Betel leaf (Piper betle) contains an essential oil that has extreme antiseptic power (bactericidal and fungicidal). Betel leaf (Piper betle) can be used in the treatment of Tinea versicolor or known in the community as panu. However. its use in the form of leaves is considered impractical by the public and also difficult to obtain. https://www.roneverhart.com/MagnaFlow-2009-2011-Buick-Lucerne-OEM-Grade-Federal-EPA-Compliant-Direct-Fit-Catalytic-Converter/