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The Inkey List Lactic Acid Serum

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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).

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$8.76at eBayeBay

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!

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