Is there a point when acne med. Retin-A goes bad?

i've had a tube of retin-a for a while now and i was wondering if it would ever go bad....Is there a point when acne med. Retin-A goes bad?
i use retin a. it goes bad in a few years, but u can still use it. It just wont be as effective.Is there a point when acne med. Retin-A goes bad?
Like all meds, it expires. Check the tube for expiration date. The longer it's been in storage, the less potent it becomes. Try lemon juice on your skin, it really works for clearing up acne! I've been using it for the past 3 weeks, and I have seen dramatic improvement. Plus it only cost $0.38 to try.