There are many products with all sorts of ratios such as THC:CBD of 3:1, 1:20, 5:2 and so on. Yet, when people try these ratios out, they sometimes find that two products, even with the same ratios, can have widely different effects, and sometimes even no effect. There are a few reasons for this, including: mislabelling of products; different extraction methods will have an effect on the final...

Source