How to Read a Shilajit Lab Report: Fulvic Acid & Heavy Metals (2026)
How to Read a Shilajit Lab Report: Fulvic Acid, Heavy Metals & Purity Explained (2026)
Most shilajit brands claim to be lab-tested. Very few actually are — and even fewer publish their results publicly. This guide shows you exactly what to look for, which numbers are acceptable, and the one question that eliminates 90% of brands before you spend a single euro.⚡ What to Check — The Short Version
A real shilajit Certificate of Analysis must show: fulvic acid percentage (minimum 20% for capsules), heavy metal levels for lead, mercury and arsenic below EU limits, and must be issued by an independent EU-accredited laboratory — not the manufacturer's own lab. If any of these three are missing — the product cannot be trusted.
You have done your research on shilajit. You understand what it is supposed to do. Now comes the most important step — verifying that what you are about to buy actually contains what it claims, and is free from the contaminants that make unrefined shilajit genuinely dangerous.
This is where most buyers make their biggest mistake. They see the words "lab-tested" on a product label or website and assume that means the product is verified and safe. It does not. Those two words are among the most meaningless phrases in the supplement industry unless they are backed by a specific, publicly accessible document that you can read yourself.
That document is called a Certificate of Analysis. This guide teaches you exactly how to read one.
What is a Certificate of Analysis and why does it matter?
A Certificate of Analysis (CoA) is a formal document produced by an independent laboratory that has physically tested a specific batch of a product. It records the exact composition and safety profile of what was tested — not what was intended to be in the product, but what was actually found.
For shilajit specifically, the CoA is more important than for most supplements because:
- Raw shilajit from uncontrolled sources has been independently found to contain lead and mercury at levels exceeding EU safety limits
- The primary active compound — fulvic acid — varies enormously between sources and extraction methods. A product claiming "rich in fulvic acid" without a measured percentage is meaningless
- The supplement category is largely unregulated in terms of label claims — a manufacturer can write almost anything on a label without legal consequence
The 5 things every shilajit CoA must show
When you receive or access a Certificate of Analysis for shilajit, look for these five elements in order of importance:
Element 1 — Most Important
Laboratory accreditation
What to look for: The CoA must state the name of the testing laboratory and show that it is accredited — ideally ISO 17025 or equivalent EU accreditation. The laboratory must be independent from the manufacturer.
Red flag: The CoA lists the manufacturer's own facility as the testing location. Or the laboratory name cannot be verified with a quick search. Or there is no accreditation number visible.
Element 2 — Critical for Effectiveness
Fulvic acid percentage
What to look for: A specific percentage — not a range, not "high fulvic acid content", not "naturally rich in fulvic acid." A real number measured by the laboratory.
Acceptable levels: Capsules minimum 20% · Resin minimum 60% · Gummies minimum 15%
Red flag: No percentage stated anywhere on the CoA or label. This is the most common sign of a diluted or low-quality product. Without a number, there is nothing to verify.
Element 3 — Critical for Safety
Heavy metal screening — Lead, Mercury, Arsenic
What to look for: Specific measured values in mg/kg or ppm for at minimum lead (Pb), mercury (Hg), and arsenic (As). These must be below EU maximum limits.
| Heavy Metal | EU Maximum Limit | What you want to see |
|---|---|---|
| Lead (Pb) | 3.0 mg/kg | Below 0.5 mg/kg ideally |
| Mercury (Hg) | 0.1 mg/kg | Below 0.05 mg/kg ideally |
| Arsenic (As) | 1.0 mg/kg | Below 0.3 mg/kg ideally |
| Cadmium (Cd) | 1.0 mg/kg | Below 0.2 mg/kg ideally |
Red flag: No heavy metal values listed at all. Or values expressed only as "pass/fail" without the actual numbers — this hides what the real measurements were.
Element 4 — Quality Assurance
Microbiological purity
What to look for: Results for total aerobic plate count, yeast and mould, and E. coli at minimum. All should be within acceptable food supplement limits.
Red flag: No microbiological testing shown. Raw shilajit from poorly controlled environments can carry microbial contamination that causes digestive illness.
Element 5 — Traceability
Batch number and test date
What to look for: A specific batch number that matches the product you are buying, and a test date within the last 12 to 24 months. This proves the CoA is batch-specific — not a generic document reused across products.
Red flag: No batch number visible. A date that is several years old. Or a CoA that does not reference any specific production run — these are brand-level certificates that provide no product-specific information.
