I am wondering how long HCG lasts in your body, I am guessing it trends down after 3 days? Peaks when? I am using biweekly injections 3 days apart of 350.

Also, I have a vial that I reconstituted that is still probably a third full after ~60-70 days. Should I throw it away and get a refill? I have read that it is good for 60 days refrigerated, after that the potency declines rapidly? Please advise.