Last updated: April 9, 2026 · Originally published: April 8, 2026 · By Eternal Elixir Science Team
For thousands of years, people living in the high-altitude regions of Central Asia, the Himalayas, and Siberia used a tar-like resin that seeped from rock faces during summer. They called it many names — shilajit in Sanskrit, mumijo in Russian, salajeet in Arabic — and attributed to it almost mythic restorative properties. Today, that same substance is being studied in clinical trials, and the results are more interesting than most supplement research ever gets.
This guide covers what shilajit for men can realistically deliver — what the clinical evidence says about testosterone, energy, and physical performance, and what Australians specifically should know before adding it to their stack.
What Is Shilajit and Where Does It Come From?
Shilajit is a blackish-brown resinous material formed over centuries — possibly millennia — by the slow decomposition of organic plant matter compressed between layers of rock. At high altitudes, seasonal temperature changes cause this concentrated resin to seep from crevices, where it can be harvested and purified.
The composition of shilajit is what makes it unusual among supplements. It contains over 80 minerals in ionic form, along with a rich profile of humic and fulvic acids — organic compounds produced during the breakdown of plant material. Fulvic acid in particular has attracted significant research interest for its ability to act as a carrier molecule, potentially enhancing the bioavailability of other nutrients and supporting mineral transport into cells.
Quality varies enormously between sources. Himalayan shilajit is the most studied variety, and the geographic origin, altitude, and purification process all influence the final product. Raw shilajit can contain heavy metals and other contaminants, which is why purification and independent third-party lab testing matter so much when choosing a supplement. This is especially relevant for Australians, given the Therapeutic Goods Administration’s (TGA) focus on supplement safety and the responsibility placed on companies to demonstrate product quality.
What the Research Says About Shilajit and Testosterone
The most cited study on shilajit and testosterone was published in Andrologia in 2016. In this double-blind, placebo-controlled trial, 96 healthy men aged 45 to 55 were given either 250 mg of purified shilajit twice daily or a placebo for 90 days. The results showed statistically significant increases in total testosterone (20.45%), free testosterone (19.14%), and dehydroepiandrosterone sulphate (DHEAS, 31.35%) compared with the placebo group. The researchers also observed that levels of the follicle-stimulating hormone (FSH) and luteinising hormone (LH) were maintained, suggesting the effect was not suppressive of the hypothalamic-pituitary-gonadal axis — a meaningful distinction from exogenous testosterone replacement. You can read the full study on PubMed here.
Shilajit appears to work differently to other natural testosterone supporters. Tongkat ali, for example, primarily works by inhibiting sex hormone-binding globulin (SHBG) and supporting the HPG axis through its eurycomanone content. Shilajit seems to act through a broader hormonal and cellular mechanism, with its fulvic acid content playing a role in mitochondrial support that may indirectly influence testicular steroidogenesis. This is one reason the two compounds are sometimes considered complementary rather than redundant — and why men already using Tongkat Ali and Fadogia sometimes add shilajit to a broader protocol.
For men working through a structured natural testosterone optimisation protocol, shilajit can be a valuable addition at the cellular level — particularly for supporting the energy systems that hormonal health depends on.
Shilajit for Energy and Physical Performance
Separate from its hormonal effects, shilajit has been studied for its impact on physical performance and fatigue. A well-designed trial published in the Journal of the International Society of Sports Nutrition looked at the effects of shilajit supplementation in physically active men over 8 weeks. Participants taking 500 mg daily showed significantly better retention of maximum strength following a fatiguing exercise protocol — losing roughly 9% of peak strength compared to approximately 16% in the placebo group. They also showed better post-exercise collagen metabolism markers, suggesting faster connective tissue recovery. The full paper is available via PubMed Central.
Animal research has also shown that shilajit increases post-exercise ATP concentrations in skeletal muscle tissue, pointing to a mitochondrial mechanism. This aligns with what we understand about fulvic acid’s role in electron transport — essentially, it may help cells produce and recycle energy more efficiently under physical load.
For men who train consistently, this has practical implications. The difference between recovering well and recovering poorly compounds over weeks and months of training. Supplements that support the underlying cellular machinery of recovery — rather than simply masking fatigue — tend to produce more durable results.
Fulvic Acid, Fertility and Beyond: The Broader Benefits of Shilajit
Much of shilajit’s benefit is attributed to its fulvic acid content. Fulvic acid is a low-molecular-weight organic acid that is highly bioavailable and capable of crossing cell membranes. It acts as a chelator — meaning it binds to minerals and aids their transport into cells — and functions as an antioxidant, scavenging free radicals and reducing oxidative stress.
The relevance of this for men’s health extends well beyond testosterone. Oxidative stress in mitochondria is a key driver of cellular ageing, declining energy production, and reduced resilience to physical and cognitive demands. Fulvic acid’s capacity to support mitochondrial function gives it a broad profile that intersects with longevity, performance, and hormonal health simultaneously.
When comparing shilajit products, fulvic acid content is a primary quality marker. Premium purified shilajit should test at 40% to 85% fulvic acid by weight; products that are diluted, poorly sourced, or contaminated will fall well below this range. This is one reason standardised, lab-tested shilajit capsules are often preferable to raw resins sold online without documentation — the TGA framework that governs listed supplements in Australia requires companies to substantiate their label claims, which provides a layer of accountability that grey-market imports do not offer.
