Shilajit Guide
The knowledge centre
Everything you need to know about Shilajit
51 articles researched and written by our team. No marketing BS, just honest, evidence-based information about what Shilajit is, how it works, and what actually matters when buying it.
Shilajit is one of the most talked about and least understood supplements on the UK market. It gets sold as a Himalayan miracle, a testosterone booster, an 85 mineral cure-all, and most of what is written about it is written by people trying to sell it to you. Fulvic acid percentages get quoted without naming the test that produced them. "Gold grade" is presented as a standard when no such standard exists. Brands compete over altitude claims that mean nothing while quietly skipping the contaminant testing that actually protects you.
This guide is our attempt to fix that. Some of it makes Shilajit look better than you might expect. Some of it makes it look worse. That's the point: we've written what the evidence supports, not what sells product.
- 51 in-depth articles
- Human research and primary sources
- Independent laboratory testing
- Last reviewed August 2026
Commercial disclosure
One Life Foods sells Shilajit. We don't accept paid placements, advertising fees or affiliate commissions from competing Shilajit brands.
Before you start
Why we wrote this guide, and where we stand on Shilajit
"We believe Shilajit has genuine value, but we don't believe everything said about it." Some articles here challenge claims made across the industry, including ones we could make ourselves. That's deliberate, not a mixed message.
Start here
Shilajit explained: what it is, how it works, and what actually matters
New to Shilajit? Start with this practical overview of how the matrix is thought to work, how it's used, the main product forms, the common myths and what separates a well-tested product from a poor one.
Benefits & human research
The potential benefits of Shilajit are mainly discussed in relation to cellular energy, physical fatigue, exercise performance, testosterone in men, postmenopausal bone health and skin biology.
Human studies have investigated specific purified or standardised preparations in several of these areas. The findings don't prove that every resin, powder, capsule or gummy will have the same effects, but they provide a more credible basis for discussion than traditional claims or customer anecdotes alone.
Shilajit Benefits: What Human Research Suggests
A structured review of the main proposed benefits, the human findings behind them and the claims that go beyond the available evidence.
Shilajit for Women: Benefits, Menopause, Energy and Safety
Women-specific research on bone health and skin biology, alongside the wider evidence around energy, fatigue and physical resilience.
Shilajit and Testosterone: What Human Studies Show
What a 90-day study in healthy middle-aged men found, what it didn't establish and why the result shouldn't be generalised to everybody.
Shilajit for Exercise Performance: Fatigue, Strength and Recovery
Human evidence on fatigue-related muscular performance, possible recovery mechanisms and the difference between endurance support and instant stimulation.
6 areas
Cellular energy, fatigue, exercise performance, testosterone, bone health and skin biology, each examined through the human studies available, not marketing claims.
What Shilajit is
Shilajit is a naturally occurring organic-mineral substance found within certain mountainous rock systems. It isn't one isolated active ingredient. It's a variable natural matrix containing humic substances, fulvic compounds, mineral elements and numerous smaller organic components, and its exact composition changes with geology, biological source material, regional conditions, purification and processing.
This is why questions such as "What is Shilajit made from?" can't be answered with one mineral list or fulvic acid percentage.
What Is Shilajit? Composition, Origin and Traditional Use
How Shilajit is thought to form, what it contains, where it occurs and how its traditional use differs from modern marketing.
Shilajit Myths: What's True and What Isn't
A claim-by-claim examination of the stories, shortcuts and assumptions most commonly repeated about Shilajit.
Does Shilajit Really Contain 85 Minerals?
Where the repeated 85-mineral claim came from, why mineral profiles vary and why detecting an element doesn't prove a meaningful nutritional dose.
Does Shilajit Contain Vitamins? What's True, What's Unproven and What's Marketing
Why claims that Shilajit is a natural source of B vitamins, vitamin C or vitamin D aren't supported by the evidence, and what it would actually take to prove them.
The Pharmacology of Shilajit: From Mummies to Mitochondria
A deeper journey through Shilajit's traditional history, early pharmacology and the mechanisms now being explored in modern research.
