im on 140mg test and 250 iu hcg per week. i noticed when i get a new bottle of hcg i feel great for the first month of using it. then during the second month using the same hcg my sex drive drops off some and i feel a little more tired. Has anyone noticed that hcg loses its potency after a certain period of time? on the box it says its good for 60 days. i think the hcg is losing its potency the second month of use and my testosterone levels are lower than the first month thats why i dont feel as good. what do you think? i just had some blood work do this morning.