What it is
Polyacrylate Crosspolymer-6 is a crosslinked acrylic polymer used as a thickener, gelling agent and rheology modifier, and it can also help stabilize emulsions. It is pre-neutralized, meaning that unlike some carbomers it does not need a strong base added after hydration to raise the pH. It produces transparent, rich, velvety gels and gel-creams and is prized for a smooth, cushiony, non-stringy sensory finish; at lower levels it can suspend particles and at higher levels it builds structure into a formula.
Safety & warnings
Large crosslinked polyacrylate thickeners of this type function at the surface of the skin and within the formula structure rather than penetrating, and they are used at low concentrations primarily for texture and stability. They are generally regarded as well tolerated in leave-on and rinse-off products, with the main practical considerations being formulation feel and compatibility rather than reactivity.
Origin & sourcing
It is a fully synthetic crosslinked polyacrylate polymer. It is marketed by the supplier Seppic under the trade name Sepimax ZEN, supplied in a pre-neutralized form that is noted for resistance to electrolytes, allowing it to thicken formulas containing salts.
Questions everyone asks
What does Polyacrylate Crosspolymer-6 do in a product?
It thickens and gels the formula and helps stabilize emulsions, giving a smooth, velvety, non-sticky texture; at low levels it can also suspend particles.
Is it the same as a carbomer?
It is a related polyacrylate thickener but is supplied pre-neutralized, so unlike some carbomers it does not require adding a strong base after hydration.
Who makes it?
It is produced by the ingredient supplier Seppic and sold under the trade name Sepimax ZEN.