Fina is meant to be implanted in the cartiledge in the ear of cow. This being said, it is effective without having to inject it intramusculary. Im not saying go stab yourself in the ear, however many people say dont use fina if your not willing to inject. From many of the results Ive read, transdermally works effectivly as well, only the dosage is slightly higher. I would say to get the results of injecting 75 mg ed you would need to apply transderammyl 125-150 mg ed, considering how cheap the original pellets are and the ease of making finasol, if your not needle-friendly, you should still get the equivalent results. jmo