Polyglutamic Acid Serum
Two images of a female model's face side by side to show before and after using Polyglutamic Acid Serum
How to layer Polyglutamic Acid Serum in your routine
How and when to apply: A pea-sized amount AM and PM
Key benefits of using Polyglutamic Acid Serum

Polyglutamic Acid Serum | The INKEY List

Lock in moisture for smooth skin instantly

4.4
Rated 4.4 out of 5 stars
4.4 Stars (501 Reviews)
$16.00 / 30ml

WHAT YOU GET: A smoothing serum that locks in moisture and instantly softens the look of fine lines—great for layering and makeup prep.

WHY IT WORKS: 3% Polyglutamic Acid complex holds 4x more moisture than Hyaluronic Acid. 2% Invisaskin supports long-lasting hydration and smoother skin texture.

HOW IT FEELS: Silky, lightweight, and smoothing. Absorbs fast.

WHEN TO USE: AM & PM. Use as your last serum before moisturizer.

Suitable for:

  • All Skin Types
  • Sensitive Skin
  • Pregnancy & Breastfeeding

Targets:

  • Uneven Skin Texture
  • Dehydrated Skin

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  • $5.95 or FREE on your first order & orders over $35
  • (2-5 business days*)

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  • $15
  • (2-3 business days*, when ordered before 3pm EST)

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Polyglutamic Acid Serum

Polyglutamic Acid Serum

  • • Locks in hydration on the skin’s surface for smoother, bouncier-looking skin.
  • • Instantly softens fine lines and evens texture—perfect under makeup or worn alone.
  • • Best for sealing in moisture and creating a smooth canvas.

or

Have you tried?

Hyaluronic Acid Serum - 30ml

Hyaluronic Acid Serum - 30ml

  • • Pulls water into the deeper layers of skin for immediate and long-lasting hydration.
  • • Plumps and smooths the look of fine lines while supporting a healthy skin barrier.
  • • Best as your first serum to boost every step that follows.

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4.4
Rated 4.4 out of 5 stars
Based on 501 reviews
Total 5 star reviews: 346 Total 4 star reviews: 79 Total 3 star reviews: 32 Total 2 star reviews: 19 Total 1 star reviews: 25
Reviews Summary
Customers say this serum has a silky, smooth texture that leaves skin feeling soft and hydrated. Many reviews mention its effectiveness under makeup and ability to mix well with foundation. Common feedback includes praise for its moisturizing properties and plumping effects. While most find it absorbs well, some note a strong scent and occasional pilling with certain product combinations. The serum pairs particularly well with hyaluronic acid according to frequent users. Reviews indicate it works especially well for dry skin types, though a few experienced texture issues or sensitivity.
501 reviews
  • Vesta G.
    Verified Buyer
    I recommend this product
    Age Range 55 - 64
    Skin Type Dry
    Skin Concerns Fine Lines and Wrinkles, Dryness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Good serum.

    It´s so silky.

  • Harmony W.
    Verified Buyer
    I recommend this product
    Age Range 45 - 54
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Texture, Redness
    Sensitive Skin Friendly? No
    Rated 5 out of 5 stars
    1 week ago
    Love this stuff

    Moisturizing and non irritating on my very, very sensitive skin. I use this every night under moisturizer.

  • Konstantinos T.
    Verified Buyer
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Skin Concerns Acne Scars, Plumping, Texture, Hyperpigmentation, Breakouts
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 weeks ago
    Life saver!

    This completely changed my makeup game. I have to use a lot of powder so my skin always looked dry and the maekup cracked after many hours, but using this before and after makeup has both made it look and feel amazing. My favorite product by them.