I don't know the answer, but I just opened and used a bottle of PT-141 that has been in my freezer for well over a year and it works fine.
Was it mixed or dry when you froze it?
In the refrigerator or freezer the dry powder is good for several years. At room temp I would expect it to degrade after one month. I just started oxytocin that was in my refrigerator for over a year in dry form and it's just as potent as the vial I used a year ago when I got it.
I wish I known this a year ago.. I have some lr3 I was about to use that ive had in my safe for I know a year.. its still in dry form, but didn't realize they degraded so fast.
Give it a try anyway. Take it preworkout with a big carb meal. If it's still good you'll know by the increased pump.
true... I always thought shelf life was pretty long if still dry..