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Prices in USD as checked on Sep 11, 2026, excluding shipping and tax unless the store states otherwise. Links are affiliate links; the price you pay is unchanged. 1 listing not shown (1 from sellers outside our retailer list).
The Inkey List Lactic Acid Serum
Rated 4.5/5 by 2,100 shoppers (retailer data).
Lowest price found
$8.76at
eBay
Checked Sep 11, 2026 · 2 stores compared
Discover the ultra hydrating powers of The INKEY List Polyglutamic Acid Serum. This new wonder skincare ingredient, derived from fermented Soybean works to intensively moisturise the skin.
Highlights
Discover the ultra-hydrating powers of The INKEY List Polyglutamic Acid Serum. This new wonder skincare ingredient, derived from fermented Soybean works to intensively moisturise the skin. If you are experiencing breakouts or tight, irritated skin this may actually be due to your skin being dehydrated. Polyglutamic acid can hold four times as much moisture as Hyaluronic Acid and is absorbed quickly into the skin. This innovation in hydrating technology features large molecules which form a film across the skin’s surface to lock in moisture while also acting as a humectant to attract water. The moisturiser helps to plump the skin, creating a dewy radiance while reducing the appearance of fine lines. The potent formula leaves your complexion feeling super hydrated with an effective 3% Polyglutamic Acid complex. Along with hydrating the skin, this multi-benefit acid also features brightening and anti-ageing properties. Use after your regular serums and moisturiser to seal in hydration and achieve soft, supple skin!
- Form
- Serum
- Size
- 30 ml
- Type
- Serum
- Effect
- Smoothing
- Benefit
- Hydrating
- For Men
- Yes
- Free Of
- Fragrance-free, Vegan
- Subtype
- Hydrating serum
- Texture
- Lightweight
- Contains
- Polyglutamic Acid
- For Kids
- No
- Age Range
- Adult
- Body Part
- Face
- Skin Type
- All skin types, Sensitive skin, Dry skin
- For Babies
- No
- Item Count
- 1
- Ingredients
- Polyglutamic Acid, Hyaluronic Acid
- Tattoo Care
- No
- Solution For
- Dry skin
- Suitable For
- Pregnancy & breastfeeding, Sensitive Skin
- Skin Concerns
- Dehydrated skin, Fine lines, Uneven skin texture
- Top Use Cases
- Makeup prep
- Typical Users
- Unisex
- Certifications
- Certified by The Vegan Society
- Key Ingredient
- Polyglutamic Acid
- Sustainability
- Vegan
- Use Highlights
- Multi-step System (last serum before moisturizer), Multi-step System (after hydrator)
- Night / Day Use
- Both
- Application Time
- AM & PM, AM routine
- Active Ingredients
- Polyglutamic Acid
- Application Method
- Apply a pea-sized amount
- Face Treatment Type
- Serum
- Included Components
- Lot Of 2, 2 identical items
- Highlighted Features
- Non-irritating
Product identifiers
- Brand
- The Inkey List
Manufacturer and retailer identifiers, as supplied by the listing. Use them to confirm you are comparing the same item.
Where these prices come from
- Stores compared
- 2
- Prices checked
- Sep 11, 2026
- Currency
- USD
- Listings not shown
- 1
- Category
- Beauty & Personal Care
Prices are gathered from retailer listings by our own tooling and shown with the date each was observed. They exclude shipping and tax unless the store states otherwise, and the retailer's checkout is the price that applies. Any rating shown on this page is the retailer's own, not ours.