Real CoA vs fake CoA — how to tell the difference
| What you see | Real CoA | Fake / Insufficient CoA |
|---|---|---|
| Laboratory name | Named, searchable, accredited | Generic, manufacturer's own lab |
| Fulvic acid | Exact % with method stated | Not listed or "rich in fulvic acid" |
| Heavy metals | Exact mg/kg values listed | "Pass" only — no actual numbers |
| Batch number | Specific to this production run | Missing or generic brand number |
| Publicly accessible | On the product page before purchase | "Available on request" only |
The one question that eliminates 90% of brands
Before spending any money on shilajit — from any brand, at any price — ask this single question:
"Can you show me your Certificate of Analysis from an EU-accredited laboratory for this specific batch — with the fulvic acid percentage and heavy metal values?"
The answer to this question tells you everything. A brand that has genuinely done the work will answer with a link to a document within seconds. A brand that has not will respond with one of these:
- "Our product is lab-tested" — without providing the actual document
- "We use only high-quality sources" — which is a marketing claim, not evidence
- "The CoA is available on request" — meaning it is not publicly available, which defeats the purpose
- No response at all
If you receive any of the above responses — do not buy from that brand. Not because they are necessarily dishonest, but because you have no way to verify what you are putting in your body.
Montavita publishes every batch Certificate of Analysis publicly on our product page. Read the exact fulvic acid percentage and heavy metal values for the product you are about to order. EU lab-tested, GMP-certified. 30-day satisfaction guarantee. Free shipping across Europe from Belgium.
View Lab Report & Order →Your complete pre-purchase checklist
Before buying any shilajit — save this checklist and run through it:
- ✓ Is there a publicly accessible CoA? Not "available on request" — actually on the product page right now.
- ✓ Is the laboratory independent and EU-accredited? Search the lab name to verify it exists and is accredited.
- ✓ Is the fulvic acid percentage stated? Minimum 20% for capsules, 60% for resin. No number = no accountability.
- ✓ Are heavy metal values shown as actual numbers? Lead, mercury, arsenic and cadmium must have specific mg/kg values — not just "pass."
- ✓ Does the CoA show a batch number? This proves it is batch-specific testing, not a generic brand document.
- ✓ Is GMP certification shown? This proves consistent manufacturing standards across all batches.
- ✓ Is there a money-back guarantee? A brand confident in its quality offers one without conditions.
Frequently asked questions
What is a Certificate of Analysis for shilajit?
A Certificate of Analysis is a formal document from an independent laboratory that records the actual measured composition of a specific batch of shilajit — including fulvic acid percentage, heavy metal levels, and microbiological purity. It is the only reliable way to verify that a shilajit product is safe and effective.
What fulvic acid percentage should shilajit have?
For capsules: minimum 20% fulvic acid. For resin: minimum 60%. For gummies: minimum 15%. These percentages align with the concentrations used in clinical research that demonstrated benefits. Products that do not state a percentage cannot prove they meet these thresholds.
How do I know if a shilajit lab report is genuine?
Search the laboratory name to verify it exists and is accredited. Check that the CoA shows a batch number matching the product. Verify that heavy metal values are given as actual numbers in mg/kg — not just "pass." A genuine CoA from an independent EU lab is straightforward to verify in under 5 minutes.
Is shilajit without a lab report dangerous?
It is a significant risk. Raw shilajit from uncontrolled sources has been independently found to contain lead and mercury above EU safety thresholds. Without an independent lab test you have no way to verify safety. A product without a published CoA from an EU-accredited lab should not be consumed.
Does Montavita publish its lab reports?
Yes — on every product page, before purchase. Every batch of Montavita shilajit is tested in a Belgian EU-accredited laboratory for fulvic acid content, lead, mercury, arsenic, cadmium and microbiological purity. The batch-specific Certificate of Analysis is publicly accessible before you place an order.
Where can I buy shilajit with a verified EU lab report in Europe?
Montavita ships EU lab-tested shilajit from Belgium across Europe. Every batch has a publicly available batch-specific Certificate of Analysis. Available in capsules, resin and gummies. Free EU shipping and 30-day satisfaction guarantee.
Montavita shilajit passes every point on the checklist above. EU lab-tested, GMP-certified, batch-specific CoA publicly available on every product page. Capsules, resin and gummies. Free shipping across Europe. 30-day money-back guarantee — no conditions.
View Lab Report & Order Now →