Appreciate the info guys....So 500 IU is the correct dosage weekly....So does that mean i have to split a 1/2 ml and take a shot everyday? or can i do it on the same days as i shoot test.....How long does a 5000 iu bottle last on 8-12 week cycle so i know how much to buy before hand? And if im using a slin pin does it have to penetrate muscle or does it just have to penetrate my skin to become effective...if i do it daily how much should i inject in ml's and if im doing it with a slin pin how much is that on a slin pin....Just need a good conversion so i know how much to buy as well how much ima be using weekly?