Consumption of chamomile tea containing apigenin-7'-O-glucoside resulted in the peak plasma concentration of apigenin-4'-glucuronide occurring at 2 h, with urinary excretion equivalent to 34% of intake, in human subjects. Borges 2022

Analysis of the metabolic profile changes of a combination of 9 herbal extracts, including chamomile, following in vitro digestion found the majority of the constituents to be stable against the simulated conditions, potentially reaching the colon intact. Thumann 2020

A pharmacokinetic study found the maximum concentrations of quercetin, luteolin, and apigenin following oral administration of Matricaria chamomilla extract to be 0.29 ± 0.06 µg/ml, 3.04 ± 0.60 µg/ml, and 0.42 ± 0.10?µg/ml, respectively, in rats. Dong 2017

An in vitro study was conducted to obtain information on which components of volatile oils or minerals are able to pass through membranes under different conditions. The transfer of chamomile oil was faster to buffer pH=1.1 than from buffer pH=1.1 to buffer pH=7.5. Szentmihályi 2001