Why Is Shilajit Resin So Sticky?
What creates Shilajit's changing texture and tackiness, plus what its physical behaviour can and can't tell you about quality.
Safety & how to use it
Is Shilajit safe? Purified, appropriately tested Shilajit has generally been well tolerated at the amounts used in the relatively small human studies available. That doesn't mean every product is equivalent or that Shilajit will suit everyone.
Safety depends on both the person and the product. Personal considerations include pregnancy, breastfeeding, medication use, existing health conditions and individual tolerance. Product considerations include purification, storage and testing for unwanted contaminants. There's no universal dosage, so follow the instructions for the product you're using and choose a measured serving in milligrams where possible.
Is Shilajit Safe? Side Effects and Who Should Avoid It
A practical overview of tolerability, possible side effects, contamination risks and the groups that should seek professional advice or avoid it.
How to Take Shilajit: Dosage, Timing and Best Practice
How to measure and use Shilajit, what human-study doses can and can't tell us and why consistency matters more than a supposedly perfect time.
Does Shilajit Completely Dissolve?
What normally happens when resin is mixed with warm liquid and why dissolving behaviour isn't a reliable authenticity test.
How Long Does Shilajit Take to Work?
What people commonly report, when researchers have measured outcomes and why Shilajit shouldn't be judged like an instant stimulant.
Is Your Shilajit Watered Down or Mouldy?
Signs that a resin may contain excess water, have been stored badly or show possible microbial deterioration.
Shilajit and Coffee: Heat, Caffeine and Interactions
Whether Shilajit can be added to coffee, what heat is likely to do and how to separate a caffeine effect from a Shilajit effect.
Does Shilajit Break a Fast? Fasting, Ketosis and Autophagy
Whether a normal serving matters for intermittent fasting, water fasting, ketosis or autophagy, and why the honest answer to most of it is that nobody has measured it.
Shilajit and Ashwagandha: Benefits, Evidence and Practical Use
Why the two supplements are often combined, where their proposed roles differ and what the evidence does and doesn't establish about the stack.
Important
Shilajit should be avoided during pregnancy and breastfeeding, and it isn't recommended for children. Anyone taking medication or managing an existing health condition should speak to their GP, pharmacist or another suitably qualified healthcare professional before using it.
Buying guide
Choosing the best Shilajit involves more than comparing prices, mountain names or fulvic acid percentages.
The UK market includes properly sourced and independently tested products alongside vague origin stories, invented grades and numbers produced through different analytical methods. More useful quality signals include credible origin information, appropriate purification, internal batch traceability, finished-product testing, a stated analytical method and an honest declaration of how much actual Shilajit the product contains.
Resin is normally the least formulated form, but the format itself doesn't prove purity or authenticity. Testing provides much stronger evidence. It's one of the reasons we've chosen to focus on resin at One Life Foods, alongside the testing that sits behind every batch we sell.
Resin
Normally the least formulated format. Doesn't prove purity or authenticity on its own.
Powder & liquid
Can be legitimate. Check the actual Shilajit content, added ingredients and concentration.
What matters most
Finished-product testing tells you far more than the format alone.
What to Look for When Buying Shilajit
A practical checklist covering laboratory reports, ingredients, origin, purification, dosage and the claims that deserve closer examination.
How Much Should Shilajit Cost?
Why Shilajit prices vary, what unusually cheap products may be missing and why a high price alone doesn't prove quality.
The UK Shilajit Market in 2026
An assessment of the current UK category, including extract equivalents, influencer marketing, testing claims and rapidly expanding product formats.
Is Shilajit a Novel Food in the UK? The Supplement Exception Explained
What the 2020 Mumijo determination actually says, why the supplement exception is narrower than most brands imply, and why non-novel status isn't the same as approval.
Gold Grade Shilajit: What the Term Really Means
Why "gold grade" isn't a regulated or standardised classification and what to assess instead of relying on supplier-defined labels.
Sun-Dried Shilajit: Does the Processing Claim Matter?
What sun drying can mean, whether the method determines quality and why a romantic process story isn't a manufacturing specification.
