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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 (496 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 moisturiser.

Suitable for:

  • All skin types
  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Uneven skin texture
  • Dehydrated skin

Shipping info

  • Standard EU Tracked Shipping €5.95 (2-5 business days*). FREE on orders over €45**.
  • **The following countries are subject to increased Standard Tracked Shipping rates and increased FREE shipping thresholds.
  • €6.95 - Denmark, Finland, Switzerland, Estonia, Luxembourg. FREE on orders over €45.
  • €8.95 - Spain, Portugal, Greece, Sweden, Croatia, Bulgaria, Romania. FREE on orders over €55.
  • €11.95 - Malta, Cyprus, Iceland, Serbia, North Macedonia, Bosnia & Herzegovina, Monaco. FREE on orders over €65.
  • Express EU Tracked Shipping €11.95 (up to 4 business days*, if ordered before 4pm CET on business days) 
  • *Please note the above shipping timelines are estimates and not guaranteed. Sometimes there may be delays – e.g. carrier delays, logistics, bad weather or things out of our control. Our team can be reached via our contact us page with any further queries you have.  
  • We are currently unable to ship to the following EU countries: Albania, Belarus, Faroe Islands, Georgia, Gibraltar, Kosovo, Liechtenstein, Montenegro, Norway, Republic of Moldova, Reunion, Turkey The Canary Islands or Ukraine 
  • Tariff or duties
  • Orders with EU shipping destinations won't be subject to any tariff or duties, however please note that there are a small number of EU and European territories that still require tariffs and duties that will need to be covered by the customer.
  • Find out more about shipping here.

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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 496 reviews
Total 5 star reviews: 342 Total 4 star reviews: 78 Total 3 star reviews: 32 Total 2 star reviews: 18 Total 1 star reviews: 26
Reviews Summary
Customers say this serum feels silky and smooth on the skin, providing excellent hydration that leaves skin soft, plump, and glowing. Many use it as a makeup base, noting it helps foundation apply more smoothly and last longer while maintaining hydration throughout the day. Users frequently pair it with hyaluronic acid for enhanced moisture-locking benefits. Several mention it works well for sensitive and dry skin types. Common concerns include a strong chemical or alcohol-like smell that some find off-putting, occasional pump malfunctions, and pilling issues when layered with certain products or makeup. Despite these drawbacks, most customers appreciate its lightweight texture and hydrating properties.
496 reviews
  • Shakira M.
    Verified Buyer
    Reviewing
    Polyglutamic Acid Serum
    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
    4 days 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
    Reviewing
    Polyglutamic Acid Serum
    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
    Reviewing
    Polyglutamic Acid Serum
    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.