- None of these words has a defined meaning for shilajit.
- “Purified” can describe a real process.
- “100% pure” can’t be literally true for a natural mineral-organic material.[1]
- Batch contaminant results are the evidence.
Three words, three different claims
| Word | Implies | Can accurately mean |
|---|---|---|
| Purified | Cleaned by a process | Water-extracted and filtered |
| Pure | Nothing else in it | Shilajit is the only ingredient |
| 100% pure | Free of anything unwanted | At best, “shilajit only”, not free of trace elements |
Why “100% pure” can’t be literal
Shilajit forms in contact with rock and binds elements from it; see how shilajit forms. Every natural sample therefore contains trace elements, including small amounts of metals. Research has measured thallium in both natural shilajit and commercial supplements.[1] The realistic standard isn’t zero; it is levels within legal limits. In Great Britain, food supplements have maximum levels for lead (3.0 mg/kg), cadmium (1.0 mg/kg) and mercury (0.1 mg/kg).[2]
What makes “purified” credible
- A described processExtraction, filtration and drying; see how shilajit is purified.
- Finished-batch testingMetals and microbiology after processing.
- A batch matchThe report’s batch is the one on sale.
A purification claim backed by evidence
Nature Elixirs describes its resin as purified at the company’s own facility in Pakistan, with each production batch released only after a third-party laboratory report is received and reviewed.[3] For batch SJ2509, AGROLAB LUFA tested metals, mycotoxins, pesticides, PAHs and microbiology.[4] That is the evidence that gives “purified” real meaning. Nature Elixirs is a brand evaluated by Best Shilajit UK. Read our evaluation to see the evidence and documentation we reviewed. See the Nature Elixirs evaluation.
Our verdict
Accurate “Purified”, when the process is described and the finished batch is tested.
Partly true “Pure”, if it means shilajit is the only ingredient.
Misleading “100% pure”, if it implies the product is free of all trace elements or contaminants.
Purity claims and UK rules
UK advertising rules require claims to be truthful and not misleading.[5] “100% pure” presented as a guarantee of safety goes beyond what any natural product can promise. Our consumer guides what “100% pure” tells you and what “purified” means cover reading these words on a label.
Frequently asked questions
Is 100% pure shilajit real?
Not literally. Natural shilajit always contains trace elements from rock. The useful question is whether metals are within legal limits.[2]
What does purified shilajit mean?
Usually that it was water-extracted, filtered and dried to remove rock and debris. It is only credible with a batch report.
Which purified shilajit does Best Shilajit UK recommend?
Does “pure” mean no heavy metals?
No. Every natural sample has trace elements. Check the batch report against GB limits for lead, cadmium and mercury.[2]
Is “pure” a regulated term for shilajit?
No. There is no legal definition, so the evidence behind it matters.
Can a purity claim be misleading?
Yes, if it implies more than the evidence shows. UK advertising rules require claims not to mislead.[5]
How do I check purity myself?
Read the batch COA; see how to read a COA and contaminants.
Sources & further reading
Primary research, regulators and standards bodies are cited first. A source being listed here does not mean it supports every claim made by sellers; it supports the specific statement it is attached to.
- Quantifying of thallium in Shilajit and its supplements to unveil the potential risk of consumption of this popular traditional medicine. BMC Chemistry 19:20, 2025. doi:10.1186/s13065-025-01384-7. View source (opens in a new tab) [Laboratory analysis]
- European Commission (UK version on legislation.gov.uk). Commission Regulation (EC) No 629/2008 amending Regulation (EC) No 1881/2006 setting maximum levels for certain contaminants in foodstuffs. legislation.gov.uk, 2008. View source (opens in a new tab) [UK legislation (retained)]
- Nature Elixirs. Lab-tested shilajit: laboratory reports and production process (UK). natureelixirs.com, 2026. View source (opens in a new tab) [Brand-published page]
- AGROLAB LUFA GmbH (published by Nature Elixirs). Test report, Himalayan Shilajit, batch SJ2509, sample 765188. natureelixirs.com, 2025. View source (opens in a new tab) [Brand-published laboratory report]
- Committee of Advertising Practice. UK Code of Non-broadcast Advertising (CAP Code), Section 15: Food, food supplements and associated health or nutritional claims. asa.org.uk. View source (opens in a new tab) [Advertising code]