Certificate of analysis for PEAKSPURITY Shilajit Resin, the first check for spotting fake shilajit

How to Spot Fake Shilajit in the UK: 7 Checks Before You Buy (2026 Guide)

By the PEAKSPURITY team · Last updated 20 October 2026 · 9 min read

Quick answer

The only reliable way to tell whether shilajit is genuine and safe is an independent lab report (certificate of analysis) for the exact batch you are buying, showing heavy metals within UK legal limits. Home tests like the water test, burn test or temperature test can hint at texture, but none of them can detect lead, mercury, arsenic, microbes or fillers. In the UK, food supplements must not exceed 3.0 mg/kg lead, 1.0 mg/kg cadmium and 0.10 mg/kg mercury.

Key takeaways

  • Shilajit is a natural mineral substance, so purification and testing matter more than with most supplements.
  • A 2008 study in JAMA found that about one in five traditional Ayurvedic remedies bought online contained detectable lead, mercury or arsenic.
  • Ask for a certificate of analysis, and check its batch number matches your jar.
  • UK supplements must be labelled as a food supplement, list a daily dose and carry set warnings.
  • Disease or cure claims are not allowed on UK supplements, so a seller making them is a red flag.

Why is fake or contaminated shilajit a problem in the UK?

Shilajit is a sticky, tar-like substance that forms in mountain rock, traditionally collected in the Himalayas and Altai mountains. Because it comes straight from rock, raw shilajit can carry soil, debris, microbes and naturally occurring heavy metals. It must be purified and tested before it is safe to sell.

The risk is documented. A 2008 study published in JAMA bought 193 traditional Ayurvedic products online and found that one-fifth contained detectable lead, mercury or arsenic. Shilajit is sold through many of the same online channels, often by sellers based outside the UK who are not subject to UK food law.

The result is a market where two jars that look identical can be very different products. The seven checks below help you tell them apart.

Check 1: Does the seller have a certificate of analysis?

A certificate of analysis (CoA) is a lab report showing what a specific batch contains. It is the single most important document in this guide. A trustworthy seller should share it on request, or publish it on the product page.

Here is what a useful CoA should cover, alongside the UK legal limits for food supplements:

Test UK maximum (supplement as sold) Why it matters
Lead 3.0 mg/kg The most common heavy metal concern in mineral-based remedies.
Cadmium 1.0 mg/kg Builds up in the body over time.
Mercury 0.10 mg/kg The strictest limit of the three.
Arsenic No specific supplement limit; should still be tested Found in the JAMA study alongside lead and mercury.
Microbiology Product must be safe to eat Shows the resin was purified properly (bacteria, yeast, mould).
Fulvic acid content Not legally required If a seller advertises a fulvic acid percentage, the report should show it and the method used. See our fulvic acid guide.

Also check that the report names a real, independent laboratory. A document produced by the seller's own team, with no lab name or accreditation, is not much more than a marketing sheet.

Check 2: Does the batch number on the report match your jar?

Shilajit is a natural material, so its composition can vary from batch to batch. A lab report from three years ago, or from a different batch, tells you very little about the jar you are holding. Look for a batch or lot number printed on your packaging and make sure the same number appears on the certificate. If the jar has no batch number at all, that is a problem in itself, because UK food labelling requires lot identification.

Check 3: Is the label correct for the UK?

In the UK, shilajit is normally sold as a food supplement. Food supplements are covered by the Food Supplements Regulations (such as the Food Supplements (England) Regulations 2003, with equivalents in Scotland, Wales and Northern Ireland), which set out what must appear on the pack. A compliant label should include:

✓ The words “food supplement”
✓ A recommended daily amount
✓ A warning not to exceed the recommended amount
✓ A statement that supplements should not replace a varied diet
✓ A warning to keep out of reach of young children
✓ A UK business name and address
✓ A batch number and best before date
✓ Ingredients and net quantity

A product missing these basics has probably been imported without anyone checking it meets UK rules, and that usually means nobody checked the contents either.

Check 4: Is the seller making claims that are not allowed?

UK law does not allow food supplements to claim they treat, prevent or cure any disease. Health claims are only permitted if they appear on the official GB Nutrition and Health Claims Register, and adverts are also policed by the Advertising Standards Authority.

