We have conducted shelf life tests, and if tongkat ali extract is kept dry at a consistent temperature, the shelf life is several years.

Officially, we state a shelf life of one year, but that applies to sub-optimal conditions.

You can freeze extract and store it for years. The danger of spoilage is only present at the time you thaw. Extract should not be wet. So, when you thaw, you should apply dry air, to remove the moisture that will be present during thawing.