Shilajit: Separating the Ancient Medicine Marketing From the Actual Clinical Data

Quick Review: Shilajit

Cautiously positive with one significant caveat: sourcing quality is the entire ballgame with shilajit, and most of what’s sold doesn’t clear the bar. If you’re buying standardized PrimaVie extract from a brand that provides a Certificate of Analysis, the evidence for modest T and mitochondrial benefits in healthy men is reasonably solid. If you’re buying a brown powder from an unknown source at $15 for 60 capsules, you may be getting heavy metals, filler, and very little else.

• Best for: Men who have the foundation stack dialed in and want a B-tier add for energy, mitochondrial support, and modest T benefit – particularly men in their 40s and 50s where CoQ10 and mitochondrial function are more relevant
• Dosage I use with clients: 250-500mg daily of PrimaVie standardized extract, with food
• Cycling protocol: 8 weeks on, 2-4 weeks off – not because of known toxicity at therapeutic doses but because cycling B-tier adaptogens in general is reasonable practice
• Would I recommend it: Conditional yes – sourcing-dependent, not a foundation supplement, not a replacement for zinc, D3, and magnesium

Shilajit is one of those supplements that splits the room. Half the internet describes it as ancient Himalayan medicine that unlocks peak human performance and the other half calls it overpriced dirt. I’m somewhere in the middle, but closer to the dirt camp than the marketing would like.

The substance itself is legitimate. Shilajit – also called mumijo in Eastern European traditions – is a thick resinous exudate that seeps from rock in high-altitude mountain ranges, formed over millions of years from the decomposition of plant matter. It contains fulvic acid, humic acid, dibenzo-alpha-pyrones, and a range of trace minerals. The fulvic acid component in particular has interesting properties: it enhances cellular nutrient uptake, improves mitochondrial function in some research models, and appears to work synergistically with CoQ10.

The testosterone angle is real but modest. The best-designed human trial I’m aware of used purified shilajit in healthy male volunteers and showed a statistically significant increase in total testosterone over 90 days – roughly a 20% improvement in that study, with improvements in free testosterone as well. This is in healthy men, not in deficient or hypogonadal populations – which puts shilajit in a different category from tribulus or DAA in terms of evidence quality.

But here’s what the marketing doesn’t emphasize: 20% off a meaningful baseline is not the same as reaching optimal testosterone. A man at 450 going to 540 is useful. It’s not transformative on its own. And that result required a specific, purified, standardized extract that bears little resemblance to the brown powder in most commodity shilajit products.

The sourcing problem is the whole story

If I had to summarize the shilajit situation in one sentence: the ingredient can work, but the version of it you’re most likely to encounter will not.

Raw shilajit from questionable sources has been found to contain meaningful levels of heavy metals – arsenic, lead, mercury – that accumulate in the product during its geological formation and are not removed without proper processing. Some preparations have also contained mycotoxins and microbial contamination. When shilajit is sourced from legitimate high-altitude collection points and processed correctly, these risks are controlled. When it’s sourced from lower-quality supply chains to hit a commodity price point, they’re not.

PrimaVie is the only standardized shilajit extract I recommend to clients and the only one referenced in the clinical literature I trust. It’s a trademarked extract from Natreon with standardized fulvic acid content, third-party testing, and the backing of the human trials that showed meaningful results. The price point is higher than generic shilajit. The cost is appropriate.

Doug Sterling is a 52-year-old executive recruiter I worked with through what he described as the lowest point of his adult life – recently divorced, 30 pounds heavier than he’d been in a decade, bloodwork showing T at 310. We built his protocol slowly over the first three months because the emotional context required it – he wasn’t in a place to follow a strict protocol, so we started with walking, sunlight, and alcohol reduction before adding anything else.

By month five, his foundation stack was running well, T was at 480 and climbing, and we added shilajit – PrimaVie at 400mg – as part of a recovery stack alongside CoQ10. Doug noticed subjective energy improvement that he attributed partly to shilajit and partly to everything else improving simultaneously. His T reached 540 by month nine. I can’t isolate the shilajit contribution. What I can say is that his recovery quality and energy shifted meaningfully in the window after we added it, and the CoQ10-shilajit synergy is mechanistically plausible for a 52-year-old where mitochondrial function is more directly relevant than it is at 30.

