Ingredient
Polyglyceryl-2 Dipolyhydroxystearate
PG2 Dipolyhydroxystearate
What it is
A polyglycerol ester of polyhydroxystearic acid used as a water-in-oil emulsifier, common in mineral sunscreen and long-wear color cosmetic formulations.
How it works
Lowers interfacial tension between water and oil phases to stabilize water-in-oil emulsions, which is why it is frequently paired with inorganic UV filters like zinc oxide in sunscreen bases.
What it does
Emulsifier
Emulsion stabiliser
Concerns to know
-
Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.