I have been taking Burbur daily 10 drops x 2 since September last year without any problems and actually my gut is hugely improved. I think I did have some SIBO issues but these seem to have gone too.
My stools which used to be way too light are now a normal mid brown colour consistently so things have really improved for me. I am also taking Banderol, Cumanda, Mora, Houttuynia on a rotation as per Cowden but don't tolerate Samento.
Not sure if my liver has been helped but the gut certainly has in an excellent way.
Pam