How Much Shilajit Is Actually in Your Shilajit?
Why jar weight isn't the same as actual Shilajit content, how water content and analytical method affect the numbers, and why a higher concentration alone doesn't prove a better product.
Shilajit Forms Compared: Resin, Liquid and Powder
How the main product formats differ in formulation, convenience, concentration and transparency, without assuming that format alone proves quality.
Applying the checklist
How our own range answers the questions above
We've just spent seven articles telling you what to demand from a Shilajit brand. Here is our range measured against the same criteria, with certificates published in full so you can check rather than take our word for it.
Pure Siberian Altai Resin
The only origin we've screened for solvents, PAHs and microbiology as well as heavy metals. Broadest mineral spread of the four.
Pure Kashmiri Resin
Highest humic acid content at 18.59% alongside 44.87% fulvic, a less aggressively purified resin that keeps more of the mineral matrix.
Pure Hunza Resin
64.13% fulvic under ISO 19822:2018, our highest. That comes with the lowest humic content at 1.16%. A trade-off, not a win.
Each origin is tested as finished product by an independent laboratory, with the method stated and the certificate published. Read the results before you buy
Testing & quality
Shilajit testing answers two questions: what does the product contain, and has it been screened for relevant contaminants?
A useful laboratory report should identify the sample, laboratory, test date, analytical method and results. Depending on its purpose, testing may examine fulvic compounds, total humic substances, mineral composition, heavy metals, microorganisms, mycotoxins, polycyclic aromatic hydrocarbons and solvent residues.
The method matters as much as the headline result. Fulvic acid percentages produced through different methods may represent different fractions, so they shouldn't automatically be compared as equivalent measurements.
How We Test Our Shilajit
The laboratories, methods and published results behind the One Life Foods range, including humic substances, minerals and contaminant screening.
How to Read a Shilajit Lab Report
How to interpret COAs, sample details, ISO 19822 results, heavy-metal values and the gaps a certificate may not reveal.
How Shilajit Testing Works
An overview of the tests used for composition and safety, why different laboratories produce different results and what most brands leave unexplained.
PAHs, Solvents and Microbial Testing in Shilajit
Why heavy metals aren't the only contaminants worth considering and what broader finished-product screening can reveal.
Informal Shilajit Tests vs Laboratory Reports
Why dissolving, freezing, stretching and burning Shilajit reveal far less about purity and safety than a relevant laboratory report.
Is Your Shilajit Spiked? Why Some Products Feel Instant
Why authentic Shilajit shouldn't necessarily feel like caffeine or pre-workout, and when an unusually immediate effect deserves scrutiny.
Why Supplier-Provided Shilajit Tests Need Scrutiny
The potential conflict of interest in supplier certificates and why buyer-commissioned, finished-product testing provides stronger evidence.
The Shilajit Flame Test: What It Can and Can't Prove
Why setting resin on fire doesn't establish its identity, potency, composition or freedom from contamination.
Heavy Metals in Shilajit: Risk, Context and Testing
Why trace metals can occur in geological materials, how concentration and limits should be interpreted and why the actual report matters.
See it for yourself
See the standards applied to our own Shilajit
It's easy to describe what a Shilajit product should provide. The more meaningful test is whether we apply those standards to our own range.
We publish the laboratories, analytical methods and available results for every Shilajit origin we stock. Review the results first, then decide whether the product meets your standards.
Source & origin
Shilajit is sourced from several mountainous regions, including the Himalayas, Altai Mountains, Kashmir and the Karakoram. Products are often marketed as Himalayan, Altai, Mongolian, Kashmiri or Hunza Shilajit.
Origin may influence mineral composition, humic balance and texture, but it doesn't determine product quality on its own. A mountain name can't tell you how carefully the material was collected, purified, stored or tested.
