In regard to taking oils via capsule for a UTI or kidney infection, the following is taken from a statement made by Mark Webb who has a BS in Biochemistry and Plant Biology and Diplomas in Remedial Massage and Aromatherapy:
For bladder infections, the oral pathway [
capsules] is an appropriate application method as is a suppository [
capsules]. Oils rich in sesquiterpenols (SQTOLs), particularly
Sandalwood and
German Chamomile, have great efficacy for UTI because these SQTOL's don't require oxidation via Phase I metabolism, but meerly conjugation (joining) to allow for excretion. These conjugated biproducts can be just two SQTOL's joined to reach the critical size for filtration in the kidney's so when they pass out of the body in the urine they appear to still be therapeutic. The aroma is unmissable as are the antiinflammatory & antibacterial effects. - Mark Webb