingredient for creating a protective barrier on the skin, preventing damage from external factors like pollution, UV rays, and harsh weather. It is especially beneficial for those with dry or mature skin types, as it helps to reduce the appearance of fine lines and wrinkles while also providing deep hydration.


How to use polyglutamic acid in skincare

In skincare, polyglutamic acid works well alongside other ingredients, particularly other humectants – such as hyaluronic acid, glycerin, and panthenol – for ultra hydration, and antioxidants – like vitamins A and C – for anti-aging results.


Most commonly found in serums, like our Lotus Youth Preserve Resurfacing Dream Serum, it has been found to be most effective at low concentrations. You’ll also reap all the moisturizing benefits in products like moisturizers, toners, gels, and creams.


Polyglutamic acid benefits

Boasts powerful moisturizing capabilities

Like hyaluronic acid, polyglutamic acid is a humectant. These are powerful moisturizing agents that attract water to the skin and seal it in for surface-level hydration and protection. Its large molecule size makes it highly efficient at creating a protective barrier on the surface of the skin. Furthermore, it has been shown to increase the skin’s production of carboxylic acid, lactic acid, pyrrolidone, and urocanic acid, which are natural moisturizing substances.


Minimizes the appearance of fine lines and wrinkles

Dehydration enhances the appearance of wrinkles and fine lines. It can also cause itchiness and dull, tired-looking skin. By attracting moisture to the skin and locking it in, polyglutamic acid has the potential to brighten and plump your skin. Not only does this look better and feel more comfortable, but it also ensures your makeup application is smoother and has less creasing and caking.


Improves skin texture

Products with polyglutamic acid not only moisturize the skin but also help to exfoliate dead skin cells, resulting in smoother and softer skin. In addition, polyglutamic acid can enhance the production of collagen, promoting firmer and more elastic skin. Adding polyglutamic acid to your skincare ritual can thus improve the overall appearance and texture of your skin.


Benefits all skin types

Dry skin isn't the only skin type that benefits from polyglutamic acid-enriched skincare. Adequate moisturization is essential for all skin types – it may even balance oil production for those with oily or combination skin by stopping the oil glands from having to work overtime in an effort to moisturize the skin. Found in toners, serums, and moisturizers, polyglutamic acid is a helpful addition to any skincare routine.


May support wound healing

While research is still in its early stages, a few studies have shown that polyglutamic acid, when applied to minor wounds, showed a greater regeneration of blood vessels, as well as an increase in collagen production and a decrease in pigmentation. This is especially exciting for those with acne-prone skin.


Polyglutamic acid vs. hyaluronic acid

Before you throw your hyaluronic acid products away, read this. Though studies have shown PGA has slightly more hydrating power than hyaluronic acid, these two humectants actually work exceptionally well in combination. When used together, hyaluronic acid will work on the deeper layers of the skin for long-term hydration, helping to nourish, oxygenate and tone your skin, while polyglutamic acid will form a protective layer on the surface of your skin to prevent moisture loss.


So using the Rose & Hyaluronic Acid Deep Hydration Toner, for instance, and following with the Lotus Youth Preserve Resurfacing Dream Serum, will provide an ultra-moisturizing experience for your skin and a brighter, more youthful appearance.


Get the best for your skin at fresh

Polyglutamic acid is an incredibly versatile ingredient that offers many benefits for the skin. It is gentle yet effective and is suitable for all skin types, especially those with dehydrated skin. If you're looking for a powerful ingredient that can help to hydrate and rejuvenate your skin, polyglutamic acid may be the perfect addition to your skincare routine.


For more sensorial products with proven benefits, shop fresh. From anti-aging creams to oil-balancing emulsions to soothing serums, our products are safe and effective and, most importantly, tailored to your skin's needs.

Author Profile
blog author Brittan Bates

Brittan Bates

Global Brand Storytelling

Written by Brittan Bates for Fresh. Brittan is an NYC-based writer, editor, and storyteller with 9 years of experience spanning digital and print journalism, copywriting, brand strategy, and more. Her work has appeared in publications such as Teen Vogue and brands including Diane von Furstenberg, abc carpet & home, FRĒDA SALVADOR, and more.