The Prime Labs Shilajit Guide

Shilajit Supplements,
Done Right.

Himalayan mineral pitch, used for centuries and now backed by a small but real body of human research. Here's what shilajit is, what the studies show, and how to take it without wasting money on a product that doesn't match its label.

Why Men Take It

Four Reasons Shilajit Earns a Spot in Your Stack

Healthy Testosterone

In a 90-day study of healthy men aged 45–55, purified shilajit supported healthy testosterone levels within the normal range.*[1]

Strength Under Fatigue

At 500 mg a day for eight weeks, active men held onto more of their strength after a fatiguing workout.*[2]

Connective Tissue

In the same study, a subgroup on 500 mg showed lower levels of a collagen-breakdown marker, a sign of connective-tissue support.*[2]

Cellular Energy

Fulvic acids and trace minerals may support mitochondrial energy production, the power plants inside your cells.*

The Basics

What Is Shilajit?

Shilajit is a sticky, brown-to-black mineral pitch that seeps from rock in high mountain ranges, most famously the Himalayas, at altitudes of roughly 1,000 to 5,000 meters.[3] It forms over centuries as plant matter breaks down under pressure. The result is a dense mix of humic substances, minerals, and trace compounds.

Forget the "ancient superfood" hype for a second. Here's what's actually in it. Processed shilajit typically contains 50–60% fulvic acids, small amounts of dibenzo-α-pyrones (DBPs), and 10–15% minerals, mainly potassium, calcium, and magnesium.[4] Fulvic acid is an organic compound formed when plant matter decomposes, and it helps carry minerals. DBPs are antioxidant compounds that researchers link to how shilajit acts inside cells. The minerals come from the rock itself.

Composition varies a lot by where and how shilajit is collected.[3] That's why processing and standardization matter so much.

How It Works

  • Fulvic acids: carry minerals and support how cells use them.
  • DBPs: antioxidant compounds tied to mitochondrial function, the energy side of the story.
  • Trace minerals: potassium, calcium, magnesium and more, all from the rock itself.
  • Consistency: results in studies came from daily use over 8–12 weeks, not single doses.

What It Won't Do

  • It's not a stimulant. No caffeine-style jolt.
  • It's not a hormone or a replacement for medical care.
  • It won't replace training, sleep, or protein.
  • It doesn't work overnight. Plan on weeks, not days.

Where Does Shilajit Come From?

Shilajit has been a staple of Ayurveda and Siddha, India's traditional medicine systems, for centuries. It's classed there as a rasayana, a rejuvenating tonic taken to support vitality and quality of life.[3] Traditional use also spread across Central Asia, where the same substance goes by names like mumie or moomiyo.[4]

Tradition explains why men are curious. A 2011 review of the traditional literature concluded that shilajit's bioactivity still lacked substantial evidence and called for better-controlled studies.[3] Those studies started arriving later, and they're the part worth your attention.

The Research

What Does the Research Show?

Testosterone: One Solid Trial

In a randomized, double-blind, placebo-controlled study, healthy men aged 45–55 took 250 mg of purified shilajit twice a day for 90 days.[1] Compared with placebo, the shilajit group showed significantly higher total and free testosterone, plus higher DHEA-S, a hormone precursor, while LH (the brain signal that tells your body to make testosterone) held steady.[1] That's the basis for the structure/function claim: shilajit supports healthy testosterone levels within the normal range.* Read the full breakdown in Shilajit and Testosterone: What the Research Actually Shows.

Strength Under Fatigue: Promising

Sixty-three recreationally active men took 250 mg, 500 mg, or a placebo daily for eight weeks, then went through a fatiguing leg workout.[2] The 500 mg group retained more strength than the low-dose group, and among the stronger participants it also beat placebo.[2] In a subgroup analysis, the 500 mg group also showed lower resting levels of hydroxyproline, a marker of collagen breakdown, which is why connective-tissue support is part of the story.*[2]

Muscle Tissue: Early Signals

A small 2016 open-label study took muscle biopsies from overweight adults after eight weeks of taking 250 mg twice daily. The researchers found more activity in genes tied to collagen and the extracellular matrix, the scaffolding that holds muscle fibers together.[5] It's mechanistic data, not a performance outcome, but it lines up with the strength findings.

