What it is
Polyglyceryl-2 stearate is a mild non-ionic emulsifier formed by esterifying stearic acid with diglycerin. It helps blend the oil and water phases of a sunscreen into a stable cream or lotion and contributes a soft emollient feel. As a polyglyceryl ester it is frequently chosen for sulfate-free and gentle-formula positioning.
Safety & warnings
Polyglyceryl esters are generally regarded as mild and well tolerated, with a low likelihood of irritation, making them common in formulas aimed at sensitive skin.
Origin & sourcing
Synthetic ester typically made from glycerin (which may be plant-derived) and stearic acid sourced from vegetable or other fats.
Questions everyone asks
What is the role of polyglyceryl-2 stearate?
It is a gentle non-ionic emulsifier that keeps the oil and water phases of a sunscreen blended while adding a soft emollient feel.
Is it suitable for sensitive skin formulas?
It is commonly used in gentle, sulfate-free formulas because polyglyceryl esters are generally mild and well tolerated.