Optimum Nutrition  ON Gold Standard 100% CASEIN (Creamy Vanilla) Slow Digesting Premium Micellar Casein Protein Powder -Net Wt. 2lbs. - Exp. 1/2019 - Please note: The FDA & The USDA do not require best by or expiration dates on Dietary Supplements. This will be safe to use indefinitely. It will be fresh & effective to use & enjoy.                                                                                                                                                The True Strength of Casein: Faster digesting protein is desirable immediately before and after excercise to help refuel recovering muscles but slow digestion and absorption may be more beneficial at other times- including bedtime when your body typically goes for hours without food. Casein proteins are acid sensitive and thicken in the stomach. Compared to some other proteins, it can take longer for our Gold Standard 100% Casein to be broken down into its amino acid subcomponents. By using only premium micellar casein as a protein source, we've created a formula that sets the standard for slow digesting protein support.                                                                                If, you have any questions? E-mail me, I will return your answers A.S.A.P.       Method of payment PayPal Only. All Major Credit Cards and All Bank Debit Cards accepted through secure payment processor PayPal.