Free Bottle of Protein Blitz Print out the coupons and take to either Vitamin Shoppe or GNC to get a free bottle. Free Bottle of Protein Blitz (GNC) Free Bottle of Protein Blitz (Vitamin Shoppe) No related posts. Sign up for our daily newsletter and never miss a deal again! As a subscriber, you'll be the first to know about new offers and discounts on SweetFreeStuff.com! Enter your e-mail: