Every lot of SOLO is third-party tested before it ships. An independent, ISO/IEC 17025-accredited lab tests each production lot for heavy metals and microbes, and we post the results here so you can check the exact tub in your hands.
Find your lot's results
Your lot number is stamped on the side of the tub next to the best-by date (or scan the QR code on the label).
| Lot number | Released | Certificate of Analysis |
|---|---|---|
| Our first lot is in production. Its full lab report will be posted here before it ships. | ||
What we test for
| Test | What it checks | Our limit |
|---|---|---|
| Creatine monohydrate (HPLC) | Identity and purity: it's the real thing, at full strength | 99.9–102% (dry basis) |
| Lead | Toxic heavy metal | Under 2.75 mcg per serving |
| Arsenic | Toxic heavy metal | Under 10 mcg per serving |
| Cadmium | Toxic heavy metal | Under 4.1 mcg per serving |
| Mercury | Toxic heavy metal | Under 3 mcg per serving |
| Microbes | Total plate count, coliforms, yeast & mold, E. coli, Salmonella, Staph aureus | Under 100 cfu/g; pathogens not detected |
How to read a lab report
- "<0.001" means not detected. The metal was below the smallest amount the lab's equipment can measure.
- Purity can read slightly above 100%. Lab measurements carry a small margin of error (about ±1–2%), so a result like 100.8% means essentially pure.
- About 12% moisture is expected. Each creatine monohydrate molecule carries one bound water molecule, about 12% of its weight. That's part of the ingredient, not an impurity.
- Why some trace lead shows up. Tiny amounts of lead occur naturally in soil, water and many foods. What matters is how much: we hold every lot to strict per-serving limits and post the actual number.
About the California Prop 65 warning
California requires a warning on many foods and supplements that contain any measurable lead, even at trace levels well below federal limits. Our label carries it so California customers have the information the law requires. The exact lead result for your lot is listed in its report above.
Questions about a report? Call (657) 384-3527 or use our contact page.