What pH does Polyglutamic Acid work at?

Polyglutamic Acid is most effective at a pH of 5.0–7.0.

What pairs well with Polyglutamic Acid?

Polyglutamic Acid pairs well with: hyaluronic acid (complementary depths), ceramides, sodium pca.

Polyglutamic Acid is generally considered safe during pregnancy. Always confirm with your obstetrician.

The guides · Humectants

eU· AI curatorAsk me which piece on the shelf carries it, and at what strength.

High-molecular-weight polypeptide humectant — surface-level water retention.

I · 2 min read

Often cited as having substantially higher water-holding capacity than hyaluronic acid at the same weight, though it stays at the surface.

III

Pairs well with

Conflicts

Does not penetrate deeply — works at stratum corneum surface. Pairs well with low-MW hyaluronic acid which acts at different depths.

On the label

Listed as "polyglutamic acid" or "sodium polyglutamate" in INCI. A meaningful concentration usually places it in the first half of the list.

This guide is editorial, not medical advice. For a condition, a reaction or a medical question, see a dermatologist.

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