OZ Naturals Retinol Serum is in special at Amazon Canada. $32,85, instead of $111,04. Should I go for it? (Link included) [Product Question]

Beauty Tips For Body Care
So, I heard a lot of good thing about this serum but with the normal price I could not buy it. Now at that price, this really is it worth it?(http://www.amazon.ca/gp/product/B00NT0AR7E?psc=1&redirect=true&ref_=od_aui_detailpages00)Thank you!
Girls Blog 2015
Submitted by Gwengwel