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Polyglutamic Acid Serum | The INKEY List

Lock in moisture for smooth skin instantly

Rated 4.4 out of 5 stars
4.4 Stars (352 Reviews)
£15.00 / 30ml


A powerful hydrator for the skin's surface, Polyglutamic Acid can hold 4x more moisture than Hyaluronic Acid, locking in moisture and helping the skin appear instantly smoother.

This 3% high molecular weight amino polymer is specifically designed to enhance skin moisturization on the surface. This smoothing serum helps to reduce the appearance of fine lines, as well as brighten and even skin tone. The lightweight silky texture of Polyglutamic Acid Serum creates a perfect make-up canvas.

Suitable for:

  • All Skin Types
  • Sensitive Skin
  • Pregnancy & Breastfeeding


  • Uneven Skin Texture
  • Dehydrated Skin

Proud to be:

  • Carbon Net-Zero
  • B-Corp
  • Cruelty Free
  • Recyclable
  • Vegan
  • Travel Size
  • Gluten Free
  • Fragrance Free

Awards & Features

Glamour Award

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Polyglutamic Acid Serum

Polyglutamic Acid Serum

  • • Suitable for all skin types.
  • • Locks in moisture and helps the skin appear instantly smoother.
  • • Helps to reduce the appearance of fine lines and even out skin texture, creating a perfect make-up canvas.


Have you tried?

Hyaluronic Acid Serum

Hyaluronic Acid Serum

  • • Suitable for all skin types.
  • • Provides instant and lasting hydration, leaving skin feeling plump, smooth and healthy.
  • • Helps to combat dry skin, improve the appearance of fine lines and helps maintain an effective skin barrier.

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Rated 4.4 out of 5 stars
Based on 352 reviews
Total 5 star reviews: 253 Total 4 star reviews: 47 Total 3 star reviews: 23 Total 2 star reviews: 14 Total 1 star reviews: 15
352 reviews
  • Rebecca S.
    Verified Buyer
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Dryness, Breakouts, Fine Lines and Wrinkles
    Rated 5 out of 5 stars
    8 minutes ago
    Love this!

    This always leaving my skin feeling and looking fresh and hydrated - I recommend it to everyone.

  • LIen De L.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 days ago
    Love it!

    I absolutely love this serum. I add it in the last step of my serums (dr jartt, the ordinary, paula's choice, inkey list, etc.) and it please wonderfully together with all the other serums. No pilling and instead a beautiful hydration!

  • Arianna B.
    Verified Reviewer
    I do not recommend this product
    Age Range 25 - 34
    Skin Type Dry
    Skin Concerns Dryness
    Rated 1 out of 5 stars
    1 week ago
    Broke me out.

    I have very dry sensitive skin and Hyaluronic Acid does nothing for me, so I decided to give this a try after seeing it on TikTok. Unfortunately as soon as I started using it I started having spots on the nose and chin. I resisted for a week but then I stopped. Unfortunately not for me.

    TI Profile picture for The INKEY List UK
    The INKEY List UK
    1 week ago

    Hello Arianna,

    Thank you for sharing your review and we're truly so sorry to hear this! Please do reach out to our askINKEY Team if we can support you further with this experience 🖤

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