The Benefits of Polyglutamic Acid in Skincare
Brittan Bates
Global Brand Storytelling
4 min read
Learn about polyglutamic acid & its benefits for skincare routines.
Although hyaluronic acid, known for its moisturising properties, is one of the popular skincare acids, it’s not the only one. Recent developments suggest that polyglutamic acid, as an ingredient in skincare products, may be more effective than hyaluronic acid.
If you’re wondering what polyglutamic acid is, come with us as we explore it further. Keep reading to find out how to incorporate it into your skincare routine to enjoy its multiple benefits.
If you’re asking yourself, “What is polyglutamic acid?” we have the answer. Simply put, polyglutamic acid (PGA) is a group of amino acid molecules from the gram-positive bacteria Bacillus, commonly found in fermentation processes.
Polyglutamic acid is a humectant, and when incorporated into skincare products, it works to attract and lock moisture into the skin. Additionally, it boosts the skin’s ability to produce moisture in the cells.
Other humectants that have similar abilities include hyaluronic acid and glycerin. What makes PGA different and more preferred, however, is that it limits the breakdown of hyaluronic acid in the skin, making it even more effective.
Polyglutamic acid for the skin can be presented in many ways because it can work in combination with other products. It’s often paired with other humectants, but it can be used alongside antioxidants to fight signs of ageing.
It’s typically used in serums, such as our Lotus Youth Preserve Resurfacing Dream Serum. It’s powerful enough to get the job done at concentrations as low as 0.1%.
Polyglutamic acid is also contained in moisturisers, toners, gels, lotions, and creams and can also be used in supplement form, but research on this is still ongoing.
Like all skincare products, you need to apply it correctly for best results. It’s best to start with products with the thinnest consistency and work your way through to the thickest. Begin with cleansing and toning your face, then apply your serum with ingredients such as polyglutamic acid and vitamin C. Thereafter, apply your thicker products like moisturisers and eye cream to lock in all of the benefits of the products applied prior and create a protective barrier.
Here are five reasons why you should include polyglutamic acid-containing products into your skincare regimen.
Because polyglutamic acid is a humectant, it moisturises by attracting water to the skin and then retaining it for ultimate hydration. It’s proven to have a larger molecular size than most other humectants, which makes it more effective.
Moreover, it works to increase the skin’s production of carboxylic acid, lactic acid, pyrrolidone, and urocanic acid, all of which occur naturally and offer moisturising benefits.
When skin lacks water, it can age quicker — the loss of moisture and plumpness makes wrinkles, pores, and fine lines more visible. Polyglutamic acid can reduce these by helping the skin retain moisture and avoid dehydration.
When the cells are hydrated, the skin looks and feels smoother.
Polyglutamic acid complements other naturally occurring hydrating substances produced by the skin. Firstly, it inhibits the enzyme that decreases production and increases the breakdown of hyaluronic acid. It increases the production of several moisturising substances at cellular levels, and, as a result, skin is more hydrated, feels rejuvenated, and can have a more youthful appearance.
Although people with dry skin may gain the most benefit from products with polyglutamic acid, its hydrating properties make it suitable for all skin types. It can be used in conjunction with various ingredients, particularly when found in toners, serums, moisturisers, and other skincare and beauty products for different skin types.
“Is polyglutamic acid safe?” is a question that many beauty and skincare enthusiasts have asked. The answer, in short, is yes. Studies have proven that polyglutamic acid may also be beneficial in healing wounds. It appears that when PGA was applied to wounds, there was a greater regeneration of blood vessels, increased collagen, and less pigmentation. Research into its wound-healing capabilities is ongoing, however.
Although both PGA and hyaluronic acids are essential for hydrating the skin, more and more studies suggest that PGA has a slightly stronger effect, as it also protects the hyaluronic acid that occurs naturally within the skin.
Fortunately, these two acids work well together as skincare and beauty ingredients, meaning that your skin will only benefit from using products with one or both ingredients.
At fresh, we have a range of skincare products that put your skin first. From serums to anti-ageing products, you’ll be able to find just what you need here. Rooted in safe and sensorial skincare products, our approach entails effectively mixing modern science with ancient rituals to help you achieve visibly healthier and radiant skin every day.
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.