used by date on gels???

[Kit Kat]

Does gel have a used by date, i purcahsed my gel kit, probably February/March last year...

 

[Zingara]

Your supplier should be able to give you guidelines on shelf life, but this differs from range to range.

That said, if its still Ok in the pot, it's most probably still Ok on the nails. It tends to go cacky (technical term!) and thick once its past its best.