From: Label accuracy of unregulated cannabidiol (CBD) products: measured concentration vs. label claim
Sample identifier | Source | Label claim mg CBD/mL | Observed mg CBD/mL ± SEM (mg/mL) | Difference mg CBD/mL | Percent of label claim |
---|---|---|---|---|---|
76 | Online | 16.7 | 14.9 (± 0.2) | − 1.8 | 89 |
30 | Local | 33.3 | 28.9 (± 0.2) | − 4.5 | 87 |
5 | Online | 33.3 | 27.4 (± 0.2) | − 5.9 | 82 |
7 | Online | 33.3 | 27.1 (± 0.3) | − 6.2 | 81 |
29 | Local | 34.5 | 27.1 (± 0.4) | − 7.4 | 79 |
80 | Online | 20.0 | 14.5 (± 0.7) | − 5.5 | 73 |
31 | Local | 25.0 | 15.1 (± 0.2) | − 9.9 | 60 |
28 | Local | 41.7 | 19.2 (± 0.2) | − 22.4 | 46 |
48 | Local | 17.9 | 7.3 (± 0.1) | − 10.5 | 41 |
24 | Online | 50.0 | 19.4 (± 0.4) | − 30.6 | 39 |
45 | Local | 20.0 | 7.6 (± 0.1) | − 12.4 | 38 |
13 | Online | 16.7 | 2.9 (± < 0.1) | − 13.8 | 17 |
Mean | 28.5 | 17.6 | − 10.9 | 61 | |
Standard deviation | 10.8 | 8.8 | 8.2 | 24 |