Natural Caffeine 200MG 100 Tablets – At The Vitamin Shoppe, our private brands meet or exceed industry standards for quality through a rigorous testing process, so you can be confident in the products you buy, every time. Tested: We demand rigorous testing for ingredient purity and potency, detailed product specifications, and scientific evidence with documentation to support every claim. Trusted: You can trust our products to meet or exceed FDA guidelines due to third-party analysis, and a strict manufacturer evaluation and quality control process. Guaranteed: Every purchase is backed by our 30-day money back guarantee. Love it, or return it-no questions asked.