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C

C12-13 Alketh-9

C12-13 Alketh-9

Keeps oil and water mixed.

What it does

It’s a blend of fatty alcohols 12 to 13 carbons long joined to a PEG chain, which lets it mix with both oil and water. It’s the newer name US safety reviewers use for C12–13 pareth-9.

The evidence, graded

expert consensusUS safety reviewers (2012) assessed the alkyl PEG ethers, which products use mostly to help oil and water mix, and some to condition skin or steady a mixture. Their conclusion names trideceth-12, C12–13 pareth-3 and C12–14 pareth-7, and also C12–13 pareth-9 and C12–14 pareth-12, which their index now calls C12–13 alketh-9 and C12–14 alketh-12. Because some of these ethers could irritate skin, they judged them safe as used in products made not to irritate.Fiume 2012 · International Journal of Toxicology ↗

Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.

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