Beyond testosterone and performance, researchers have examined shilajit across several other areas:
Male fertility: A 90-day trial in men with low sperm counts showed total sperm count increased by 61.4%, sperm motility improved by 12–17%, and normally shaped sperm increased by 18.9% after taking processed shilajit. For men with fertility concerns, these are meaningful numbers — though results in fertile men are less studied.
Cognitive function: Fulvic acid has shown neuroprotective properties in preclinical research, including inhibiting the aggregation of tau protein — a hallmark of Alzheimer’s pathology — and supporting neurite extension. Human clinical data in this area remains limited, but the mechanistic rationale is credible enough to warrant continued research attention.
High-altitude adaptation: Shilajit has traditional use in high-altitude Ayurvedic medicine for managing altitude sickness symptoms. Mechanistically, its effects on ATP production and erythropoiesis (red blood cell formation) provide a plausible basis for this use, though formal trials in this context are sparse.
Skin health: A randomised clinical trial in middle-aged women showed that 125–250 mg of shilajit twice daily for 14 weeks supported dermal circulation and collagen synthesis markers, suggesting a role in skin regeneration that complements its systemic antioxidant effects.
How to Choose and Use Shilajit in Australia
The Australian supplement market includes imported resins, grey-market powders, and TGA-compliant capsules at a wide range of quality levels. Here is what to look for:
Purification and heavy metal testing: Shilajit sourced from rock faces in high-altitude regions naturally accumulates trace minerals — some beneficial, some potentially harmful. Reputable brands will provide certificates of analysis showing heavy metal results well below safe limits. Look for testing by accredited third-party laboratories, not just in-house quality checks.
Fulvic acid content: As discussed, this is the primary quality indicator. A standardised product should specify its fulvic acid percentage on the label or in documentation.
Form: Capsules offer precision dosing, convenience, and stability. Resin forms can be authentic and effective but require more careful measurement. Liquid drops vary widely in concentration.
Dose: Clinical trials have typically used 250–500 mg daily, split across two doses. Starting at the lower end allows you to assess individual response before increasing.
Timing: Taking shilajit on an empty stomach or with warm water appears to enhance absorption. Avoid taking it alongside tea, coffee, or other compounds that may interfere with mineral absorption at the same time.
For men already using a broader supplement stack, shilajit sits naturally alongside the products in our longevity and performance range — particularly testosterone support and energy supplements. It is complementary rather than competing with most other interventions, which makes it a relatively straightforward addition to an existing protocol.
Frequently Asked Questions
How long does shilajit take to produce noticeable effects?
The testosterone trial referenced above ran for 90 days before measuring outcomes, and this is a reasonable expectation for hormonal effects. Energy and recovery benefits may be felt sooner — some users report changes within 4 to 6 weeks. Like most evidence-based supplements, shilajit rewards consistent, long-term use over a period of months rather than producing dramatic short-term effects. If you are evaluating it properly, plan to run it for at least 60 to 90 days before drawing conclusions.
Can I stack shilajit with other testosterone support supplements?
Yes, and there is a logical case for doing so. Shilajit, tongkat ali, and fadogia agrestis appear to work through partially distinct mechanisms — shilajit supporting cellular energy and mitochondrial function, tongkat ali reducing SHBG and supporting HPG axis signalling, and fadogia agrestis potentially acting on luteinising hormone pathways. Combining them addresses multiple levers simultaneously. If you are unfamiliar with tongkat ali and fadogia, our article on the research behind fadogia agrestis covers the evidence in detail. As always, if you are on medications or have underlying health conditions, discuss new supplements with your GP or integrative practitioner before starting.
Is shilajit safe for long-term use?
The available clinical data — with studies running up to 48 weeks — suggests that purified, high-quality shilajit is well tolerated at doses up to 500 mg daily. The primary safety concern with shilajit is heavy metal contamination in low-quality products, particularly lead, mercury, and arsenic. This is precisely why sourcing from a TGA-compliant supplier with third-party testing is non-negotiable. There are also contraindications to be aware of: people with haemochromatosis (excess iron), sickle cell anaemia, or thalassaemia should avoid shilajit due to its iron content. People on antihypertensive medications should also exercise caution, as shilajit may lower blood pressure. If you are unsure, speak to a healthcare professional before starting supplementation.
What does shilajit taste like and does the form matter?
Raw shilajit resin has a strong, earthy, slightly bitter taste that most people find unpleasant. Capsules avoid this entirely and offer the additional advantage of standardised dosing — you know exactly how much fulvic acid you are getting per serve. For most people, capsules are simply the more practical option. Our Shilajit 1000mg capsules are standardised for fulvic acid content, third-party tested, and designed for the consistent daily use that the research supports.
Does shilajit have any interactions with medications?
Shilajit has demonstrated blood-pressure-lowering properties in some research, which means it may potentiate the effects of antihypertensive medications. There is also some theoretical interaction with anticoagulants given its mineral content. No significant drug interactions have been formally established in large-scale studies, but the evidence base in humans is not yet comprehensive enough to rule them out entirely. If you are taking any prescription medications, check with your prescribing doctor or a pharmacist before adding shilajit to your routine. The TGA’s regulatory framework for listed medicines means that compliant Australian supplements will not make unsubstantiated therapeutic claims, but this does not replace individualised medical advice for people on complex medication regimens.
