Cannot be combined with any other offers. Limit one (1) coupon per purchase. Excludes Bio-Botanical Research, Designs for Health, Douglas Laboratories, Genestra, Klean Athlete, Metabolic Maintenance, MethylPro, Premier Research Labs, Pure Encapsulations, Pharmax, Thorne, Unda, and Xymogen products from the total amount needed pre-tax to receive the discount. Offer can be changed or terminated at any time. The promotional discount offer is valid on a single purchase of $50 or greater pre-tax. If a partial return or exchange results in an order total below the minimum $50, the original $5 discount will be deducted from the refund amount.