my dermatologist says it is a marketing ploy.
he says the ones with zinc oxide in it last years.
the ones we had left in aruba were still within date when we used it.
the sunlotion i use every day rarely lasts very long, so it goes empty way before expiration.
the no ad lotion (#15) that i use daily and just bought expires in Jan 2017.
if weather is good here, i may get thru the rest of october with it