Microbial
Salmonella, E. coli, total yeast and mold, and total aerobic count. Limits set per AHPA and AKA guidance for botanical powders.
Every batch tested
ISO 17025 labs
Search by batch or strain
Independent Lab Results
Every batch tested, every result published.
A Certificate of Analysis (COA) for each lot of Garuda Kratom we sell. Microbial, heavy metals, and alkaloid profile testing from independent labs. Search by strain name or by the batch number on your pouch.
ISO 17025 accredited
PDF reports per batch
Updated each batch
What We Test For
Three panels, every batch.
If a batch fails any of these, it does not ship. The COAs below show the actual numbers, not just a pass mark.
Heavy metals
Lead, cadmium, arsenic, and mercury, reported in parts per million against California Prop 65 and AKA limits.
Alkaloids
Mitragynine and 7-hydroxymitragynine percentages by HPLC. The numbers behind every strain page on this site.
Browse Lab Results
Pick a strain, read the receipts.
Search by batch number from your pouch, or scroll through every active strain. Each card expands to show the full numbers and links to the original PDF report.
Exposure Calculator
Run the numbers on any COA.
Enter daily intake and the four heavy-metals values from any kratom Certificate of Analysis. The calculator compares the resulting daily exposure against USP <2232>, WHO/JECFA, and California Prop 65 limits. Pick one of our current batches to auto-fill, or paste values from any vendor's COA.
Estimate daily exposure from a COA
Enter daily intake and the four heavy-metals values from any kratom Certificate of Analysis. The calculator compares the resulting daily exposure against three regulatory frameworks for elemental contaminants in dietary supplements: USP General Chapter <2232>, WHO/JECFA tolerable intakes, and California Proposition 65.
Why these three frameworks give different numbers
USP <2232> sets oral Permitted Daily Exposure limits for elemental contaminants in dietary supplements based on toxicology data and a margin of safety.
WHO/JECFA publishes tolerable intakes (PTWI / PTMI / BMDL) that national regulators reference; values shown here are scaled to a 60 kg adult daily.
California Prop 65 uses much lower No Significant Risk Levels (cancer) and Maximum Allowable Dose Levels (reproductive toxicity), so a result can land under USP while still being above Prop 65.
This calculator is for evaluating any vendor's COA, not just Hudson Valley Botanicals. It is informational and is not a health claim.
Pick one of our current batches to auto-fill, or enter values from any vendor's COA below.
Daily exposure analysis
Custom values
In familiar terms
How much of a common food or botanical supplement carries the same amount of each metal as the kratom intake above. Reference values from the table at the bottom.
Reading the USP <2232> threshold
USP <2232> sets daily exposure limits for elemental contaminants in dietary supplements based on chronic daily exposure assumptions. These thresholds are conservative and are calculated for general adult populations. Exceeding them at high intake does not indicate immediate harm but suggests heavier users may want to be aware of cumulative exposure.
Reading the Prop 65 threshold
California Prop 65 sets extremely conservative thresholds primarily for cancer-risk modeling. Most botanical products, including many foods, exceed Prop 65 thresholds. This is why supplements often carry Prop 65 warnings when shipped to California. Exceeding Prop 65 does not indicate a product is unsafe under USP, FDA, or international standards.
Reference table: typical heavy-metal contributions per serving
Source values used in the "In familiar terms" comparisons above. Trace heavy metals are present in nearly all soil-grown plant foods, in seafood, and in botanical supplements. Typical contributions per serving in µg, drawn from the FDA Total Diet Study, FDA imported-turmeric surveillance, and independent supplement testing (ConsumerLab, Labdoor, Consumer Reports). Values vary widely by source, region, and growing conditions; ranges shown are approximate midpoints, not absolutes.
| Source | Serving | Pb | As | Cd | Hg |
|---|---|---|---|---|---|
| Foods | |||||
| Raw spinach | 200 g | ~25 | — | ~30 | — |
| Brown rice (cooked) | 200 g | — | ~14 | ~10 | — |
| Dark chocolate (70%+) | 30 g | ~2 | — | ~6 | — |
| Light canned tuna | 100 g | — | — | — | ~12 |
| Apple juice | 240 mL | — | ~2 | — | — |
| Sweet potato (baked, with skin) | 150 g | ~10 | — | — | — |
| Botanical supplements (typical commercial midpoints) | |||||
| Turmeric powder | 5 g (1 tsp) | ~3 | — | ~1 | — |
| Spirulina powder | 5 g (1 tsp) | ~1 | ~0.5 | ~5 | — |
| Maca root powder | 5 g (1 tsp) | ~1 | — | ~0.5 | — |
| Ashwagandha powder | 3 g (1 dose) | ~0.5 | — | — | — |
| Reishi mushroom powder | 2 g (1 dose) | — | — | ~3 | — |
| Cocoa powder (raw) | 10 g (1 tbsp) | ~1.5 | — | ~3 | — |
Household-unit conversions used in the comparisons above: 1 cup raw spinach ~30 g; 1 cup cooked brown rice ~200 g; 1 chocolate square ~5 g; 1 cup apple juice 240 mL; 1 small sweet potato ~130 g; 1 tsp turmeric / spirulina / maca powder ~3 g; 1 ashwagandha capsule ~500 mg; 1 tsp reishi powder ~2 g; 1 tbsp raw cocoa ~5 g. Sources: U.S. FDA Total Diet Study; FDA imported turmeric and spice surveillance; Consumer Reports food contaminant surveys (rice, juice, chocolate); ConsumerLab and Labdoor independent supplement testing; peer-reviewed surveys of leafy-green and seafood mercury content. Botanical values are typical midpoints from commercially-tested batches; individual products vary substantially. Reproduced for dietary context only.
Why We Publish
You should know what is in the pouch.
You have the right to know what is in your kratom powder. We test every batch with independent labs and post the full results here. Each Certificate of Analysis covers microbial content, heavy metals, and alkaloid percentages.
We work with labs that hold ISO 17025 credentials. The numbers on each COA are produced by trained analysts using validated methods, not in-house kits. Lab limits referenced on the cards follow AHPA and American Kratom Association guidance for botanical powders.
If a batch does not pass, it does not ship. No quiet relabeling, no exceptions. Browse the cards above by strain name, or use the search to find the batch number from your order.
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From the COA to the pouch on your counter.
Single-origin strains and split-kilo pricing. The numbers above are the same numbers behind every product on the site.
