The complete explainer · 6 minute read

What is shilajit, actually

Everything on this page is checkable. Where the evidence is strong we say so, where it is thin we say that too. By the end you will know what shilajit is, how it forms, how people take it, and what the research does and does not show.

Chapter 1

Not a plant. Not a mineral. Both.

Shilajit is a blackish-brown resin that seeps from layers of rock in high mountain ranges, most famously the Himalayas. It forms where ancient plant matter has been compressed and transformed inside the rock.

Chemically it is a phyto-mineral complex: humic substances (including fulvic acid), trace minerals and amino acids in one material. At room temperature it is soft and tar-like. Warm it slightly and it flows; cool it and it becomes brittle.

Chapter 2

How it forms

Many brands claim shilajit takes "millions of years" to form. The geological evidence supports centuries to millennia. Still remarkable. No exaggeration needed.

Macro of mineral-rich shilajit resin and rock

01

1 · Plant matter

Mosses, lichens and other high-altitude plants are trapped in rock layers as mountains form and shift.

02

2 · Transformation

Over centuries to millennia, pressure, temperature swings and microbial action break the plant matter down into humic substances.

03

3 · Seepage

In summer, warmth softens the resin and it seeps out of rock crevices, typically between 1,000 and 5,000 metres altitude.

04

4 · Collection

Raw resin is collected by hand. At this stage it still contains rock dust, plant debris and possible contaminants. Purification comes next, and it decides everything.

Why quality matters

Chapter 3

What is in it

Composition varies by source and purification, which is why testing each batch matters. These are figures from our available Eurofins test.

~79%

Fulvic acid

The most-studied fraction of shilajit and the number quality is usually judged by. Measured by gravimetry.

4.6 g

Humic acid per 100 g

The broader family of humic substances that give the resin its dark colour and density. Measured by titrimetry.

84+

Trace minerals reported

Literature reports a wide mineral spectrum in ionic form. Exact profile varies by source region and batch.

1

Ingredient

Pure is shilajit resin and nothing else. Orange and Strawberry add a natural flavour plus the other ingredients listed on their labels.

Chapter 4

Resin, powder or capsules

Shilajit is sold in three forms. The differences are about processing, not marketing. We sell resin because it is the least processed form.

Resin

What we sell

Processing: minimally processed, filtered and concentrated, not dried or milled.

Typically added: nothing.

Dose control: you portion it yourself, 500 mg at a time.

Verifiable: a resin certificate tests the thing you actually eat.

Powder

Processing: resin is dried at temperature and milled. More steps, more heat.

Typically added: drying carriers such as maltodextrin, often undeclared in the headline.

Dose control: depends on how diluted the powder is.

Verifiable: only if the certificate covers the finished powder, not the input resin.

Capsules

Processing: powder pressed or filled into capsules. The most processed form.

Typically added: fillers, flow agents and the capsule shell.

Dose control: fixed per capsule; actual shilajit content varies widely by brand.

Verifiable: hardest to check. The label mg and the resin-equivalent mg are rarely the same number.

Shilajit resin, powder and capsules side by side comparing formats

None of this makes powder or capsules bad products. It means they have more steps between the rock and you, and each step is something a certificate needs to cover.

Chapter 5

How you take it

About 30 seconds, twice a day.

A hand stirring shilajit resin into a glass of warm water

Portion

Take a rice-grain-sized portion, about 500 mg, with the measuring spoon or a clean utensil.

Dissolve or take direct

Stir it into coffee, tea or warm water until dissolved, or let it melt under your tongue.

Twice daily

Once in the morning, once in the evening. Do not exceed the recommended daily intake.

Keep out of reach of children. If you are pregnant, nursing or on medication, consult your doctor before use.

Chapter 6

What the research actually shows

We grade every topic by the strength of its human evidence. No EFSA-authorised health claim exists for shilajit, so we make none. Where the evidence is thin, we say so.

Preliminary: one or two small human trialsLimited: inconsistent or indirect evidenceUnknown: no adequate human trials

Research desk with a notebook, magnifying glass and a dish of shilajit resin

Testosterone markers

Preliminary

Direct answer: one randomised, double-blind, placebo-controlled trial (Pandit et al., 2016) gave 250 mg purified shilajit twice daily to healthy men aged 45 to 55 for 90 days and reported significantly increased total and free testosterone versus placebo.

Why we grade it preliminary: it is a single study with a small sample, in one age group, and it has not been independently replicated. A promising signal is not the same as an established effect.

Source: Pandit et al., Andrologia, 2016 · dose used: 2 × 250 mg/day

Fatigue & exercise recovery

Limited

Direct answer: a small number of trials (including Keller et al., 2019, on muscular fatigue) suggest possible effects on fatigue-related markers, but samples are small and results inconsistent across studies.

Why we grade it limited: study designs, doses and outcome measures differ too much to support a firm conclusion. More and larger trials are needed before anyone should buy shilajit primarily for this reason.

Source: Keller et al., Journal of the International Society of Sports Nutrition, 2019

Cognition & longevity

Unknown

Direct answer: no adequate human trials exist. Published work (e.g. Carrasco-Gallardo et al., 2012) is preclinical or theoretical. These are cell and animal studies that propose mechanisms, not demonstrations of effects in people.

Why we grade it unknown: mechanisms proposed in a dish are routinely not confirmed in humans. Any brand claiming cognitive or longevity benefits from shilajit is running ahead of the evidence.

