Osmosis Stem Factor Pur Medical Skincare, Growth Factor Serum, 1 Fl oz

I've used it before from a local skincare. I like it very much, but when I purchased it from Amazon Marketplace by the seller: Ear-Candy in July 2016, it had Jan. 2017 as expiration date, and it only lasted me 15 days for one pump/day, compared to the one I purchased from a local skincare which lasted me about two months. The product is good, but expensive, and the quantity was not as it was labeled.