What it is
This polymer carries phosphorylcholine groups inspired by the structure of natural cell membranes, giving it strong water-binding ability. It forms a light, breathable moisturizing film that helps skin hold water and feel smooth and comfortable.
Safety & warnings
Considered very gentle and well tolerated, including by sensitive skin.
Origin & sourcing
Synthetic biomimetic polymer.
Questions everyone asks
What does polyquaternium-51 do?
It is a moisture-binding polymer that forms a light film to hydrate and protect the skin.
Why is it compared to cell membranes?
It carries phosphorylcholine groups similar to those in natural cell membranes, which gives it strong water-binding.