> The bulk powder from Farmalabor in Italy is the kind I like best, but US Customs can cause problems with that. Naturlich Kost Co-op, 4260 TR 628, Millersburg, OH. 44654, sells it mixed with glycerine, which is o.k. > I think cascara's most important effect is the reduction of the pro-inflammatory nitric oxide, which poisons mitochondrial energy production. Raw [[carrot]] or bamboo shoots can sometimes have a similar effect by reducing NO synthesis.