Polyglutamic Acid Serum

Meet hyaluronic acid's quieter, stronger cousin. The INKEY List Polyglutamic Acid Serum is a lightweight surface hydrator built on a 3% polyglutamic acid complex — the brand notes it can hold four times the moisture of hyaluronic acid — that plumps, smooths and sets up a flawless base for makeup.

What it actually does

• Locks hydration at the surface. According to The INKEY List, the serum forms a thin, breathable film over the skin that traps moisture beneath it instead of letting it escape.
• Plumps and smooths. With moisture sealed in, skin looks fuller and fine lines appear softened.
• Brightens and evens. The brand also credits the formula with brightening and evening the look of skin tone.
• Preps for foundation. That smooth, hydrated surface makes an excellent makeup base — one of the product's headline uses.
• Light enough for anyone. All four skin types are listed — normal, dry, combination and oily — and it's cruelty-free.

How to use

1. Use twice daily, morning and evening.
2. Apply a pea-sized amount to cleansed face and neck, keeping clear of the eye area.
3. Order matters: it goes after your other serums and before moisturiser.

Note: external use only.

Is it right for you?

Questions

Polyglutamic acid vs hyaluronic acid — what's the difference?

Both are hydrators, but they work at different levels. The brand states polyglutamic acid holds four times more moisture than hyaluronic acid and works at the surface, forming a breathable film that keeps water locked in the layers below.

Where does it go in my routine?

Last of your serums, right before moisturiser — AM and PM. Think of it as the seal over everything you applied before it.

Can I use it under makeup?

Yes — the brand highlights it as a perfect makeup base. Let it absorb before you go in with foundation.

How long does delivery take?

Delivery takes 3 to 21 working days, depending on availability.

Payment and returns?

We accept credit card, debit card, Instapay and mobile wallets — no cash on delivery. Returns apply to defective, damaged or expired items only, reported within 1 day of delivery; refunds are issued to the original payment method within 15–30 days.