Source: Carrasco-Gallardo et al., International Journal of Alzheimer's Disease, 2012 (preclinical)

Safety & heavy metals

Well documented

Direct answer: the documented safety risk in this category is not shilajit itself but raw, unpurified or adulterated product, which can carry lead, arsenic and other heavy metals. This is why purification and independent testing matter more than any benefit claim.

Our answer to it: MountShila resin is screened by Eurofins for arsenic, cadmium, mercury and lead by ICP-MS. Do not exceed the recommended daily intake. If you are pregnant, nursing, or on medication, consult your doctor first.

How each test works: see the Quality page

Tradition, kept separate

Historical record

Direct answer: shilajit has been used traditionally in Ayurvedic medicine as a rasayana. That is a documented historical fact about how it has been used, not evidence that it works.

We keep tradition and science in separate sentences on purpose. Centuries of use tell you about cultural importance and observed tolerability, not about efficacy. When the two blur into one sentence, that is marketing, not evidence.

Our standard for this chapter. Every topic above is graded against human-trial evidence only. Preclinical findings are labelled as such. This page is reviewed against the current literature and updated when new trials publish. Last reviewed July 2026. Nothing here is medical advice.

The full library

Every topic, honestly answered

Science & composition

Black shilajit resin dissolving into warm water in golden swirls

Fulvic acid, explained

What it is chemically, how it is measured, and what is and is not established.

Shilajit resin dissolving in water showing darker humic and golden fulvic tones

Humic acid vs. fulvic acid

Is shilajit "the same as" fulvic acid? No, and here is the real difference.

Macro of mineral rich shilajit resin and rock with tiny glinting flecks

The 80+ trace minerals

What the mineral count actually means, and why it is not a quality guarantee on its own.

Ayurvedic still life with a brass bowl, mortar and pestle and shilajit resin

Shilajit in Ayurveda

The real history, and what it does and does not prove.

Core benefits by audience

Benefits: what evidence shows

Every commonly claimed benefit, graded honestly against current human research.

A man in a kitchen in morning light holding a warm mug

Shilajit for men

Testosterone, erectile dysfunction and fertility, graded honestly.

A woman by a window holding a warm mug of tea in morning light

Shilajit for women

What we actually know about menopause, hormones and fertility.

An athlete resting after a workout holding a water bottle

Shilajit for athletes

Fatigue markers versus direct performance claims.

Niche & emerging claims

A calm study desk with an open book, reading glasses and a warm mug

Cognitive function

Memory and focus claims, checked against what human trials actually show.

A minimalist bathroom counter with a warm mug and a folded towel

Skin and hair

Separating marketing from evidence for hair growth and anti-aging claims.

A glass of warm water beside a tape measure on a kitchen counter

Weight loss

Is shilajit a fat burner? No, and here is why we say that plainly.

A glass of warm water with shilajit resin dissolving into amber swirls

Gut health

Digestion and microbiome claims, checked against the actual research.

Dosage, usage & forms

Rice grain sized portion of shilajit resin on a spoon showing a single dose

Dosage guide

What 500 mg twice daily looks like in practice, and how to start out.

How to take it

Method and timing: what is proven versus what is just preference.

Shilajit resin, powder and capsules side by side comparing the formats

Resin vs. powder vs. capsules

Why the format changes what you can actually verify.

Two spoons of shilajit resin showing texture differences for storage

Storage and shelf life

Why texture changes with temperature, and what actually signals a problem.

Safety, risk & interactions

Hand holding a spoon with a small dose of shilajit resin over a warm mug

Is shilajit safe?

Contamination risk, general use guidance, and who should not take it.

A glass of water and a spoon with a little shilajit resin on a counter

Side effects

What to actually expect, without an invented symptom list.

A weekly pill organizer and medication beside a mug and a spoon of shilajit resin

Medication interactions

What to check first before combining shilajit with medication.

A pregnant woman holding a warm mug in soft morning light

Pregnancy and breastfeeding

Why we recommend checking with a doctor first.

Authenticity, quality & lab testing

Certificate of analysis

How to read one from any brand, and our own Eurofins result as a worked example.

Two spoons comparing genuine glossy shilajit resin with a dull imitation

Real vs. fake shilajit

Why the popular home tests do not work, and what actually verifies authenticity.

Shilajit resin sample placed into a lab test vial for heavy metal testing

Heavy metals

Shilajit's one documented real safety risk, and how it is tested for.

A raw shilajit rock chunk beside clean purified glossy resin

Raw vs. purified

Why "raw" shilajit is a real safety concern, not a purity bonus.

Comparisons

Shilajit resin and ashwagandha root side by side in small dishes

Shilajit vs. ashwagandha

Chemically unrelated, studied for different outcomes.

Shilajit resin and white creatine powder side by side in small dishes

Shilajit vs. creatine

Different jobs, and very different evidence maturity.

Shilajit resin and tongkat ali root side by side in small dishes

Shilajit vs. tongkat ali

Two early-stage testosterone claims, compared honestly.

Shilajit resin in a mountain rock crevice with distant ranges behind

Himalayan vs. Altai origin

Does where it comes from actually determine quality?

Buying guide

Hands inspecting a spoon of shilajit resin with a magnifying glass

How to choose a brand

The red flags checklist for the whole category.

A spoon of shilajit resin beside a small brass balance scale

Price guide

What you are actually paying for, and why cheap shilajit is a warning sign.

A smartphone showing star ratings beside a warm mug

Reading reviews critically

Why a five-star review is not the same evidence as a clinical trial.

A plain kraft parcel on a kitchen counter in daylight

Buying in Europe

Legal status, vegan and halal status, answered honestly.