What it is
Polyglyceryl-6 stearate is a hydrophilic non-ionic emulsifier formed by esterifying stearic acid with hexaglycerin. It stabilizes oil-in-water emulsions and is frequently combined with the more lipophilic polyglyceryl-6 behenate to form smooth, stable creams. It is widely used in gentle, sulfate-free sunscreen formulations and adds a soft skin feel.
Safety & warnings
Polyglyceryl esters are generally mild and well tolerated, with a low likelihood of irritation, which is why they are common in sensitive-skin and sulfate-free products.
Origin & sourcing
Synthetic ester typically made from glycerin (which may be plant-derived) and stearic acid from vegetable or other fat sources.
Questions everyone asks
What is polyglyceryl-6 stearate used for?
It is a gentle non-ionic emulsifier that keeps oil and water blended in a stable cream while contributing a soft emollient feel.
Is it a sulfate?
No. It is a polyglycerol fatty-acid ester, not a sulfate, and is often chosen specifically for sulfate-free formulas.