Peach leaf tea made from dried peach leaves and bark is caffeine-free. However, if the peach leaf tea is combined with black tea or rooibos tea it may contain caffeine. In the Physiomedical Dispensatory it is written that "Peach kernels and leaves contain no prussic acid whatever; this they only produce by chemical changes, when exposed to heat and moisture" (fermentation). Peach leaf is a great remedy for nausea and a fantastic general nervine.