Around 10% of the top-selling 208 CBD products contained less than 20% of the CBD levels stated on pack
Looking at the larger sample of 208 products, around a third had less than 80% of the CBD level claimed on pack, with around 10% having less than 20% of the CBD stated on pack, with some products containing no detectible CBD at all, and some containing significantly more than the level claimed on pack (in one case, more than 700% of the declared value).