Is Stronger Better? Cannabis Resin Is 25% More Potent in Past 50 Years
Leafwell
AUGUST 4, 2021
A global study of more than 80,000 samples of illicit cannabis has shown that concentrations in cannabis resin increased by 24% between 1975 and 2017. As for cannabis flower (or “herbal cannabis”), THC concentrations increased by 14% between 1970 and 2014.
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