Lab & sourcing
Prozyum leaf is harvested from mature trees in Kalimantan, Bali and Kedah by farms we have worked with since 2022. Leaves are sun-dried on site, then shipped to the Netherlands where they are milled, blended for consistency and sealed into 1 kg packs.
Every batch is tested by an independent Dutch laboratory for mitragynine content, heavy metals (lead, arsenic, cadmium, mercury), salmonella, E. coli and total yeast and mould. The batch number is printed on every pack and the certificate is emailed on request.
We only sell by the kilo. It keeps the price per gram honest and it means every pack we ship comes from a single tested batch.
- 01Harvest
- 02Sun-dry
- 03Ship
- 04Mill & blend
- 05Lab test
- 06Seal 1 kg
Lab results
Summary levels from independent laboratory testing.
Heavy metals
| Metal | Limit | Result | of limit |
|---|---|---|---|
| Arsenic (As) | < 10,000 ppb | 290 ppb | 3% |
| Cadmium (Cd) | < 4,100 ppb | 10 ppb | 0% |
| Lead (Pb) | < 900 ppb | 640 ppb | 71% |
| Mercury (Hg) | < 300 ppb | 10 ppb | 3% |
All four metals within the limits. Results in ppb (µg per kg of powder).
Mitragynine content
Mitragynine is the most abundant alkaloid in kratom leaf; the figure is its share of the powder by weight.
Questions about testing? Email us: info@prozyum.com