GNC: BOGO + $1 Shipping
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Buy select vitamin, herb, and diet supplement, and get another free at GNC.com. Plus, shipping is a flat $1. For example, add 2 of the Calcium Plus 1000 with Magnesium and Vitamin D Caplets to your cart, and your total drops from $25.98 to $12.99. Even after $1 shipping, you save $12 off the regular price. You can also mix and match. Sales tax is charged in states with GNC retail locations.