12 months and I had some clomid crash one time and put it in hot water to bring it back. That's what the supplier suggested to do, however do this at your own discretion. I really trusted that particular source and I had no problems.

well injectable oil is about 5 years... it might last a real long time but just lose potency after a while like all medications

I had a supplier tell me its longer than orals because air cant get to it.