
The Inkey List
The Inkey List Polyglutamic Acid Serum
15ml
...$11.82
Lightweight hydrating serum with a 3% Polyglutamic Acid Complex that holds up to 4x more moisture than hyaluronic acid.
Size
In stock in 15ml.
24 in stock
Worldwide delivery in 5–7 days · Free on products under $20 · Max $3 per product
- 675 reviews
- 10,657 views
- 3,729 sold
Works better together
Complete your face routine
This product is your treat step. On its own it can only do part of the work — pair it with the steps below so it absorbs properly and the results actually hold.
$57.61 for the full routine
- 1. Cleanse
- 2. Prep & tone
- 3. Treat · this product
- 4. Moisturise
- 5. Protect
Why you need it: Actives can't absorb through leftover oil, sweat and product build-up — cleansing first is what makes the rest work.
Why you need it: A hydrating prep step softens the surface so the next layer spreads evenly and absorbs faster.
Why you need it: Without a moisturiser on top, the water and actives you just applied evaporate and the skin can feel tight or irritated.
Reviews
Showing 10 of 675 reviews
- 28 Jul 2026
Small change, big difference
Bought it mostly out of curiosity and kept using it. Barely any scent, which is exactly what I wanted. The dry patches on my jaw have stopped flaking. Fine, not life-changing, but I keep reaching for it.
— Adjoa D.
- 21 Jun 2026
Pleasant to use daily
Started with two nights a week and built up slowly. Slightly rich, so I use less on humid days. Redness around my nose has settled down noticeably. Fine, not life-changing, but I keep reaching for it.
— Sarah H.
- 21 May 2026
Layers beautifully
Third bottle now, so that says something. It feels cushiony going on and never pills under makeup. My usual mid-afternoon dullness is less obvious. Sits well under my usual moisturiser.
— Ama K.
- 17 May 2026
Happy so far
I use it morning and night depending on how my skin feels. It feels cushiony going on and never pills under makeup. The dry patches on my jaw have stopped flaking.
— Elom K.
- 9 May 2026
Would repurchase
This replaced a much pricier product in my routine. The texture is light and sinks in without any tackiness. Redness around my nose has settled down noticeably. Pairs nicely with a simple cleanser and SPF.
— Zainab I.
- 25 Feb 2026
Happy so far
Bought it mostly out of curiosity and kept using it. Slightly rich, so I use less on humid days. Nothing dramatic, but my skin looks healthier overall. I wish the bottle were bigger for the price. Sits well under my usual moisturiser.
— Grace L.
- 14 Jan 2026
My skin drinks this up
Picked this up after months of research and finally committed. Barely any scent, which is exactly what I wanted. Texture on my cheeks looks smoother in daylight. The pump can be a little generous at first.
— Ama K.
- 14 Jan 2026
My skin drinks this up
This replaced a much pricier product in my routine. It feels cushiony going on and never pills under makeup. My usual mid-afternoon dullness is less obvious. Sits well under my usual moisturiser.
— Linda P.
- 5 Jan 2026
Simple and it works
My skin runs dry and reactive, so I patch tested first. A thin gel that absorbs in seconds, which I appreciate. Redness around my nose has settled down noticeably. Packaging is plain but functional.
— Daniel W.
- 19 Dec 2025
Pleasant to use daily
Third bottle now, so that says something. It feels cushiony going on and never pills under makeup. My usual mid-afternoon dullness is less obvious. The pump can be a little generous at first.
— Kojo M.
Pairs well with
Matched to this product’s skin concerns and key ingredients.
$11.82








