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Shilajit

Is Shilajit Safe? The Heavy Metals Question

Raw shilajit can carry lead, arsenic, mercury and cadmium. What purification removes, what a lab report must show, and how to read one before buying.

Written byNico Jaroszewski
Published
A laboratory report and a sealed sample jar side by side on a work surface.
AI-assisted preview image. Replace with approved original photography before publication.

This is the article that matters most, and it is the one most shops skip.

Shilajit is scraped from rock. Rock contains metals. Raw, unpurified shilajit can therefore carry lead, arsenic, mercury and cadmium, and there are documented cases of contaminated material reaching consumers. This is not a rare defect in an otherwise clean category. It is the default condition of the raw material.

What purification does

The traditional process is shodhana: the raw material is dissolved, filtered to remove rock, sand and plant debris, and reduced back to a resin. It removes the insoluble matter. On its own it is not a guarantee about dissolved metals.

Modern practice adds testing. A finished batch is assayed and the result is written down.

What a lab report has to say

A certificate of analysis is only useful if it is specific. Look for:

  • The named metals, each with a measured value and a detection limit.
  • A batch or lot number that matches the jar.
  • The name of the testing laboratory.
  • A date.

A PDF with no batch number describes some shilajit, somewhere, once. It says nothing about the jar you are holding.

Who should still be cautious

Purified and tested resin is not universally appropriate. Shilajit is iron-rich, so anyone with haemochromatosis or another iron-overload condition should avoid it. It is not for use in pregnancy or breastfeeding. Anyone on prescribed medication should ask a clinician.

Shilajit does not treat, cure or prevent any condition, and nothing on this page should be read as suggesting it does.

Read next: what shilajit is and how to take it.

Questions

Does shilajit contain heavy metals?

Raw shilajit scraped from rock can carry lead, arsenic, mercury and cadmium picked up from the surrounding geology. Purification and batch testing exist precisely because of this.

What is shodhana?

The traditional Ayurvedic purification process for shilajit, which involves dissolving the raw material, filtering out rock and plant debris, and reducing the liquid back to a resin.

What should a shilajit lab report show?

Named heavy metals with measured values and detection limits, the batch number, the testing laboratory, and the date. A report without a batch number tells you nothing about the jar in your hand.

Is purified shilajit completely free of heavy metals?

No supplement is. The honest standard is measured levels below the statutory limits for the market it is sold in, evidenced per batch, not an absolute-zero claim.

Sources

  1. Clinical evaluation of purified shilajit on testosterone levels in healthy volunteersAndrologiaStudyAccessed 3 September 2026

Who wrote this

Nico Jaroszewski

Shilajatu is written and run by one person, from Winterthur in Switzerland. Every article is edited by a human before it is published, and where something is not known yet the page says so.

How we work

Keep reading

The questions everyone asks

What is shilajit, actually?

A dark resin that seeps out of rock at altitude in the Himalaya, made of plant matter pressed and broken down over a very long time. What comes off the rock is not the product. Shodhana, the purification step, is what separates the resin from everything it was sitting in, and that is the step worth asking a seller about.

Why does fulvic acid matter?

Fulvic acid is a carrier molecule. It binds trace minerals and is studied as a way of getting them across a cell membrane, which is why the interesting question about a mineral is not how much is in the jar but how much of it arrives. That is the mechanism the research is built on. It is a line of study, not a settled fact, and nobody should sell it to you as one.

How much do I take, and when would I notice anything?

A rice-grain portion, dissolved in warm water or under the tongue, once a day. A 30g jar lasts two to three months at that dose. Shilajit is not a stimulant and nothing here works like one, so the honest unit of time is a month rather than an afternoon. If you want the caffeine experience this will disappoint you.

Resin or capsules?

Resin is the whole-spectrum mineral load and it tastes like it does. Capsules are 500mg split evenly between a standardised active and purified resin, in a vegan HPMC shell with no rice flour, no magnesium stearate and no bulking agent. Six blends, each built on the same resin. One caution: the Sea Moss and Bladderwrack blend is naturally high in iodine, so if you have Hashimoto’s or any diagnosed thyroid condition, take that one to your doctor rather than to the checkout.

Where does it come from, and how do I know it is clean?

Collected at altitude in Nepal and purified in a GMP-certified facility. Rock carries whatever the rock carried, which in the Himalaya can mean lead, arsenic and mercury, so every batch is tested for heavy metals by a third-party laboratory and a certificate of analysis is held for the batch you receive. A jar that cannot show you what came out the other side is asking you to take that on faith.

Do you ship outside Europe?

The launch markets are the EU, the UK and Switzerland. Australia, New Zealand, Canada and Ireland get shipping rates without a localised site. Rates and delivery times go up once fulfilment confirms them.

Purified, lab tested, sold as it is

Resin of the Himalayas

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