Pro bio s expiration

[Second Shot]

I see there is an expiration date on the box but I'm wondering if it is different once opened. I think zeo says like three months once opened or something. Anyone heard anything like this for pro bio s?

 

[G8trBait16]

I keep my Pro Bio S in my fridge. It says it doesn't expire till Mid 2017. I haven't heard that it expires early after being opened.

 

[Anirban]

Generally the expiry date is much beyond our common usage. Like my new vial say expiry 2017 and as per usage it should last not beyond August. So we are generally safe. But in case the expiry is close and the vial will not be finish by then still I think it should last beyond the official expiry if kept in fridge. Pro BioS is a bacterial solution and at low temperature they generally can survive for upto a certain timepoint even far beyond there expiry date.

 

[Perry]

Correct, use by date is the date that it is effective through, but likely could go beyond that. Just smell it, if it smells foul then you should discontinue it's use. Cheers