Skincare glossary
Polyglutamic acid
A humectant that attracts and holds water in the skin.
- Who it suits
- Extra hydration on top of an existing routine.
Why is polyglutamic acid used?
Added alongside or instead of hyaluronic acid to boost the hydration and plumping effect.
Worth knowing
It's not simply “better hyaluronic acid”. If your moisturiser already hydrates well, you may not need it as a separate step.
