Other ·Emerging evidence ·Reviewed May 2026
Ancient Himalayan mineral resin containing fulvic acid and 80+ trace minerals.
The bottom line
Evidence rating emerging. Most-documented uses: energy, testosterone support, mitochondrial function. 15 sources indexed (2011–2026), with 5 interaction records on file.
Core mechanism
Fulvic acid enhances mitochondrial electron transport chain efficiency and CoQ10 function. Contains dibenzo-alpha-pyrones that support ATP production. Enhances nutrient absorption.11,13
Take on empty stomach in the morning1,2
Dosing protocol
Quality is critical; choose tested products free of heavy metals.1
Ranked by evidence and value.
Real-world pricing across three quality tiers. Assumes Purified Shilajit Resin / PrimaVie.
Assumes 300-500 mg/day. Vendor basis: iHerb, Vitacost, Amazon marketplace, and specialty shilajit brands; PrimaVie and resin formats drive premium pricing. Updated 2026-05-28.
How much you'd eat to match a supplemental dose.
Shilajit is a purified mineral pitch/resin, not a food source.
What to test, the optimal window inside the conventional range, and how long a response takes.
Purified shilajit (250 to 500 mg per day) raised total and free testosterone modestly in 90-day RCTs.4,1
Quality varies; look for purified shilajit (Primavie) free of heavy metals. Pair with free testosterone, FSH, LH.
Where this appears in the symptom-to-supplement map, ranked by relevance.
Purified shilajit modestly raised testosterone and improved sexual function scores in small RCTs.4,1
Quality is critical; choose tested products free of heavy metals.
Shilajit appears to enhance the mitochondrial action of CoQ10, with preclinical data showing greater ATP recovery and cellular energy production than CoQ10 alone.
Recommendation: Reasonable to combine for energy and mitochondrial support. Human evidence is preliminary, so treat the synergy as plausible rather than proven and use standard doses of each.
Shilajit's fulvic acid enhances mineral absorption and shilajit itself supplies some iron, so combining it with an iron supplement can push iron intake higher than intended and is hazardous in people prone to iron overload.
Recommendation: Do not combine shilajit with iron supplements if you have hemochromatosis or known high iron stores. Others should check ferritin before stacking the two and avoid layering high-dose iron on top of regular shilajit use.
Shilajit and ashwagandha are frequently paired as complementary adaptogens, with shilajit supporting cellular energy and free testosterone while ashwagandha lowers cortisol and stress.
Recommendation: Generally well tolerated together at standard doses. Evidence for the specific combination is limited, so judge effects individually and monitor for additive sedation or blood pressure changes.
Taking a standalone zinc supplement at the exact same time as Shilajit can change zinc bioavailability because the fulvic and humic acids in Shilajit complex with the zinc cation in the digestive tract. The net effect is not fully predictable in humans (the chelate can either aid cellular delivery or sequester zinc depending on the relative amounts and gut conditions), which is exactly why co-timing introduces variability rather than a reliable benefit. The trace zinc naturally present within Shilajit itself is not the concern here; this note applies to a separate higher-dose zinc product.
Recommendation: If you take a dedicated zinc supplement (for example 15 to 30 mg elemental zinc), separate it from Shilajit by 2 to 3 hours to keep zinc dosing predictable. A practical pattern is zinc with an evening meal and Shilajit in the morning. The trace zinc naturally present within Shilajit does not need separating; this applies only to a separate, higher-dose zinc product.
Shilajit and Tongkat Ali are frequently stacked for testosterone, energy, and libido, and the pairing is mechanistically coherent rather than redundant: one nudges hormone production and precursors while the other increases the free, biologically active fraction. This complementary action is why the two appear together in many men's vitality formulas. The same additive androgenic effect is the reason the combination warrants a note for anyone who should not raise testosterone.
Recommendation: For general vitality goals, a common pairing is roughly 250 mg purified Shilajit once or twice daily with 200 to 400 mg of a standardized Tongkat Ali extract, taken in the morning. Start each one individually for one to two weeks before combining so you can judge tolerance and effect. Men with hormone-sensitive conditions (such as prostate cancer or elevated hematocrit) and anyone on testosterone therapy or fertility treatment should consult a clinician before stacking, since effects on free testosterone are additive. Not for use in pregnancy.
Numbered references. Citations throughout the page link here.
Shilajit extract dose-dependently preserved bone mineral density, reduced oxidative stress markers and inflammatory cytokines in postmenopausal women with osteopenia compared to placebo.
PrimaVie Shilajit at 500 mg/day for 8 weeks promoted retention of maximal muscular strength and favorable connective tissue adaptations.
Shilajit supplementation in middle-aged women induced skin transcriptomic changes associated with microvascular and extracellular matrix remodeling, suggesting anti-aging skin benefits.
250 mg twice daily for 90 days significantly increased total testosterone, free testosterone, and DHEAS compared with placebo in healthy men aged 45-55.
Yadav D, Mishra S, Shah KM et al.. Safety and Efficacy of TruBlk™ Shilajit Resin Supplementation on Physical Performance and Blood Biomarkers in Healthy Adults: A 28-Day Open-Label Pilot Study. Cureus. 2026
Kamgar E, Kaykhaii M, Zembrzuska J. A Comprehensive Review on Shilajit: What We Know about Its Chemical Composition. Critical reviews in analytical chemistry. 2025
Kamgar E, Zembrzuska J, Zembrzuski W et al.. Quantifying of thallium in Shilajit and its supplements to unveil the potential risk of consumption of this popular traditional medicine. BMC chemistry. 2025
Kamgar E, Zembrzuska J, Lorenc W et al.. Screening and quantification of inorganic anions in Shilajit and its supplements. BMC chemistry. 2025
Shilajit contains ~65 heavy metals including toxic ones; consumption without knowing permissible levels is not safe, though humic substances may chelate toxic metals.
Shilajit is a safe supplement exhibiting antioxidant, anti-inflammatory, adaptogenic, and immunomodulatory properties based on animal and human data.
Fulvic acid blocks tau self-aggregation, opening an avenue toward Alzheimer's therapy; shilajit has procognitive properties.
Wilson E, Rajamanickam GV, Dubey GP et al.. Review on shilajit used in traditional Indian medicine. Journal of ethnopharmacology. 2011
Shilajit prevented CFS-induced mitochondrial dysfunction by stabilizing complex enzyme activities and preventing loss of mitochondrial membrane potential.
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