Worth knowing: all three studies used the same branded shilajit extract (PrimaVie®, standardized to at least 50% fulvic acids), and at least two were funded by that extract's manufacturer.[1][2] The findings are ingredient-level evidence. They show what that purified extract did at these doses, not a promise for any single bottle, ours included. For the full list, including what's still unproven, see Shilajit Benefits for Men: What the Evidence Supports.

The Big Question

Resin or Capsule?

Resin is the traditional form. Capsules are the measured one. Both come from the same raw material. The difference is how accurately you dose it and how easily you can verify what's in it.

Resin
  • Traditional paste, dissolved in warm water
  • Dosed by eye: a "pea-sized" scoop varies from day to day
  • Strong, bitter, earthy taste
  • Harder to standardize and label precisely
Capsule
  • Measured 500 mg in every serving
  • Matches the daily amount used in the published strength research
  • No taste, no mess, fits in a gym bag
  • Standardized: fulvic acid content stated on the label

We make shilajit in capsules because we want every serving to deliver a known amount. The full breakdown, including why some people still prefer resin, is in Shilajit Resin vs Capsules: Which Form Is Right for You.

Quality

Why Does Purification Matter So Much?

Raw shilajit comes out of the rock with everything the rock contains, and that can include heavy metals such as lead, arsenic, cadmium, and mercury.[6] Without lab testing there's no way to know what's in a given batch.[6] This isn't a theoretical risk. One analysis of Ayurvedic products sold online found detectable lead, mercury, or arsenic in about one in five.[7] A 2025 study detected thallium in both raw shilajit and finished supplements, sometimes at higher levels in the supplements.[8]

Counterfeit and adulterated products are also sold as shilajit.[4] And the FDA doesn't approve supplements before they reach the shelf, so quality is the manufacturer's responsibility.[9] That's why the brand behind the bottle matters.

Here's what to look for. Purified shilajit, not raw. A stated fulvic acid standardization. Third-party testing. A single disclosed dose instead of a proprietary blend. Prime Labs Shilajit is purified through multi-stage processing, standardized to 20% fulvic acid, and third-party tested. Our full checklist is in Best Shilajit Supplement: 6 Quality Markers That Matter, and what "clinically studied" means for any product is covered in PrimaVie Shilajit: What "Clinically Studied" Actually Means.

How to Take It

How Much Shilajit Should You Take?

Take 500 mg a day with food. That's the daily amount behind the published human research: 250 mg twice daily in the testosterone and muscle-tissue studies, and 500 mg once daily in the strength study.[1][2][5] Short-term use at up to 500 mg a day is considered possibly safe, but long-term data are limited.[6]

  • Dose: one 500 mg capsule daily, preferably with a meal.
  • Timing: morning, 30–60 minutes before training, or evening. Pick one and stay consistent.
  • Timeline: in research, strength retention under fatigue was measured after 8 weeks, and testosterone support after 90 days. Results may vary.*
  • Talk to your doctor first if you take prescription medication, have a medical condition, or have been told to limit iron or other minerals.[10]

For timing, stacking, and who should skip it, read Shilajit Dosage: How Much Should Men Take Daily? Training hard too? Shilajit pairs naturally with creatine. See our Creatine guide.

Safety

Is Shilajit Safe to Take Every Day?

Purified shilajit at up to 500 mg a day is considered possibly safe for short-term use. Long-term data are limited, and contamination is the biggest real-world risk.[6]

The strength trial reported no adverse events, and the muscle-tissue trial found the supplement well tolerated, with no adverse changes in standard blood markers.[2][5] A shilajit safety review also reported wide safety margins in animal and human studies.[4] That's reassuring, but it covers purified material over weeks, not raw pitch over years.

