We pulled the certificate of analysis (COA) for every batch, checked potency against label claims, and weighed price-per-mg — so you can pick based on data, not marketing.
Only brands with current third-party COAs made this list.
We compare tested mg vs. label claims for accuracy.
Ranked partly on real cost-per-milligram, not sticker price.
Cross-checked against verified customer reviews.
Every brand on this list submitted, or publishes, a current third-party certificate of analysis (COA). We checked the tested cannabinoid content against what's printed on the label — a gap of more than 10% is a red flag we factor into scoring.
Full-spectrum retains trace THC (under 0.3% federally) and other cannabinoids, which some research suggests work better together — the "entourage effect." Broad-spectrum keeps other cannabinoids but strips THC. Isolate is pure CBD only, best if you want to avoid THC entirely.