Hyaluronic acid had a good run, but this 2026 underdog binds 4x more water—and it’s not even close. The Inkey List just dropped a Polyglutamic Acid serum that makes your $68 HA serum feel like a damp paper towel.
The science is stupid simple: PGA molecules sit on top of your skin like a cling film, dragging moisture from the air *into* your face. HA pulls from deeper layers—which can actually dehydrate you in dry climates. Oops.
It’s $14.99 for 30ml. The claim that made me roll my eyes: “4x more hydration than HA.” Then I put it on and my forehead stopped flaking by noon. That never happens.
Dew Point Tech
It only works when humidity is above 40%—so don’t blame the serum in Arizona, blame the sky.
Tacky Finish
It dries like a light glue. You *will* feel it. That’s the film doing its job.
Layering Order
Goes on *before* moisturizer, not after. Mixing it with oils breaks the film and you lose the magic.
Photo: Element5 Digital / Unsplash
No fragrance, no drying alcohols. Just a short ingredient list that reads like a hydration lab report—and that’s a good thing.
- Polyglutamic Acid: 5% concentration—the max that actually absorbs without peeling
- Glycerin: The workhorse humectant that keeps the moisture locked in
- Sodium Hyaluronate: Low-molecular HA that penetrates deeper than standard HA
- Propanediol: A skin-softener that prevents that sticky feeling
Photo: Content Pixie / Unsplash
It’s watery-goo. Think raw egg white but thinner. Absorbs in 10 seconds, leaves a faint sheen that fades after 60. Not greasy—just… present.
Two weeks in, my makeup sits better. No more powder clinging to dry patches. But here’s the weird part: my pores look *smaller*. Not clinically smaller, but the plumping effect pushes everything taut, so shadows stop collecting in the craters.
Photo: Element5 Digital / Unsplash
Fine lines around my eyes didn’t vanish. They looked *less angry* by day 4. The real win? My T-zone stopped producing enough oil to fry an egg by 2pm. Balanced, not dry.
Photo: freestocks / Unsplash
It’s not better than HA—it’s a *different tool* for a specific problem. But if your skin is thirsty and nothing quenches it, this is the shot glass you need. HA can sit this one out.