The U.S. Department of Defense's supplement-safety program lists possible reactions, including allergic reactions, increased blood pressure, and dizziness, and warns about heavy metals in untested products.[6] So keep it simple:

  • Only take purified, third-party-tested shilajit.
  • Stay at the studied dose of 500 mg a day.
  • Check with your doctor first if you take medication, have a medical condition, have high blood pressure, or have been told to limit minerals.[10]
  • Avoid stacking it with high-dose iron or calcium supplements.

What Should You Expect, Week by Week?

Slow, steady support. Shilajit rewards consistency, and the research timeline runs in weeks and months.*[1][2]

Weeks 1–7

Build the habit. One capsule a day with a meal. Don't expect to feel a jolt. It isn't a stimulant.

Week 8

The point where research measured strength retention under fatigue at 500 mg a day.*

Weeks 8–12

Keep going. Every benefit in the research came from uninterrupted daily use.

Day 90

The point where research measured healthy testosterone support within the normal range.*

Results may vary. Sleep, training, and nutrition are the foundation. Shilajit builds on top of them.

Which Shilajit Myths Should You Ignore?

The internet has turned shilajit into a do-everything supplement. It isn't one. Here's what to tune out.

  • "Raw is more potent." Raw shilajit is unprocessed and untested. The human research used purified extract.[1][2]
  • "The flame test proves it's real." Home tests can't detect heavy metals or confirm what's in a batch. Only a lab can.[6]
  • "More is better." The key trials used 500 mg a day. There's no evidence higher amounts work faster.
  • "It works in days." The research effects appeared after 8–12 weeks of daily use.[1][2]
  • "It fixes everything from memory to aging." Those claims rest mainly on animal and lab studies, not controlled human trials.[6]

Who It's For

Who Should Take Shilajit?

Shilajit is for men 30+ who train, want to support healthy testosterone within the normal range, and will commit to a daily routine for three months.*

  • Men 40+: the testosterone trial studied healthy men aged 45–55.[1]
  • Men who push hard in the gym: the strength and connective-tissue findings came from active men doing fatiguing work.[2]
  • Men building a simple, consistent stack: one capsule a day pairs easily with creatine and a pre-workout.

It's not for anyone looking for an overnight change or trying to handle a medical concern on their own. If you think something's off with your hormones, see a doctor and get tested first.

Your Stack

How Does Shilajit Fit a Training Stack?

Think of shilajit as the daily foundation piece, not the pre-workout hype piece. It works quietly in the background while creatine and training do their jobs.

Shilajit's research benefits are strength retention under fatigue and connective-tissue support, and they build over weeks.*[2] Creatine works on a different system: it helps your muscles regenerate energy during short, intense efforts. The two don't compete, so taking both is simple.

01

The shilajit

One capsule daily with a meal, every day, training or not.

02

The creatine

Your daily dose, taken whenever it fits your routine. See our Creatine guide.

03

The pre-workout (optional)

Before training. The shilajit adds no caffeine, so there's nothing to double up on.

One rule: if you also take a testosterone-support formula, check the label. Some already contain shilajit, so keep your total at 500 mg a day.

Shop the Lineup

Prime Labs Shilajit

500 mg purified Himalayan shilajit, standardized to 20% fulvic acid. 60 capsules, one a day.

Prime Labs Shilajit black bottle with blue bull mascot, 500mg purified Shilajit, 60 capsules, labeled energy, vitality and testosterone support
Purified Himalayan · 500 mg · 20% Fulvic Acid

Prime Labs Shilajit

500 mg purified Himalayan shilajit, standardized to 20% fulvic acid. 60 capsules, one a day.

