FREE Argan Essence Hair Serum Sample by Mail January 1st, 2021 By Nicole Leave a Comment This post may contain affiliate links, which means I will make a small commission if you click and make a purchase. FREE Argan Essence Hair Serum Sample by Mail Hurry and claim a FREE Argan Essence Hair Serum sample. While supplies last. Looking for more FREE Samples by Mail? Click here. Never miss another deal! Subscribe to our FREE email newsletter or follow us on Facebook. Thanks for stopping by!