Lab testing
Tested batch by batch
Heavy metals, microbes and potency — checked on every batch by independent labs, with the reports posted here by lot number. Not supplier paperwork. Actual results.
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Heavy metals
Lead, arsenic, cadmium, mercury — every batch.
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Microbes
Plate count, yeast & mold, E. coli, Salmonella, Staph.
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Potency
What the label says is what the tub holds.
“Lab-tested” is on every Kulfé tub. This page is where we back it up. Every batch is screened for heavy metals, microbes and potency, and the reports are posted here by lot number so you can match them to the tub or pouch in your hand.
What every batch is screened for
Heavy metals
Lead, arsenic, cadmium and mercury — the four that matter most in protein and mineral powders.
Microbes
Total plate count, yeast and mold, E. coli, Salmonella and Staph aureus.
Potency
Each active is checked against the label. 21g of protein means 21g. 5g of creatine means 5g.
How a batch gets here
- Made. Each batch is blended and sealed in a GMP-certified facility, with a lot number printed on the tub or pouch.
- Tested. Samples from that lot go to an independent third-party lab for heavy metals, microbes and potency.
- Published. The lab’s report is posted below under the product and lot number.
Why you won’t see supplier certificates here
Every ingredient we buy arrives with a certificate of analysis from the company that sold it. That paperwork is useful to us, but it isn’t independent — it’s the seller grading its own homework. So we don’t publish it. The only reports that go on this page come from independent labs testing the finished product.
Reports by lot
Women’s Creatine + Inositol — sample lot AN0731WCP-B
Advanced Laboratories · report 300659-01 · finished powder · tested August 2026
| Test | Our limit | Result |
|---|---|---|
| Creatine monohydrate (per 12 g stick) | 5,000 mg | 5,000 mg ✓ |
| Lead | ≤ 0.1 mg/kg | 0.020 mg/kg ✓ — about 0.24 µg per serving, under California’s Prop 65 daily limit of 0.5 µg |
| Arsenic | ≤ 0.5 mg/kg | Pass ✓ |
| Cadmium | ≤ 0.1 mg/kg | Pass ✓ |
| Mercury | ≤ 0.1 mg/kg | Pass ✓ |
| Total aerobic count | ≤ 1,000 cfu/g | Pass ✓ |
| Yeast & mold | ≤ 100 cfu/g | Pass ✓ |
| E. coli · Salmonella · Staph aureus | Absent | Pass ✓ |
Only creatine was assayed in this round; the other nine actives are not yet tested. Full report available on request.
More reports are posted here by lot number as each batch comes back from the lab.
Have a lot number and a question about your batch, or want the full report? Email sales@kulfenutrition.com.