The Inkey List Polyglutamic Acid Serum vs Vichy Minéral 89 Hyaluronic Acid Booster
Neither serum relies on a targeted treatment active; both are about comfort and skin support. They share Hyaluronic Acid, so texture, price and the rest of the formula decide it.
A hydration serum using polyglutamic acid, which holds even more water than hyaluronic acid, layered with HA. A lightweight, plumping hydrator that works well over or under HA; an affordable way to trial the ingredient.
89% Vichy mineralizing thermal water with hyaluronic acid in a light gel-serum. Not a heavy-hitting active product — it's a first-step hydrator. Comfortable under actives, useful for anyone finding fuller HA serums too tacky.
Which should you choose?
Both lean on Hyaluronic Acid for hydration and support. The Inkey List Polyglutamic Acid Serum adds Polyglutamic Acid. The Inkey List Polyglutamic Acid Serum is the better fit for dehydration; Vichy Minéral 89 Hyaluronic Acid Booster for a damaged barrier. On price, The Inkey List Polyglutamic Acid Serum is the less expensive option (Budget versus Mid-range).
What they share
This hero active appears in both formulas:
Ingredient stacks, side by side
The Inkey List Polyglutamic Acid Serum — top of the list
- Aqua~50–80%
- Polyglutamic Ac…~3–10%
- Sodium Hyaluron…~2–6%
- Panthenol~1–2%
Vichy Minéral 89 Hyaluronic Acid Booster — top of the list
- Vichy Minerali…~50–80%
- PEG-6 Caprylic…~2–6%
- Sodium Hyaluro…~1.5–4%
● marks ingredients that appear near the top of both lists. Percentages are positional estimates from INCI order, not disclosed doses.
The specs
| The Inkey List Polyglutamic Acid Serum | Vichy Minéral 89 Hyaluronic Acid Booster | |
|---|---|---|
| Category | Serum | Serum |
| Price tier | Budget | Mid-range |
| Best for | Dehydration, Dullness, Dryness | Dryness, Damaged Barrier, Dullness |
| Usage notes | Morning or evening | Morning or evening |
| Shared hero actives | Hyaluronic Acid | |
Common questions
Is The Inkey List Polyglutamic Acid Serum or the Vichy Minéral 89 Hyaluronic Acid Booster better?
What's the difference between The Inkey List Polyglutamic Acid Serum and the Vichy Minéral 89 Hyaluronic Acid Booster?
Are The Inkey List Polyglutamic Acid Serum and Vichy Minéral 89 Hyaluronic Acid Booster dupes for each other?
Can I use The Inkey List Polyglutamic Acid Serum and Vichy Minéral 89 Hyaluronic Acid Booster together?
Related comparisons
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