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Polyglutamic Acid Serum
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Ingredients in Polyglutamic Acid Serum
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Polyglutamic Acid Serum

Lock in moisture for smooth skin instantly

4.4
Rated 4.4 out of 5 stars
4.4 Stars (507 Reviews)
£15.00 / 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 moisturiser.

Suitable for:

  • All skin types
  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Uneven skin texture
  • Dehydrated skin

Delivery info

Standard tracked delivery (Evri)

  • £3.99 or FREE on orders over £30. (2-5 working days*) 

Express tracked delivery (Evri)

  • £5.95 or FREE on orders £50+. (Up to 2 working days if ordered before 8pm, excluding weekends*)

*Find out more about delivery options and delivery area restrictions here.

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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.

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4.4
Rated 4.4 out of 5 stars
Based on 507 reviews
Total 5 star reviews: 359 Total 4 star reviews: 77 Total 3 star reviews: 31 Total 2 star reviews: 18 Total 1 star reviews: 22
Reviews Summary
Customers say this serum has a silky, smooth texture that glides easily onto skin. Many reviews mention enhanced hydration and a dewy, glowing finish. The product works well under makeup, with several users mixing it into their foundation for better application. While most praise its moisturizing effects, some note a strong scent and occasional pilling with other products. Common feedback includes soft, plump-feeling skin after use. A few users report issues with the pump mechanism, though most find the product's consistency ideal - neither too thick nor too thin.
507 reviews
  • Shakira M.
    Verified Buyer
    I recommend this product
    Age Range 25 - 34
    Skin Type Sensitive
    Skin Concerns Breakouts, Fine Lines and Wrinkles, Hyperpigmentation, Acne Scars, Texture
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 week ago
    Great hydration booster

    I use this on days where my skin feels rough and dull especially when I am under the weather. It's a great pick me up and adds an additional slip for skincare applied after.

  • Yolanda H.
    Verified Buyer
    I recommend this product
    Age Range 45 - 54
    Skin Type Sensitive
    Skin Concerns Redness, Under Eye Circles, Puffiness, Dryness
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 week ago
    Pleasantly surprised

    I love this for my daily moisturizer! It absorbs quickly, not sticky & the hydration is heavenly! Will be a staple in my routine!

  • Diane
    I do not recommend this product
    Age Range 55 - 64
    Skin Type Dry
    Skin Concerns Texture, Fine Lines and Wrinkles, Dryness
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1-3 weeks
    Sensitive Skin Friendly? Yes
    Rated 2 out of 5 stars
    3 weeks ago
    I don't see any difference

    Horrific chemical smell to start. Apply it before moisturizer as directed, but skin around my eyes seems to be getting more wrinkled and dry. Not sure if I will continue its use.