Polyglutamic Acid Serum
Lock in moisture for smooth skin instantly
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.
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:
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All skin types
-
Sensitive skin
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Pregnancy & breastfeeding
Targets:
- Uneven skin texture
- Dehydrated skin
Compare with...
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Ectoin Hydro-Barrier Serum
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Hyaluronic Acid Serum - 60ml
Polyglutamic Acid Serum
- 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
- 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.
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Callie has used INKEY List 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 Moisturizer and Rosehip Oil to improve her skin.
- carol r.Verified BuyerReviewingPolyglutamic Acid SerumI recommend this productAge Range 65+Skin Type CombinationSkin Concerns Fine Lines and Wrinkles, Under Eye Circles, PuffinessHave you purchased an INKEY List product before? YesHow long have you used this product for? 3 months +Sensitive Skin Friendly? YesRated 5 out of 5 stars1 month agoLong 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
- Hillary W.Verified BuyerReviewingPolyglutamic Acid SerumI recommend this productAge Range 45 - 54Skin Type SensitiveSkin Concerns Hyperpigmentation, Fine Lines and Wrinkles, DrynessHave you purchased an INKEY List product before? YesHow long have you used this product for? 3 months +Sensitive Skin Friendly? YesRated 5 out of 5 stars2 months agoAwesome 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.
- Ingo S.Verified BuyerReviewingPolyglutamic Acid SerumI recommend this productAge Range 45 - 54Skin Type NormalSkin Concerns Plumping, Puffiness, Dryness, Under Eye CirclesHave you purchased an INKEY List product before? YesHow long have you used this product for? 3 months +Sensitive Skin Friendly? YesRated 5 out of 5 stars3 months agoGreat Product
Make the job like it should 😀
