Final report on the safety assessment of Piper methysticum leaf/root/stem extract and Piper methysticum root extract.

Valerie Robinson, Wilma F. Bergfeld, Donald V. Belsito, Curtis D. Klaassen, James G. Marks, Ronald C. Shank, Thomas J Slaga, Paul W. Snyder, F. Alan Andersen

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Piper methysticum leaf/root/stem extract is the cosmetic ingredient name for a material derived from the leaves, roots, and stems of the Piper methysticum G. Forster plant, commonly known as kava kava. This and other kava-derived ingredients are used as skin-conditioning agents at concentrations from 0.0001% to 0.1%. The Food and Drug Administration issued a consumer advisory in 2002 expressing concern about liver damage in individuals who have ingested kava products. The available oral toxicity data support the concern about liver damage on ingestion but do not resolve the question, for example, whether these ingredients would be substantially absorbed through the skin. Other data needs are described, including toxicology data for yangonin, methysticin, and kavain, which may be present in kava-derived ingredients. Accordingly, the available data are insufficient to support the safety of these ingredients in cosmetics.

Original languageEnglish (US)
JournalInternational Journal of Toxicology
Volume28
Issue number6 Suppl
StatePublished - Nov 2009
Externally publishedYes

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Kava
Cosmetics
Liver
Skin
Safety
Toxicity
United States Food and Drug Administration
Toxicology
Names
Eating

ASJC Scopus subject areas

  • Toxicology

Cite this

Robinson, V., Bergfeld, W. F., Belsito, D. V., Klaassen, C. D., Marks, J. G., Shank, R. C., ... Andersen, F. A. (2009). Final report on the safety assessment of Piper methysticum leaf/root/stem extract and Piper methysticum root extract. International Journal of Toxicology, 28(6 Suppl).

Final report on the safety assessment of Piper methysticum leaf/root/stem extract and Piper methysticum root extract. / Robinson, Valerie; Bergfeld, Wilma F.; Belsito, Donald V.; Klaassen, Curtis D.; Marks, James G.; Shank, Ronald C.; Slaga, Thomas J; Snyder, Paul W.; Andersen, F. Alan.

In: International Journal of Toxicology, Vol. 28, No. 6 Suppl, 11.2009.

Research output: Contribution to journalArticle

Robinson, V, Bergfeld, WF, Belsito, DV, Klaassen, CD, Marks, JG, Shank, RC, Slaga, TJ, Snyder, PW & Andersen, FA 2009, 'Final report on the safety assessment of Piper methysticum leaf/root/stem extract and Piper methysticum root extract.', International Journal of Toxicology, vol. 28, no. 6 Suppl.
Robinson, Valerie ; Bergfeld, Wilma F. ; Belsito, Donald V. ; Klaassen, Curtis D. ; Marks, James G. ; Shank, Ronald C. ; Slaga, Thomas J ; Snyder, Paul W. ; Andersen, F. Alan. / Final report on the safety assessment of Piper methysticum leaf/root/stem extract and Piper methysticum root extract. In: International Journal of Toxicology. 2009 ; Vol. 28, No. 6 Suppl.
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