Most kidney supplements (cranberry, chanca piedra, dandelion) target the filter side. They focus on what goes IN while ignoring what can't get OUT. They skip the drainage system entirely.
Four botanicals are traditionally used to support the drainage side:
Cleavers, old herbalists called it nature's lymphatic broom. Used to help sweep buildup out.
Stillingia, traditionally used to help flush retained fluid from kidney tissue.
Red Clover, used to support the body's clearing of the toxic load that drives fatigue and brain fog.
Prickly Ash, used to support microcirculation around the filters so the other three can reach the tissue.
This is what Lymora is built around. All four, at meaningful doses. The drainage-side category barely exists yet.