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Polyglutamic Acid Serum
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Text on a white background explaining how to layer Polyglutamic Acid Serum in a skincare routine with steps listed.
Ingredients in Polyglutamic Acid Serum
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Polyglutamic Acid Serum
Person with text about Polyglutamic Acid Serum benefits

How to layer Polyglutamic Acid Serum in your routine. Step 1: Cleanse. Step 2: Hyaluronic Acid Serum. Step 3: Polyglutamic Acid Serum. Step 4: Eye Treatment. Step 5: Moisturize. Step 6: SPF

Text on a white background explaining how to layer Polyglutamic Acid Serum in a skincare routine with steps listed.
Ingredients 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

4.5
Rated 4.5 out of 5 stars
4.5 Stars (512 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

Compare with...

This Product
Polyglutamic Acid Serum

Polyglutamic Acid Serum

£15.00 / 30ml
4.5
Rated 4.5 out of 5 stars
4.5 Stars (512 Reviews)
Locking In Moisture & Surface Glow
  • Silky, cushiony serum that sits comfortably on skin and layers beautifully over your HA or actives.
  • Forms a moisture-locking veil on the skin's surface for longer-lasting hydration and a dewy finish.
  • Holds up to 4x more moisture than Hyaluronic Acid* whilst smoothing and softening skin texture.
  • Powered by Polyglutamic Acid + Hyaluronic Acid to seal in hydration and boost surface glow.
Ectoin Hydro-Barrier Serum

Ectoin Hydro-Barrier Serum

£16.00 / 30ml
4.6
Rated 4.6 out of 5 stars
4.6 Stars (447 Reviews)
Dehydrated & Compromised Barrier Skin
  • Lightweight, silky serum that melts in without tackiness for instant, all-day comfort.
  • Deeply hydrates whilst repairing the skin barrier, clinically proven to strengthen it in just 15 minutes.*
  • Shields against daily environmental stress (pollution, aircon, UV) and visibly restores bounce in 3 days.*
  • Powered by 2% Ectoin + 2.5% Multi-Molecular Hyaluronic Acid + 3 Ceramides to hydrate and rebuild resilient skin.
View Product

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Before results

Callie has used INKEY products for 2 years. She used Polyglutamic Acid in her routine with Salicylic Acid Cleanser, Hyaluronic Acid Serum, Glycolic Acid Toner, Succinic Acid Blemish Treatment, 15% Vitamin C & EGF, Symbright Moisturiser and Rosehip Oil to improve her skin.

Verified Purchase
4.5
Rated 4.5 out of 5 stars
Based on 512 reviews
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.
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512 reviews
  • carol r.
    Verified Buyer
    I recommend this product
    Age Range 65+
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Under Eye Circles, Puffiness
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 month ago
    Long time use

    I have been using this product for so long I am not sure I can adequately review the product. What I can is that the serum has been a regular product in my daily routine. I love the results I get with The Inky List products since the serum is part of my daily routine I definitely can recommend it

    Was this helpful?
  • Hillary W.
    Verified Buyer
    I recommend this product
    Age Range 45 - 54
    Skin Type Sensitive
    Skin Concerns Hyperpigmentation, Fine Lines and Wrinkles, Dryness
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 months ago
    Awesome Hydrator

    I love both the consistency and the results of this thicker than water serum. I put it on after my other watery serums and my face is more hydrated with consistent use. It has no fragrance and great ingredients.

    Was this helpful?
  • Ingo S.
    Verified Buyer
    I recommend this product
    Age Range 45 - 54
    Skin Type Normal
    Skin Concerns Plumping, Puffiness, Dryness, Under Eye Circles
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 months ago
    Great Product

    Make the job like it should 😀

    Was this helpful?

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