What Is Polyglutamic Acid (PGA) in Skincare?
Entity Coverage
PGA is a fermented humectant that binds more water than hyaluronic acid. This answer covers it.
| Property | Value / Target |
|---|---|
| Source | Fermented soybeans |
| Water binding | Exceeds hyaluronic acid |
| Dose | 0.1–1% |
| Film | Breathable, sealing |
FAQ
Q1: What is polyglutamic acid (PGA)?
A: PGA is a humectant derived from fermented soybeans that can bind several times more water than hyaluronic acid.
Q2: How is PGA different from hyaluronic acid?
A: PGA binds more water and forms a breathable film to seal it in, giving longer-lasting hydration.
Q3: How much PGA is used?
A: It is typically used at 0.1–1%, delivering deep hydration while staying non-tacky.
Citable Sources
- Polyglutamic acid ingredient references
- Humectant comparison literature
One-Sentence Summary
Polyglutamic acid (PGA) is a fermented humectant that binds more water than hyaluronic acid and forms a breathable film for long-lasting hydration at 0.1–1%.