What it is
This ingredient is a fully esterified compound made from one molecule of the polyol pentaerythritol and four molecules of the long-chain fatty acid behenic acid. Its high melting point and waxy character let it thicken and structure oil phases, stabilize sticks and balms, and add a smooth, cushiony skin feel. In sunscreens it helps give creams and balms their body and helps suspend pigments or other particulates.
Safety & warnings
Large fatty-acid esters of this type are generally well tolerated and low in irritation potential. It is a heavy, wax-like material; in very rich, occlusive formulations some users prone to congestion may prefer lighter textures.
Origin & sourcing
Synthetic ester; produced by reacting pentaerythritol with behenic acid, a fatty acid that can be derived from plant oils.
Questions everyone asks
What role does Pentaerythrityl Tetrabehenate play?
It works as a structuring wax and thickener, giving creams, balms, and sticks firmness and a smooth, emollient feel.
Is it an oil that can clog pores?
It is a heavy wax-like ester rather than a liquid oil; tolerance varies by person and by how rich the overall formula is.