* Terms and conditions: Offer only valid to North American Customers only and is a one-time use offer for one free-of-charge bottle of any grade of Fetal Bovine Serum.100 Golden Tickets will be randomly distributed in sample FBS shipments between July 31, 2019 and September 30, 2019. Amazon gift cards can be redeemed through December 31, 2019. Excludes bulk quantities and special orders. Some exclusions apply. Offer cannot be used in conjunction with any other offers or discounts, for prior or past purchases, or orders pending. No credits will be issued. Orders can be placed directly with R&D Systems or Atlanta Biologicals, but the offer is not valid on orders placed through our extended distributor network. All requests are subject to approval by R&D Systems.