Products based on Tea Tree Oil are in the market but have a low reputation for performance. We interviewed many users of these products and received comments indicating that the musty smells would return quickly and frequently within a day.
EUROPEAN COMMISSION HEALTH & CONSUMER PROTECTION DIRECTORATE-GENERAL December 2008 [SCCP/1155/08]. “SCCP found that neat TTO and formulations containing 5% TTO can exhibit skin irritancy (SCCP/1155/08, pp. 18). Moreover, neat TTO is a sensitizer in humans (pp. 25).” The TTO monograph submitted by the Norwegian delegation in 2001, indicates that only products having a conc. of 2% or more seem to cause skin reactions ((Council of Europe, 2001: pp. 24).
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