Composition, by origin
| Origin | Fulvic acids hydrophobic fraction, ISO 19822:2018 |
Humic acids ISO 19822:2018 |
Water content | Elemental signature | Price |
|---|---|---|---|---|---|
| Siberian Altai | 41.19% | 5.8% | Not published | Iron 923 mg/kg, the highest of the four. Twenty-two elements reported, the widest spread. | £34.99 25g · £1.40/g |
| Kashmiri | 44.87% | 18.59% | 4.67% | Strontium 364 mg/kg and boron 218 mg/kg, both the highest of the four. | £45.99 25g · £1.84/g |
| Mongolian Altai | 54.91% | 15.67% | 7.42% | Sodium 867 mg/kg against 570 in Siberian Altai, but lower phosphorus, aluminium and manganese. | £44.99 25g · £1.80/g |
| Hunza | 64.13% | 1.16% | 2.57% | Modest overall profile, consistent with a more heavily purified resin. | £44.99 25g · £1.80/g |
Read the two humic columns together rather than chasing the fulvic figure alone. Hunza has our highest fulvic result at 64.13%, but the lowest humic at 1.16% and a comparatively thin mineral profile, which is the signature of a more aggressively purified resin. Kashmiri and Siberian Altai return lower fulvic figures while retaining far more of the humic and mineral matrix. Whether that trade-off is worth making is an open question, and we don't think it has one right answer.
These percentages are only comparable because one laboratory produced all of them using one method. Titration-based methods, which many suppliers use, systematically inflate the figure. A resin reporting 80% by titration may return around 40% under ISO 19822:2018. If you're comparing our numbers against a brand that hasn't named its method, you aren't comparing like with like. See which fulvic acid test you can trust.
What we've screened for, and what we haven't
| Origin | Heavy metals | Mycotoxins | Solvent residues | PAHs | Microbiology |
|---|---|---|---|---|---|
| Siberian Altai | Tested Pb, Cd, Hg all <0.2 mg/kg; As 0.7 mg/kg | Not yet | Tested 7 solvents, all <10 mg/kg | Tested 4 PAHs, all <0.2 mg/kg | Tested Salmonella not detected |
| Kashmiri | Tested Below 4 mg/kg. Accredited except mercury | Tested 8 parameters, all below LOD | Not yet | Not yet | Not yet |
| Mongolian Altai | Tested Below 4 mg/kg. Accredited except mercury | Not yet | Not yet | Not yet | Not yet |
| Hunza | Tested Below 4 mg/kg. Accredited except mercury | Tested 8 parameters, all below LOD | Not yet | Not yet | Not yet |
Heavy metals results for Kashmiri, Mongolian Altai and Hunza carry PCA accreditation (AB 1755) under ILAC-MRA, meaning they're recognised as equivalent to accredited results in over 100 countries. Two details worth stating rather than glossing: the accredited method quantifies between 4 and 200 mg/kg, so "below 4 mg/kg" is as precise as it gets at the bottom end, and mercury is the one element run on a method the laboratory doesn't hold accreditation for. Mycotoxin screening is arranged through Nuscana Biotechnika Laboratoryjna, who subcontract the analysis to a laboratory accredited under AB 1095. We're extending solvent, PAH and microbiological screening across the remaining origins.
These certificates were produced at different times, because each covers the batch it was drawn from rather than a period. Kashmiri was analysed in spring 2026, Siberian Altai in late 2025, Hunza and Mongolian Altai in early 2024, which reflects how quickly each origin sells rather than how often we test. How we handle batches, storage and certificate dates.
Elemental profile as a geographic fingerprint
There's a use for mineral data the industry almost never mentions. Because different mountain systems have fundamentally different geology, the resin formed within them carries a distinct mineral signature, and that signature is difficult to fake.
Strontium substitutes for calcium in carbonate minerals, so it runs high in Shilajit from limestone regions. Our Kashmiri sample returned 364 mg/kg, the highest of any origin we stock, which is what a genuine Kashmir Valley source should look like. Siberian Altai returned 923 mg/kg iron, consistent with the region's ancient iron-rich formations.
Siberian and Mongolian Altai share a mountain range and a name, yet their profiles diverge. Mongolian runs higher in sodium, at 867 mg/kg against 570, while Siberian runs higher in phosphorus, aluminium and manganese. The southern Mongolian section carries more sedimentary and volcanic influence than the ancient Precambrian formations further north.