What's in every capsule

  • Purified Himalayan Shilajit: sourced from high-altitude mineral deposits, multi-stage purification.
  • 500 mg per capsule: the daily amount used in the published strength research.
  • Built around the 500 mg daily amount studied for healthy testosterone within the normal range and strength under fatigue.*
  • No proprietary blend. One ingredient, one disclosed dose, third-party tested.

Quick Answers

Shilajit FAQ

In human research, purified shilajit supported healthy testosterone levels within the normal range in men aged 45–55 and helped recreationally active young men retain strength under fatigue.*[1][2] It also provides fulvic acids and trace minerals that may support cellular energy.*

Daily use at up to 500 mg is considered possibly safe in short-term studies, though long-term data are limited.[6] The bigger risk is contamination, so choose a purified, third-party-tested product and check with your doctor if you take medication.[6][10]

Plan on weeks. Strength retention under fatigue was measured after 8 weeks, and testosterone support after 90 days.*[1][2] Results may vary.

No. It contains no caffeine and won't give you a jolt. Any energy support builds gradually at the cellular level.*

There's no head-to-head research on the two forms. Capsules give you a measured, standardized dose every time, which is why we make ours that way.

No. Fulvic acid is the largest active fraction of shilajit, but shilajit also provides dibenzo-α-pyrones and minerals such as potassium, calcium, and magnesium.[4] The human trials studied purified shilajit as a whole, not isolated fulvic acid.[1][2]

It's Himalayan shilajit, sourced from high-altitude mineral deposits and put through multi-stage purification. It's standardized to 20% fulvic acid and third-party tested.

Yes. They work on different systems, so there's nothing to double up on. Take shilajit with a meal, and check with your doctor if you have a medical condition.

The Science

Research Behind This Guide

Randomized controlled trial

Pandit S, Biswas S, Jana U, De RK, Mukhopadhyay SC, Biswas TK (2016). Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers.

Andrologia, 48(5), 570–575.

View study
Randomized controlled trial

Keller JL, Housh TJ, Hill EC, Smith CM, Schmidt RJ, Johnson GO (2019). The effects of Shilajit supplementation on fatigue-induced decreases in muscular strength and serum hydroxyproline levels.

Journal of the International Society of Sports Nutrition, 16(1), 3.

View study
Review

Wilson E, Rajamanickam GV, Dubey GP, et al. (2011). Review on shilajit used in traditional Indian medicine.

Journal of Ethnopharmacology, 136(1), 1–9.

View study
Review

Stohs SJ (2014). Safety and efficacy of shilajit (mumie, moomiyo).

Phytotherapy Research, 28(4), 475–479.

View study
Open-label study

Das A, Datta S, Rhea B, Sinha M, Veeraragavan M, Gordillo G, Roy S (2016). The Human Skeletal Muscle Transcriptome in Response to Oral Shilajit Supplementation.

Journal of Medicinal Food, 19(7), 701–709.

View study
Government resource

Operation Supplement Safety (OPSS), Uniformed Services University (2024). Shilajit as a Dietary Supplement Ingredient.

OPSS / U.S. Department of Defense.

View study
Peer-reviewed

Saper RB, Phillips RS, Sehgal A, et al. (2008). Lead, mercury, and arsenic in US- and Indian-manufactured Ayurvedic medicines sold via the Internet.

JAMA, 300(8), 915–923.

View study
Peer-reviewed

Kamgar A, Zembrzuska J, Zembrzuski W, Kaykhaii M (2025). Quantifying of thallium in Shilajit and its supplements to unveil the potential risk of consumption of this popular traditional medicine.

BMC Chemistry, 19, 20.

View study
Government resource

U.S. Food and Drug Administration (2026). Questions and Answers on Dietary Supplements.

FDA.

View study
Government resource

National Center for Complementary and Integrative Health (

NCCIH.

View study

Ready to Add Shilajit to Your Stack?

500 mg of purified Himalayan shilajit. One capsule a day. No proprietary blend.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.