Rankings / Essentials — Supplements
Shilajit
Essentials · Adaptogen / mineral pitch
Tier C
What this is
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. **Biohacker take**: the testosterone signal is real but modest and rests on one trial; the mitochondrial story is mechanistically plausible but lacks human outcome RCTs; the safety signal from uncharacterized product is real and under-appreciated. Use only verified-COA standardized extract; treat gray-market resin chunks the same way you'd treat unsourced research chemicals.
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
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
Citations
- https://pubmed.ncbi.nlm.nih.gov/26395129/
- https://link.springer.com/article/10.1186/s13065-025-01384-7
- https://www.consumerlab.com/news/shilajit-supplements-found-to-contain-high-amounts-of-fulvic-acid/09-26-2024/
- https://www.bscg.org/blogs/single/shilajit-supplement-safety-testing-compliance-guide
- https://www.researchgate.net/publication/285677504_Shilajit_dibenzo-a-pyrones_Mitochondria_targeted_antioxidants
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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.