11 Best Polyglutamic Acid Products of 2022

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Humectants are the name of the game for glowing, plump skin drawing in hydration and boosting collagen. We’ve all tried slathering our faces in serums, taking beauty supplements, really any way to get more, but what if I told you the humectants you’re using now only cover half the story. Mark my words, there’s an unsung hydrating hero waiting in the wings, ready to become the greatest humectant in skincare: enter polyglutamic acid.

Why you should use polyglutamic acid products

Sure, the ever-popular hyaluronic acid is fantastic for deep hydration, pulling moisture from your skin in dry climates. Yet, unlike common humectants, the best polyglutamic products seal in moisture with a larger molecule size that hydrates the surface layers of the skin. Working harder than even hyaluronic acid, polyglutamic acid (PGA) can hold four times more water creating a moisture barrier that softens fine lines and wrinkles. Best of all, polyglutamic acid also boosts your other skincare actives, locking in the product for more potent skincare formulations.

The best polyglutamic acid products

All that’s left is to pick the right polyglutamic acid product to tackle hydration from all angles. Luckily we’ve already cherry-picked a few of the best serums, moisturizers and toners with this goodie ingredient.


The Inkey List Polyglutamic Acid
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The Inkey List Polyglutamic Acid

Adding polyglutamic acid to your routine has never been easier thanks to The Inkey List, offering a no-fuss concentrated serum with 3% PGA — the highest on the market. Fans love this product as a makeup base or post routine occlusive, boasting all-day soothing hydration and a decent dose of texture softening silicone. This is just the best polyglutamic acid serum for those looking to enjoy this active’s full potential as a standalone ingredient.


Kate Somerville Wrinkle Warrior
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Kate Somerville Wrinkle Warrior 2-In-1 Plumping Moisturizer + Serum

This anti-aging serum’s effective hydration strategy has two secret weapons: hyaluronic acid and PGA! Remember how hyaluronic acid lacks surface-level hydration; add it to a polyglutamic acid serum and your skin will be glowing for days. Even more, this wrinkle-buster plumps fine lines and wrinkles with an extra kick from Sichuan pepper for immediately noticeable results.


Biossance Squalane + Copper Peptide Rapid Plumping Serum
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Biossance Squalane + Copper Peptide Rapid Plumping Serum

Here’s another best polyglutamic product: a serum made by Biossance that loads a powerful trio of hydrating ingredients including hyaluronic acid, PGA, and squalane. They provide instant and long-lasting moisture for dehydrated skin while plumping fine lines and wrinkles look. On top of everything, the serum was also built around copper peptide to support collagen production for a bouncier and firmer complexion. This is what we call a winner product.


Glow Recipe Plum Plump Hyaluronic Moisturizer
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Glow Recipe Plum Plump Hyaluronic Moisturizer

Written in bold letters on the jar, Glow Recipe Plum Plump advertises what this moisturizer is all about. Antioxidant-rich plum, barrier boosting willowherb, and a complete package of hydrating polyglutamic acid and hyaluronic acid ensure a happy, balanced, and glowing complexion. With a whipped gel consistency, the super soothing formula hydrates thirsty skin without weighing you down for a plump, bright complexion, making out of this one of the best polyglutamic acid creams.


Youth To The People Triple Peptide + Cactus Oasis Serum
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Youth To The People Triple Peptide + Cactus Oasis Serum

Look no further for the greatest possible amount of humectants in one product. With four kinds of hyaluronic acid, PGA, and skin-perfecting prickly pear, this fragrance-free serum replenishes structure and hydration at every level. In other words, it’s the best polyglutamic product for a youthful bounce that works hard to restore skin elasticity and fill wrinkles and fine lines.


Charlotte Tilbury Magic Serum Crystal Elixir
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Charlotte Tilbury Magic Serum Crystal Elixir

Believe me when I say this luxury serum smells amazing; the inviting citrusy scent hints at some of its power actives like vitamin C and pore-reducing niacinamide. Besides, it’s packed with splurgy ingredients like moonstone, ruby, quartz, and amethyst, to add radiance and leave skin feeling fresh and hydrated. There’s a long list of super-stars to this milky serum, but be careful as it may overwhelm more sensitive skin types.


Acure Brightening 2% Alpha Arbutin Serum
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Acure Brightening 2% Alpha Arbutin Serum

Keeping in line with their simple, effective formulas, Acure brings a recipe for healthier skin with potent anti-agers that not only speed up the healing process and battle uneven tone but deliver a dose of hydration as well. Rich in melanin fighting antioxidants like alpha-arbutin and elderberry extract, the serum helps protect from skin-ravaging free radicals with PGA further bolstering natural barriers. Simply put, this best polyglutamic acid serum illuminates skin and improves texture with gentle resurfacing brighteners to reveal a fresher look. 


Innisfree 9 Solutions Toner
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Innisfree 9 Solutions Toner

A thick gel texture helps lock in this best polyglutamic product’s plant-powered goodness, with nine powerful anti-agers including Jeju mushroom — the god’s elixir of youth. A pretty mighty claim to live up to, these traditional K-beauty remedies, rich in beta-glucan, promise to calm sensitive skin and boost collagen with a rich hydrating formula, perfect for dry climates or dehydrated winter skin.


Lily Sado Tea+C Green Tea + Vitamin C Moisturizer
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Lily Sado Tea+C Green Tea + Vitamin C Moisturizer

The cutest packaging in the world and a scrumptious list of vegan, organic ingredients like matcha and licorice root have me hoping the line will soon start selling baked goods. For now, we can enjoy the deliciously soft texture of the best polyglutamic product for anyone looking for an all-natural, earth-friendly option. The super intense hydration absorbs quickly into skin, with even beauty lovers hailing the product as vitamin C, aloe, and jojoba works hard to keep the complexion balanced. Keep an eye out; both affordable and popular, this moisturizer tends to sell out!


Mediheal N.M.F Intensive Hydrating Mask
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Mediheal N.M.F Intensive Hydrating Mask

An impressive feat in the ultra-competitive world of K-beauty, Mediheal’s exfoliating and hydrating mask is well worth the rave. NMF or natural moisturizing factors are all the healthy fats, peptides, and acids that keep skin looking gorgeous and hydrated. It should be no surprise that this NMF mask, chocked full of humectants like hyaluronic acid and PGA, is a godsend for dry, sensitive skin. Some beauty lovers even religiously use this mask daily, praising the non-slip cotton material that can hang on during daily chores.


it Cosmetics Bye Bye Under Eye Eye Cream
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it Cosmetics Bye Bye Under Eye Eye Cream

Like all the best polyglutamic products, It Cosmetic’s super gentle cream helps reinforce the protective barrier to improve fine lines and boost collagen production. Bonus ingredients like cucumber and caffeine work to de-puff and brighten the under-eye area, while the cream’s unique blue tint reduces the appearance of dark circles. Fans love the rapidly absorbing lush texture of the polyglutamic acid cream, making it a great base to prep for concealer.


The takeaway

Polyglutamic acid is a standout element by itself, but especially when used in conjunction with other effective skincare ingredients and products that increase skin hydration. The best polyglutamic acid products maximize these synergistic effects by employing many humectants and anti-agers to strengthen their formulation’s multi-layer hydration and improve uptake of other actives. They are a must for those struggling with damaged skin barrier, helping lock in hydration that other humectants can’t.

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