I've had a few of our things of flavored lube about a year now and I haven't had any issues with them. I'm bad and haven't checked for an expiration date tho. If there is one, you should probably get rid of it once it reaches that point or starts to change color or consistency. I haven't had to get rid of a lube yet because it went back.

I've had one bottle (that I've obviously been using very slowly) for about three years. So far, it's doing fine. The expiration date is printed on the bottom as either 2013 or 2015 (can't remember off the top of my head), so I think I'm good.

I wouldn't keep past the expiration date, but with regular use you shouldn't have any left by the expiration date.

Although, if there is any discoloration or foul odor. I'd go ahead and toss it early.

We usually use it up before the expiration date.

I don't go through much lube cause I only use it anally. And I always forget to check the expiry date...hehehe.

I keep lube until it's gone unless it changes color, texture, smell, or taste. If in doubt, toss it out.