Po
Polyglyceryl-4 Oleate
Polyglyceryl-4 Oleate
A helper that keeps oil and water mixed so a product stays smooth.
What it does
It’s made by joining four glycerin units to oleic acid. It’s there to hold the formula together, not to change your skin.
The evidence, graded
expert consensusUS safety reviewers (2023) assessed 274 polyglyceryl fatty acid esters, mostly used to condition skin or help oil and water mix. Their conclusion names polyglyceryl-4 oleate, -10 dioleate, -3 beeswax and -3 dicitrate/stearate. They judged all 274 safe as used, in products made not to irritate. Some can help other ingredients pass into skin, so they asked makers to take care when combining them.Fiume 2023 · International Journal of Toxicology ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
Browse all 809 ingredients — grouped by what they do, each with whatever evidence we can cite.
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