I like Woodland Essence too - have a couple of their products. The last time someone posted about
different brands, there were several mentioned. I would only buy a pure and recommended product--there is a lot of 'crap' out there.
Although I buy Biopure Jap Knotweed and I, too, wanted the tincture so that I could control the dosing. But I had absolutely no problem with it and moved up to max dose very quickly.
retailbiopure.me/Japanese-Knotweed-p50.htmlExcellent customer service
-p