Does Anyone know about Japanese Herbs?

Hello Everyone-My sister is currently seeking a degree as an N.D. She did some sort of exam on me and that I have a sluggish lymph system and weak kidneys. She gave me this herbal supplement called "Enviro Detox". I was wondering if any of you had used this, and if it is effective. I'm not sure what I should be expecting from this. I do feel better, but that could be because I have been with you all for 6 days now and I am drinking more H20 and eating much better. Any input would be appreciated:)