Originally Posted by BASK8KACE
Vet grade does not go through the same testing as human grade. The dosing of vet grade products tends to vary from lot to lot--you may get vet gear that is severely underdosed or occasionally over dosed. Human grade gear is cleaner and has stricter manufacturing guidelines.
If you had to chose between the two, human grade is is better (safer). However, when you consider pricing, vet grade will be cheaper and possibly a better buy--same results for less money (if it is relatively clean and correctly dosed).