No, we do not put oxygen/moisture absorber packets into the final packaging. We have in-house quality control testing - via a water activity meter - which is the industry standard for ensuring that your breast milk powder is dry enough for long term storage. Oxygen absorber packets are not typically used in the food industry for milk powder of any kind because they cannot be relied upon to ensure a quality final product that is dry enough to prevent microbial growth. The use of oxygen/moisture absorber packets is not a substitute for an actual shelf life analysis, which must be done by an outside laboratory. The only way to do this is via testing to ensure that the freeze-drying process was performed efficiently. We had an independent lab perform shelf life testing on our finished product, which is why we can be confident in our stated 3 year shelf life.