Probably 4 or 5 years. I will admit I don't use many of them often but I would rather buy 10ml decants then buy full bottles and not use them. I've had a couple go bad on me but not many.
I'm on The Aventus Lounge on FB and its ridiculous how they hype up some of these batches. Every batch smells great and there might be slight differences but nothing is worth being overpayed for. I...