Why Heavy Metal Testing Matters for Shilajit — and Equil's Results

Shilajit comes from mountain rock, so heavy metal safety can't be assumed — only verified. Here's what to test for, and what Equil's results show.

Heavy metal testing is the safety test no reputable Shilajit brand should skip, and no informed consumer should overlook. Unlike most supplements, where heavy metal contamination is an incidental risk, Shilajit's origin in mountain rock makes naturally occurring heavy metals an inherent characteristic of the raw material. Purification addresses this — but only independent testing confirms it has been done adequately.

Why heavy metals are in raw Shilajit at all

The Himalayan rock formations that produce Shilajit contain naturally occurring mineral deposits — including, in some cases, heavy metals. As Shilajit forms over thousands of years, it can absorb these from the surrounding geology. This isn't a sign of poor sourcing; it's a natural characteristic of any mineral product from a mountain source. The critical question is what happens next: a proper purification process significantly reduces heavy metal levels, but "significantly reduces" is not "eliminates," and "within safe limits" requires external verification — not just a brand's word.

The four metals to test for

Lead (Pb): one of the most common concerns. Chronic low-level exposure has serious neurological consequences; safe limits are tightly defined and must be verified.

Arsenic (As): present in many geological formations. Inorganic arsenic is a known carcinogen and the primary regulatory concern.

Mercury (Hg): a potent neurotoxin even in small quantities — must be verified within safe limits.

Cadmium (Cd): accumulates in the kidneys with chronic exposure; has specific regulatory limits for supplements.

What the results actually look like

Each Certificate of Analysis shows the tested parameter, the result for that batch, the unit of measurement, and the acceptable limit. When the result is within the acceptable limit, the batch passes. When it isn't, the batch doesn't ship. Published results are the evidence that purification has done its job — not just a promise that it should have.

Equil's heavy metal results

Equil tests every batch for lead, arsenic, mercury, and cadmium through Hill Laboratories, an independent accredited laboratory in New Zealand. Every batch released to customers has passed heavy metal screening within established safe limits — a direct consequence of the careful low-temperature purification process that concentrates bioactive compounds while reducing contaminants. The results are published openly at equil.co.nz/pages/third-party-test for any customer to review before or after purchasing.

Key points

• Not a manufacturing fault: heavy metals in raw Shilajit are a natural geological occurrence
• Purification is necessary but not sufficient: independent testing confirms the reduction is adequate
• Self-certification isn't enough: only an accredited independent lab provides meaningful verification
• Batch-by-batch: levels can vary by collection site — testing every batch is the gold standard
• Published results matter: a testing claim without published results can't be verified

Who this is for

• People considering Shilajit who are concerned about heavy metal safety
• Those comparing products and wanting to know what safety verification to look for
• Anyone with heightened sensitivity to heavy metal exposure — parents, people with kidney conditions

FAQs

Is Shilajit dangerous because of heavy metals?
Properly purified and tested Shilajit is not — levels in quality products are well within safe limits. The risk is with unpurified or poorly tested products. Choosing one with published third-party results removes the concern. See Is Shilajit Safe?

Can I get Shilajit guaranteed free of heavy metals?
No natural mineral product from a geological source can guarantee zero content — trace amounts exist in many natural foods too. The goal is verification that levels are within established safe limits, which is what testing confirms.

Does Equil test for all four metals?
Yes — every batch covers lead, arsenic, mercury, cadmium and other contaminants, published at equil.co.nz/pages/third-party-test.

What standards are the limits measured against?
Recognised international standards for heavy metals in dietary supplements — the specific standards referenced appear in each Certificate of Analysis.

What if a batch doesn't pass?
It doesn't ship. Customers only receive batches that have passed every parameter — that's the whole point of testing each one. For the full testing picture, see Why Third-Party Testing Matters for Shilajit.

More questions? Browse the Shilajit Knowledge Base.