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Piper Methysticum Leaf/​Root/​Stem Extract

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Also-called-like-this: Kava Kava Extract

Details

Kava kava is a crop of the western Pacific that has some analgesic (painkiller) properties. According to Paula's Choice, it can also cause skin irritation. A 2009 safety assessment of the ingredient concluded that "the available data are insufficient to support the safety of these ingredients in cosmetics".

Show me some proof

  • International journal of toxicology, 2009 Nov-Dec;28(6 Suppl):175S-88S, Final report on the safety assessment of Piper methysticum leaf/root/stem extract and Piper methysticum root extract.

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