You should also check whether there are any cracks on the beads.
Granted the fibre the more safe it is the time when spun into yarn. But Mary's answer relates specifically towards job these types of applying for (dog groomer). https://Www.digitaljournal.com/pr/news/press-advantage/celestial-stem-offers-high-dosage-options-for-pet-owners-looking-to-buy-cbd-pet-treats-in-mesa