One caution when reading any of these numbers, including ours: certificates often report some elements as a percentage and others in mg/kg. 0.17% is 1,700 mg/kg, so a figure quoted in mg/kg can look larger than a percentage figure that is actually several times bigger. Convert everything to the same unit before you compare.
A mineral profile that contradicts the claimed origin is a meaningful red flag. One that matches it isn't proof on its own, but it's a data point an adulterated or mislabelled product would struggle to reproduce convincingly. It's the closest thing this category has to an origin check that doesn't rely on trusting the seller.
Is Himalayan Shilajit Really the Best?
Why the Himalayas remain historically important, how modern supply chains complicate origin claims and why geography alone doesn't establish quality.
Which Shilajit Is Best? Altai, Mongolian, Kashmiri and Hunza
A comparison of four regional profiles, their measured differences and the reasons no origin is automatically best for everyone.
Kashmiri Shilajit: Tradition, Purification and the Myth of Raw
A closer look at Kashmiri Shilajit, its regional context and why traditional sourcing doesn't remove the need for careful purification.
Does Altitude Matter for Shilajit Quality?
Why exact altitude claims are difficult to verify and why geology, processing and testing provide more useful quality information.
Is Raw Shilajit Better? Why Purification Matters
What "raw" can mean, which unwanted materials purification is intended to remove and why minimal processing isn't automatically safer.
How Was Shilajit Traditionally Purified? Triphala, Fire, Sunlight and Ayurvedic Shodhana
What Ayurvedic Shodhana actually involved, why it can plausibly remove debris but not dissolved heavy metals, and why tradition alone isn't evidence of safety.
From Rock to Resin: How Shilajit Is Extracted, Filtered and Processed Today
A stage-by-stage look at modern extraction and filtration, why neither small-batch nor industrial processing is automatically better, and why finished-product testing matters more than the method.
Siberian Altai Shilajit: Mumiyo, Cold Mountains and Modern Testing
The Central Asian Mumiyo tradition, the geology of the Altai region and the point where folklore meets modern analytical standards.
Altai vs Himalayan Shilajit: Which Is Better?
A direct comparison of two widely marketed origins, including composition, sourcing, testing and the limits of regional generalisations.
The deeper science
How Shilajit works can't be reduced to one ingredient or one established mechanism. Its humic substances, fulvic compounds, minerals and smaller organic constituents may behave differently during preparation, digestion and metabolism.
Research has explored compounds associated with Shilajit in relation to redox balance, mitochondrial biology and connective-tissue processes. These articles examine what has been measured, what remains hypothetical and why a single fulvic acid percentage can't describe the complete matrix.
Fulvic Acid in Shilajit: Which Test Can You Trust?
Why fulvic acid percentages vary so widely, what different laboratory methods measure and why results aren't always directly comparable.
Shilajit Absorption: Bioaccessibility, Absorption and Bioavailability
The difference between release during digestion, entry into circulation and delivery to tissues, plus what the evidence actually supports.
Humic Acid in Shilajit: Why the Wider Matrix Matters
What humic acid is, how it differs from the more soluble fulvic fraction and why it contributes to a broader view of Shilajit composition.
Dibenzo-Alpha-Pyrones in Shilajit: What They Are and Why They Matter
What DBPs are, why they're discussed in relation to redox and mitochondrial biology and what remains unknown about normal Shilajit servings.
When a High Fulvic Acid Percentage Can Mislead
Why a larger percentage may reflect a broader test method rather than more of the same specifically defined fulvic fraction.
Why Small Doses of Shilajit Matter
Why biological relevance isn't determined by ingredient weight alone and how small amounts may be used within wider supplement formulations.
Common questions
Short answers to the questions we are asked most. Each links through to the full article behind it.
What is Shilajit?
Shilajit is a naturally occurring organic-mineral substance found in certain mountainous rock systems. It isn't a single compound but a variable natural matrix of fulvic compounds, humic substances, trace elements and smaller organic components, thought to form over very long periods as biological material is degraded and humified in mineral-rich environments. Composition varies by source.
Is Shilajit safe to take?