That makes miracle marketing one of the easiest red flags to spot. Be cautious of listings that promise to:

  • cure or treat a medical condition
  • “fix” or “boost” hormones in a set number of days
  • replace medication
  • deliver guaranteed results

A seller willing to break advertising rules openly is unlikely to be careful about testing behind the scenes. For a balanced look at what the research does and does not show, read Shilajit Benefits: What the Evidence Actually Shows.

Check 5: Do home tests prove shilajit is real?

No. Home tests are popular on social media, but they can only tell you about texture and solubility, not safety or purity.

Home test What it can suggest What it cannot tell you
Temperature test
Hard when cold, soft and sticky when warm
The product behaves like genuine resin Heavy metals, microbes, fillers
Water test
Dissolves fully in warm water
Little insoluble debris or grit Dissolved contaminants, which are invisible
Burn test
Said to bubble rather than burn
Very little, results are inconsistent Anything about safety. We do not recommend it.

Important: a product can pass every home test and still fail a lab test. Heavy metals do not change how resin looks, feels or dissolves.

Check 6: Is the price realistic?

Sourcing, purifying and independently testing every batch costs money. If a large jar is a fraction of the price charged by established UK sellers, ask where the savings came from. Testing, purification and proper labelling are usually the first things cut. A low price is not proof of a bad product, but combined with a missing lab report it is a strong warning sign.

Check 7: Can you trust the seller?

Before you order, check that the seller offers:

  • a registered UK business name and a contact address
  • a working email address that gets a reply
  • clear UK delivery and returns information
  • straight answers to the question: “Can I see the lab report for this batch?”

If that question gets silence or a vague reply, shop elsewhere.

The shilajit buyer's checklist

Before you buy, tick off every box:

☐ Independent lab report available (not the seller's own)

☐ Lead, cadmium and mercury within UK limits

☐ Microbiology tested

☐ Batch number on the report matches the jar

☐ Labelled “food supplement” with dose and warnings

☐ UK business name and address on the pack

☐ No disease, cure or miracle claims

☐ Price realistic for a tested product

☐ Seller answers questions about testing

Shop PEAKSPURITY shilajit

We built PEAKSPURITY around the checks in this guide. Our shilajit is independently lab-tested, and you can email info@peakspurity.co.uk with any question about testing or a specific batch.

Not sure which format suits you? Read Shilajit Resin vs Gummies: Which One Is Right for You? or our beginner's guide to using resin daily.

Frequently asked questions

How can I tell if shilajit is real?

The most reliable way is an independent lab report for your batch. Genuine resin usually hardens when cold, softens when warm and dissolves in warm water, but these home checks only suggest authenticity. They cannot confirm the product is pure or safe.

Is shilajit legal to buy in the UK?

Shilajit is widely sold in the UK as a food supplement. Like any food, it must be safe, correctly labelled and free of unauthorised health claims. If you have concerns about a specific product, your local Trading Standards service or the Food Standards Agency can advise.

What heavy metal limits apply to supplements in the UK?

UK law sets maximum levels for food supplements as sold of 3.0 mg/kg for lead, 1.0 mg/kg for cadmium (3.0 mg/kg for supplements made mainly from seaweed) and 0.10 mg/kg for mercury.

Does the water test prove shilajit is real?

No. Dissolving fully in warm water suggests the resin has little insoluble debris, but heavy metals and other contaminants dissolve invisibly. Only a lab test can detect them.

What should a shilajit certificate of analysis include?

At minimum: the lab's name, the batch number, the test date, and results for lead, cadmium, mercury, arsenic and microbiology. If a fulvic acid percentage is advertised, it should appear on the report with the test method.

Why is some shilajit so cheap?

Purification and independent batch testing add real cost. Very cheap shilajit has often skipped one or both, or been bulked out with fillers.

Is shilajit resin better than gummies or capsules?

Neither is automatically better; it depends on taste, convenience and how you like to take supplements. The same quality checks apply to every format. Our resin vs gummies guide compares them in detail.

Can I take shilajit if I am pregnant or on medication?

Speak to your GP or pharmacist first if you are pregnant, breastfeeding, taking medication or have a medical condition.

Sources

This guide is for general information and is not medical or legal advice. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle.

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