The mitochondrial angle matters more for older clients

Shilajit’s most interesting mechanism, in my view, is not the direct T effect – it’s the mitochondrial support through dibenzo-alpha-pyrones and fulvic acid. These compounds appear to enhance CoQ10 function at the electron transport chain level, improving cellular energy production efficiency. For men in their late 40s and 50s where mitochondrial decline is a real contributor to declining energy and recovery, this is a more compelling case than the direct T argument.

Andre Whitlock, 47, Boston-based professor I worked with – a man who had read every study I referenced before I finished recommending it – eventually added shilajit after his foundation stack was well established. He was primarily interested in the mitochondrial mechanism and specifically asked about the CoQ10 synergy. I told him to pair them. He tracked his own subjective energy, sleep quality, and workout recovery over 12 weeks and concluded the combination made a meaningful difference. He couldn’t confirm this with bloodwork because mitochondrial function isn’t a standard panel marker. But his subjective report was consistent enough that I kept it in his protocol.

Sam Reichert added it at month eight of his protocol after his T was already at a better place. His reaction was more muted – he noticed something but wasn’t certain it was more than placebo. This is an honest response and probably reflects his situation: at 29, where mitochondrial function wasn’t a meaningful limiting factor, the shilajit benefit is less likely to be dramatic. The CoQ10 synergy matters more at 47 than at 29.

Where shilajit sits in the supplement hierarchy

I put shilajit in the B-tier of supplements for natural T optimization. That means: real evidence, real effects for some men, appropriate as a second-tier add after the S-tier foundations are established and optimized. It doesn’t belong in the A-tier because the response is more variable than ashwagandha or properly dosed boron for the specific populations where those work best. It doesn’t belong in the C or D tier because the evidence is actually there when you use the right extract.

The sequencing I use: if a client’s foundation stack (zinc, D3, magnesium glycinate) is running and their bloodwork is in a better place, and they want to add something from the B-tier category, shilajit – sourced correctly – is a reasonable choice particularly for men over 40. I’d typically also be considering tongkat ali and ashwagandha at this stage depending on the client’s specific presentation. For someone with elevated cortisol, ashwagandha KSM-66 goes first. For someone with SHBG still elevated after magnesium and boron, more targeted SHBG intervention goes first. Shilajit is particularly positioned for the fatigue and energy presentation where mitochondrial support is likely to be a relevant mechanism.

What shilajit is not a replacement for: anything in the foundation stack. I’ve had clients who wanted to jump straight to shilajit because they’d heard about it from various sources and it sounded more interesting than zinc and magnesium. That approach consistently underperforms. The deficiencies come first. The support compounds come second. The hierarchy exists because the bloodwork response at each stage is meaningfully different depending on whether the previous step was done.

Practical protocol if you’re going to use it

PrimaVie standardized extract at 250-500mg daily with food. I typically start clients at 250mg and move to 400-500mg if they want the higher-end dose after confirming no GI issues. The resin form (if you can find genuine raw resin from a verified source) is effective but inconsistent to dose – the capsule form of PrimaVie is more practical.

Check that the product lists PrimaVie by name, provides a standardized fulvic acid content (usually around 50%), and has third-party testing available. If any of those three are missing, find a different product. The price should reflect what PrimaVie actually costs to source and manufacture – if it’s dramatically cheaper than comparable standardized extracts, the sourcing is probably not what it should be.

Cycle it. Eight weeks on, two to four weeks off is reasonable practice for B-tier adaptogens. The evidence doesn’t strongly indicate negative effects from continuous use of PrimaVie at therapeutic doses, but cycling adaptogens is generally sensible for maintaining response and avoiding tolerance.

And pair it with CoQ10 ubiquinol – particularly for men over 40 – if you’re interested in the mitochondrial angle. The synergy between the two is the mechanistically interesting part of shilajit’s story, and it’s the part the marketing rarely leads with because it requires understanding the biochemistry rather than just a simple claim about testosterone.