Everyone’s screaming about polyglutamic acid holding 4x more water than hyaluronic acid. Cool. But if you swap HA for PGA outright, you’re doing it wrong.
The real magic is stacking them — PGA on top acts like a cling-wrap lid, sealing the HA underneath so it can’t evaporate into your dry bedroom air.
The Inkey List sells this for around $12. It’s a basic, no-frills dropper bottle that claims to plump fine lines by trapping moisture. That claim is boring. The texture is not.
Tacky Finish
Dries down like hair gel — not sticky, but you know it’s there. That’s the film working.
Slippery Base
Slides over damp skin like a wet bar of soap. You need to pat, not rub.
Layering Logic
It’s not a moisturizer. It’s a bouncer — it keeps the good stuff inside the club.
Photo: Rosa Rafael / Unsplash
It’s essentially a one-hit wonder. The hero is sodium polyglutamate, a fermented soybean derivative that forms a flexible film. It’s joined by glycerin for extra humectant pull, but there’s no HA here — that’s intentional, so you can layer your own.
- Sodium Polyglutamate: Creates a water-trapping film on skin’s surface
- Glycerin: Draws moisture from the air into that film
- Caprylyl Glycol: Keeps the texture from feeling like snot
- Propanediol: Helps everything penetrate without a greasy slip
Photo: Fleur Kaan / Unsplash
First pump: it’s watery, almost like a toner. Then it tightens as it dries — not in a “my face is shrinking” way, but in a “skin stretched over a balloon” way. You feel it working. That’s rare.
Two weeks in, my forehead lines looked less like creases and more like soft shadows. The weird part? My sunscreen stopped pilling. The film holds everything in place.
Photo: Rosa Rafael / Unsplash
My skin felt bouncier for about 6 hours. The “plump” effect faded by evening, but the overall texture stayed smoother. It didn’t fix my flaky nose overnight — that took 4 days of consistent layering under moisturizer.
Photo: Laura Chouette / Unsplash
It’s not a standalone miracle, but it’s the best cheap sidekick your skincare routine can have. Buy it, layer it over HA, and call me in the morning.