What Is Shilajit? The Himalayan Resin That Bodybuilders, Biohackers and Tibetan Yak Herders All Reached For

Shilajit is one of those substances that sounds invented. It's a black-brown resin that oozes from cracks in Himalayan and Altai mountain rocks during the summer months, formed over centuries from compressed plant matter trapped between layers of stone. The local name in Sanskrit translates roughly to "destroyer of weakness." It's been used in Ayurvedic and Tibetan medicine for over 3,000 years.

In the last decade, shilajit went from "obscure Ayurvedic resin" to mainstream biohacker supplement. The marketing has been wild — claims of "84 minerals!" and "ancient secret of Himalayan warriors!" — but the underlying biochemistry is actually interesting.

What's in it

The active compounds in shilajit are:

• Fulvic acid (and its cousin humic acid) — small organic acid molecules that act as mineral chelators. The mineral content of shilajit (iron, zinc, magnesium, selenium, plus 80+ trace minerals) is bound to fulvic acid in a form that's exceptionally bioavailable.
• Dibenzo-α-pyrones (DBPs) — a class of compound unique to shilajit. The pharmacology research suggests these are the main drivers of the mitochondrial energy effects.
• Trace minerals — the famous "84 minerals" claim. The real number varies by source and roughly tracks the mineral composition of the local Himalayan/Altai rock.

What the research supports

The strongest clinical evidence base for shilajit is in two areas:

Energy and mitochondrial function

Multiple human trials show that purified shilajit (typically 250-500 mg twice daily for 8+ weeks) improves CoQ10 status and subjective energy ratings in chronically fatigued adults. The mechanism appears to involve the DBPs supporting electron transport chain efficiency at the mitochondrial level.

Testosterone in men

A 2016 double-blind placebo-controlled trial showed that purified shilajit (250 mg twice daily for 90 days) raised total testosterone by ~20% and free testosterone by ~19% in healthy men aged 45-55. The effect was statistically significant and clinically meaningful. Smaller trials in younger men have shown similar but smaller effects.

Bone density and recovery

Smaller trials suggest shilajit supplementation supports calcium absorption and bone mineral density, particularly in postmenopausal women. Athletic recovery trials show modest reductions in markers of muscle damage after intense exercise.

How to take it (and how to spot fakes)

This is where it gets tricky. Shilajit is one of the most-adulterated supplements on the market. Common adulterants:

• Shoe polish — yes, really. Shilajit's distinctive look has been faked with shoe polish.
• Coal tar / asphaltum — looks similar, fundamentally different pharmacology.
• Diluted humic acid — sold as "shilajit extract" at a fraction of the cost.

What to look for:

• Source clearly labeled (Himalayan, Altai, Caucasian — the three legitimate sources)
• Purification process disclosed (heat-purified to remove heavy metals)
• Third-party lab tested for heavy metals (lead and arsenic are concerns with unpurified shilajit from certain sources)
• Fulvic acid percentage stated (10-20% is in the range; "70% fulvic acid" is suspicious — pure fulvic acid is a different supplement)

Dosing

The traditional Ayurvedic dose is 300-500 mg of purified shilajit resin or extract, twice daily. The clinical trials that show testosterone and energy effects used this dose range.

Higher doses don't add benefit and may concentrate heavy-metal exposure if the source is poor.

Who should be careful

• People with hemochromatosis (iron overload) — shilajit is iron-rich
• People on iron supplements — same reason, additive
• Pregnancy — not well-studied; pause
• People taking diabetes medications — shilajit can affect blood glucose

What we make

Our Shilajit Tonic is purified Himalayan shilajit resin in a drinkable adaptogen tonic with ashwagandha, maca, spirulina, and turmeric. 16 oz / 32 servings, $29.95. The format is liquid because shilajit resin is genuinely difficult to dose accurately as a raw resin — most people end up scraping inconsistent amounts off a jar. Our tonic delivers a standardized 400 mg of shilajit extract per serving.

For the testosterone and energy effects specifically, take it in the morning. Most people who respond will notice changes in the 2-6 week window.