Purified, properly tested Shilajit has generally been well tolerated in the human studies available. Safety depends on both product and person. Unpurified material can carry heavy metals, PAHs, solvent residues or microbial contamination, which is why an independent lab report matters more than any origin claim. If you're pregnant, breastfeeding, taking medication or managing a health condition, speak to your GP first.
How much Shilajit should I take, and when?
There's no universal dose. Human studies have commonly used specific purified preparations at around 250 to 500 mg daily, but products vary in concentration and composition, so follow the instructions for the product you're actually taking rather than estimating a pea-sized amount. Timing is largely preference, and consistency matters more than the time of day.
Which Shilajit is best: Himalayan, Altai or Kashmiri?
Origin influences composition but is a weaker quality signal than the industry implies. "Himalayan" is often a marketing term rather than a geographic one, and altitude claims are largely unverifiable. Purification and independent finished-product testing tell you far more than a mountain range. A mineral profile can help confirm a claimed origin; the name alone cannot.
Which Shilajit Is Best? Altai, Mongolian, Kashmiri and Hunza
Is a higher fulvic acid percentage better?
Not necessarily, and sometimes the opposite. Different laboratory methods produce very different fulvic figures for the same sample, so a percentage means nothing unless the method is stated. A titration result near 80% may return around 40% under ISO 19822:2018. Unusually high figures can also indicate heavy purification or humic-derived bulking.
Does the flame test or dissolve test prove Shilajit is real?
No. Burning, freezing or dissolving Shilajit tells you very little about purity, potency or contamination, and adulterated products pass these tests easily. A batch-specific, independently produced laboratory report is the strongest objective evidence normally available to a buyer, though a report can still be incomplete, poorly matched to the batch, or misread.
Does Shilajit increase testosterone?
There's some human research suggesting a modest effect in certain groups, with a plausible biological mechanism. The evidence base is small, the studies vary in quality, and effect sizes are far more moderate than social media suggests. It's a reasonable thing to be interested in, but not a substitute for sleep, training or medical treatment.
Resin, powder or liquid: which form should I buy?
Resin is normally the least formulated format and often contains fewer carriers or added ingredients, which makes the finished material easier to interpret. That doesn't make every resin authentic or pure. Powders, liquids, capsules and gummies can be legitimate, so check the actual Shilajit content, added ingredients, concentration and finished-product testing.
Does Shilajit really contain 85 minerals?
Shilajit contains a broad range of trace minerals, but 85 isn't a verified specification. It's a number repeated until it became fact by attrition. The exact profile varies by source, and many detected elements are present in quantities far too small to be nutritionally meaningful. Detection isn't the same as a useful dose.
Should I worry about heavy metals in Shilajit?
It's a real risk worth taking seriously. Shilajit is a geological material, so trace metals are expected. The questions are whether they fall within safe limits and whether the brand has tested independently for them. A brand that can't show you the numbers has effectively answered the question.
How we research this guide
The evidence around Shilajit is uneven. These are the rules we apply so that unevenness is visible to you rather than smoothed over.
- We prioritise primary sources and human research over secondary summaries, press coverage and supplier literature.
- We distinguish between human, laboratory, animal and traditional evidence, and we say which one a claim rests on.
- We don't generalise a finding from one studied preparation to all Shilajit. A result from a specific purified extract is a result about that extract.
- We interpret laboratory results alongside the analytical method that produced them, because the method can change the number more than the material does.
- We update the guide when meaningful evidence or standards change, and we date every review.
Ready to compare the evidence?
You've read what we think a Shilajit product should be able to show you. The fair next step is to check whether ours does. Review the laboratory results first, then compare the resins against each other.
All articles are written and maintained by the One Life Foods team, under the direction of founder Chris Simon, who has worked with Shilajit since 2017 with a focus on independent testing, analytical methods and responsible product sourcing. We don't take advertising or affiliate fees from other brands, and we don't rank or recommend competitors for payment. Where the evidence is weak, we say so, including when it's evidence that would help us sell something.
If you have a question not answered here, get in touch.
Last reviewed: August 2026