I read the article. Aren't homeopathic remedies past 12C statistically unlikely to contain a single molecule of the additive in each mole of the substance, though? If it works, I'd recommend getting at the *most* diluted, maybe 5C. But realistically, 3C or 2C seems like it would be more effective, at 1ppm and 100ppm, respectively. But if you're going to do that, I'd recommend getting your own S. purpurea and extracting and diluting from that. I'd actually recommend trying to get a 10 ppm solution by mixing 1 part 2C solution with 9 parts carrier solution (typically water)