This is the purest, most powerful Non GMO formulation of 600mg NAC (N-acetyl Cysteine) available. But as reassuring as it is to know these facts, what just one of our 600mg NAC VegeCap per day can do to help maintain your health is what is really important. We ship most of the orders within the Handling Time specified. However, please make a note that we do not ship on Saturdays and Sundays. We will always keep your informed if we anticipate any kind of delay in your order. VitaGen is NOT responsible for any and all packages detained/impounded/or returned to us by the country’s respective Customs Department. It is the FULL responsibility of the customer to ensure that these vitamins and supplements are allowed by their Customs. Customs regulations vary greatly by country.