What it is
This ingredient is a mixed ester of dipentaerythritol with hydroxystearic acid, stearic acid, and rosin acids. The rosin (hexarosinate) portion adds tack and gloss, while the fatty esters provide emollience and structure, making the blend useful for cushiony, dewy, or luminous textures. In sunscreens with a radiant finish it helps bind pigments and pearls and contributes a smooth, glossy feel.
Safety & warnings
The fatty-ester portions are generally well tolerated. The rosin (colophony) component is a recognized contact allergen for a minority of people, so those with known rosin or colophony sensitivity may wish to take note. It is a heavier, occlusive ingredient by nature.
Origin & sourcing
Synthetic ester blend made from dipentaerythritol combined with hydroxystearic acid, stearic acid, and rosin acids derived from pine resin.
Questions everyone asks
Why does this ester make a sunscreen look glossy?
The rosin-derived portion adds tack and shine, while the fatty esters give a smooth, cushiony feel, supporting luminous or dewy finishes.
Could it cause a reaction?
It is generally well tolerated, but the rosin (colophony) component is a known contact allergen for some people, so those sensitive to rosin should be aware.