Skip to main content
Polyglutamic Acid Serum
Person applying lip product with text about Polyglutamic Acid Serum benefits
Text on a white background explaining how to layer Polyglutamic Acid Serum in a  skincare routine with steps listed.
Inredients in Polyglutamic Acid Serum
Hand with a pea-sized amount of Polyglutamic Acid Serum and text on how to use it.
Before and after comparison of a woman's face with a neutral background

Polyglutamic Acid Serum

Lock in moisture for smooth skin instantly

4.4
Rated 4.4 out of 5 stars
4.4 Stars (462 Reviews)
$21.50 / 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 moisturiser.

Suitable for:

  • All skin types
  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Dehydrated skin
  • Uneven skin texture

Shipping info

Standard tracked shipping

  • FREE on orders over $50
  • (2-8 business days)

No import duties or fees - Your order will ship domestically from our Canadian warehouse so you can shop with confidence knowing your order will arrive quickly without extra costs

*Find out more about shipping here.

Track the status of your parcel with
our trusted couriers

Compare with...

This product

Have you tried?

This product

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.

Still not sure?

Take our Skin Quiz, choose your personalized routine and get FREE products.

Take The Quiz
4.4
Rated 4.4 out of 5 stars
Based on 462 reviews
Total 5 star reviews: 316 Total 4 star reviews: 76 Total 3 star reviews: 33 Total 2 star reviews: 16 Total 1 star reviews: 21
Reviews Summary
Customers say this serum feels silky and hydrating on the skin, leaving it soft and plump. Many appreciate its lightweight texture and use it as a makeup base, noting it helps foundation apply smoothly and last longer. Users frequently layer it with hyaluronic acid for enhanced moisture retention. While most praise its effectiveness for dry and sensitive skin, several mention a strong chemical or alcohol-like scent. Some report pilling issues when layered with certain products, and a few experienced pump malfunctions. Common feedback includes its versatility for mixing with foundation and its ability to create a dewy, glowing finish.
462 reviews
  • Cyndi T.
    Verified Buyer
    I recommend this product
    Age Range 55 - 64
    Skin Type Sensitive
    Skin Concerns Fine Lines and Wrinkles, Plumping, Dehydration
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 5 out of 5 stars
    Yesterday
    Feels great

    Feels great on my sensitive skin. Great price for making my skin feel like velvet

  • Rosa M. P.
    Verified Buyer
    I recommend this product
    Age Range 65+
    Skin Type Dry
    Skin Concerns Fine Lines and Wrinkles, Dehydration, Dryness, Hyperpigmentation, Under Eye Circles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    6 days ago
    Polyglumatic Acid Serum

    Love it

  • Lien F.
    Verified Buyer
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Texture, Blackheads, Fine Lines and Wrinkles
    Rated 5 out of 5 stars
    1 week ago
    perfect for makeup

    i usw it as a base for my makeup. love it. Makeup applies move smoothly and lasts longer. skin stays hydrated.