Obviously injecting is going to be more efficient, and you will see better gains. Everybody is different though, and you may get good gains by taking them orally. This is one of those situations that you just need to try and see how it works out for your self. If it doesnt work then you will know that the next time you need to shoot them. I will only use pre made tren. I am also very skeptical of the sterility issues of making it your self. I dont care how many times you filter it, but unless it is made in a lab it is not 100% sterile. Many people will argue this point, but being in the medical field and knowing what it takes to make something 100% sterile, you can not achieve this in your own home. I'm sure this comment will get plenty of flames but it is the truth. I would rather pay the extra for premade tren, and even though it is made by a Vet Co. it more than likely is not 100% sterile either. I guess it is more of a mental comfort for me.