Rankings / Essentials — Supplements
Shilajit
Essentials · Adaptogen / mineral pitch
Tier C
High-risk evidence profile
Bottom line
Read Off Label grades Shilajit as C (4.7/10) based on moderate evidence, moderate benefit magnitude, and a med-high for raw/unpurified product-risk safety profile.
Its high-risk evidence profile reflects a Safety score of 3/10; reported benefits and harms can differ by indication, dose, route, duration, and population.
Ayurvedic "rasayana" (rejuvenative) used for centuries across India; Nepal; Russia; and Central Asia under various names — mumie, mumijo, salajeet, brag-shun.
Studied, labeled, or reported-use context: PrimaVie 250 mg PO twice daily is the Pandit/Biswas trial dose; biohacker doses often 300-500 mg/day;… — OTC dietary supplement (US/EU/global); not FDA-approved for any indication; quality varies enormously — only standardized purified extracts (PrimaVie/Natreon and similar third-party-certified products) carry meaningful heavy-metal certifications; not individualized guidance.
What the evidence says
Ayurvedic "rasayana" (rejuvenative) used for centuries across India; Nepal; Russia; and Central Asia under various names — mumie, mumijo, salajeet, brag-shun. Modern interest centers on the testosterone-elevation signal from the single rigorous RCT: **Pandit/Biswas 2016 Andrologia** in n=60 men aged 45-55 using PrimaVie standardized extract 250 mg BID x 90 days produced total T +20%, free T +19%, DHEAS elevation, with preserved LH/FSH (suggesting a non-suppressive mechanism). **Heavy-metal contamination is the central decision input** and gets under-emphasized in supplement marketing. Raw shilajit naturally absorbs arsenic; lead; mercury; cadmium; chromium; and thallium during multi-century geological formation. Thallium is particularly dangerous (mimics potassium; penetrates all tissues; the 2025 BMC Chem paper quantified thallium specifically across commercial brands). Generally accepted limits: lead ≤10 ppm; arsenic ≤10 ppm; cadmium ≤3 ppm; mercury ≤1 ppm. 2024 ConsumerLab analysis found fulvic acid content varies enormously across brands — sourcing matters more than dosing. **PrimaVie (Natreon)** is the standardized extract used in the clinical trial and carries third-party ICP-MS heavy-metal testing — the only formulation with publication-grade evidence behind it. Mechanism research (preclinical): DBPs targeted to mitochondria reduce ubiquinol oxidation by ~40% in rat hepatic mitochondria (Bhattacharyya 2012) and may synergize with CoQ10 supplementation. **Evidence summary**: the testosterone signal is modest and rests on one trial; the mitochondrial mechanism is plausible but lacks human outcome RCTs; uncharacterized products have documented contaminant concerns. The cited human trial used a standardized extract with contaminant testing; gray-market resin products may have unverified composition and contaminant levels.
Mechanism
Sticky exudate from Himalayan/Altai/Caucasus mountain rocks (Sanskrit: "conqueror of mountains"); active constituents include fulvic acid (~10-20%); humic acid; and dibenzo-α-pyrones (DBPs) including DBP chromoproteins; DBPs target mitochondria where they stabilize the reduced form of CoQ10 (ubiquinol) and support electron transport at complex I/II; fulvic acid acts as a carrier protecting DBPs from gut oxidation; trace mineral content (~80 minerals per manufacturer claims); proposed mitochondrial biogenesis and antioxidant effects
Studied, labeled, or reported dose & route
PrimaVie 250 mg PO twice daily is the Pandit/Biswas trial dose; biohacker doses often 300-500 mg/day; resin form ~rice-grain-sized portion dissolved in warm water — variable potency
This records doses and routes described in studies, approved labeling, clinical practice, or documented use. It is not individualized guidance and does not establish safety; context changes with indication, formulation, health history, monitoring, and other medicines.
Citations
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Common questions
- What does the evidence show about Shilajit's effects?
- Read Off Label rates the evidence for Shilajit as Moderate and the benefit magnitude as moderate, producing an overall grade of C (4.7/10). Ayurvedic "rasayana" (rejuvenative) used for centuries across India; Nepal; Russia; and Central Asia under various names — mumie, mumijo, salajeet, brag-shun.
- What safety findings are reported for Shilajit?
- Shilajit has a med-high for raw/unpurified product risk profile in the database. Med-High for raw/unpurified product (heavy-metal contamination is a real and under-appreciated concern — ICP-MS testing of commercial shilajit routinely finds arsenic, lead, mercury, cadmium, chromium, and notably THALLIUM as natural contaminants; thallium mimics potassium and penetrates all tissues; uncharacterized gray-market shilajit is uniquely concerning vs other supplements); Low for verified-pure standardized extract (e.g., PrimaVie with COA); 2024 ConsumerLab analysis found fulvic acid content varies enormously across brands Legal status: OTC dietary supplement (US/EU/global); not FDA-approved for any indication; quality varies enormously — only standardized purified extracts (PrimaVie/Natreon and similar third-party-certified products) carry meaningful heavy-metal certifications.
- What does the low Safety score for Shilajit represent?
- The Safety score is 3/10. It records the substantial harms described for one or more use contexts; the Benefit score, indication, dose, route, duration, population, and legal status remain separate parts of the evidence profile.
- What doses or routes are reported for Shilajit?
- PrimaVie 250 mg PO twice daily is the Pandit/Biswas trial dose; biohacker doses often 300-500 mg/day; resin form ~rice-grain-sized portion dissolved in warm water — variable potency This is context from studies, approved labeling, clinical practice, or documented use; it is not individualized guidance and does not establish safety.
- How does Shilajit work?
- Sticky exudate from Himalayan/Altai/Caucasus mountain rocks (Sanskrit: "conqueror of mountains"); active constituents include fulvic acid (~10-20%); humic acid; and dibenzo-α-pyrones (DBPs) including DBP chromoproteins; DBPs target mitochondria where they stabilize the reduced form of CoQ10 (ubiquinol) and support electron transport at complex I/II; fulvic acid acts as a carrier protecting DBPs from gut oxidation; trace mineral content (~80 minerals per manufacturer claims); proposed mitochondrial biogenesis and antioxidant effects
This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.