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The Nyum Library — Shilajit Guide
Shilajit, explained.
The ancient Himalayan mineral resin — what it is, how fulvic acid works, where it comes from, and what separates a purified, potent extract from a raw, contaminated product.
What is shilajit?
Shilajit is a blackish-brown mineral resin that seeps from rock fissures in high-altitude mountain ranges, primarily the Himalayas, Altai, Caucasus, and Andes. It forms over millions of years from the compression and humification of plant matter. Its primary bioactive components are fulvic acid (60–80% of dry weight in quality extracts) and humic acid, along with over 84 trace minerals in ionic form.
The name shilajit derives from Sanskrit, roughly translating to “conqueror of mountains and destroyer of weakness.” It has been used in Ayurvedic medicine for over 3,000 years as a rasayana — a rejuvenating compound believed to promote longevity and vitality. Modern pharmacological research has identified the specific compounds responsible for these traditional claims, with fulvic acid emerging as the primary bioactive driver.
3,000+
Years of documented use in Ayurvedic medicine
84+
Trace minerals in ionic bioavailable form
60–80%
Fulvic acid in quality standardized extracts
Fulvic acid explained
Fulvic acid is a naturally occurring organic acid formed during the decomposition of plant matter by soil microorganisms. In shilajit, it acts as a carrier molecule — enhancing the absorption of minerals and other nutrients across cell membranes. It also has direct antioxidant activity, chelates heavy metals, and supports mitochondrial function by facilitating electron transport.
Fulvic acid’s molecular structure is uniquely suited to cellular transport. Its low molecular weight and high oxygen content allow it to penetrate cell membranes and carry bound minerals directly into cells — a process called “mineral complexation.” This is why shilajit’s mineral content is considered more bioavailable than equivalent minerals from inorganic sources. Fulvic acid also acts as a potent free radical scavenger, donating electrons to neutralize reactive oxygen species without becoming destabilized itself.
Read the full articleFormation and sourcing
The highest-quality shilajit is sourced from the Himalayan mountain range at altitudes above 3,000 meters, in regions of India, Nepal, and Tibet. Himalayan shilajit is considered superior due to the unique geological composition of the rock formations and the specific plant species that contributed to its formation over millions of years.
Shilajit forms through a process called humification — the slow microbial decomposition of organic plant matter trapped between rock layers under extreme pressure and temperature over geological timescales. The specific plant species, soil microbiome, and mineral composition of the surrounding rock all influence the final chemical profile of the resin. Himalayan shilajit has a distinct fulvic acid and mineral profile that differs from Altai or Caucasus sources. Altitude matters: higher-altitude sources are generally less exposed to agricultural contamination.
Read the full articlePurification and safety
Raw shilajit can contain heavy metals, mycotoxins, free radicals, and other contaminants from its geological environment. Purification is not optional — it is the critical safety step that separates a safe, effective supplement from a potentially harmful raw material. Only purified, third-party tested shilajit should be consumed.
Traditional Ayurvedic purification of shilajit (called “shodhana”) involved boiling in triphala decoction and sun-drying over multiple cycles. Modern purification uses water extraction, filtration, and controlled evaporation to remove contaminants while preserving fulvic acid and mineral content. The key safety markers to verify in a certificate of analysis are: lead (<0.5 ppm), mercury (<0.1 ppm), arsenic (<1 ppm), cadmium (<0.3 ppm), and absence of mycotoxins.
Read the full articleResearch and benefits
Published research on shilajit documents benefits in energy and mitochondrial function, testosterone and male reproductive health, cognitive function, and mineral replenishment. A 2015 randomized controlled trial found significant testosterone increases with 250mg twice daily over 90 days in healthy male volunteers.
The strongest clinical evidence for shilajit centers on testosterone support and energy metabolism. The 2015 RCT published in Andrologia found that purified shilajit (250mg twice daily) significantly increased total testosterone, free testosterone, and DHEA-S levels versus placebo over 90 days in healthy men aged 45–55. Mechanistically, fulvic acid’s role in mitochondrial electron transport may explain the energy and performance benefits reported in both traditional use and modern research.
Read the full articleForms and dosing
Shilajit is available as raw resin, powder, and standardized extract. Standardized extracts specifying a guaranteed fulvic acid percentage (look for 50–80%) offer the most consistent potency. Clinical studies have used 200–500mg daily of purified shilajit, typically split into two doses.
The form of shilajit matters significantly for dosing accuracy. Raw resin is the least processed but has variable fulvic acid content batch to batch. Spray-dried powder is convenient but the drying process can degrade some fulvic acid. Standardized extracts — where the fulvic acid percentage is verified by HPLC — provide the most reliable and consistent dosing. When comparing products, always calculate the actual fulvic acid dose: a 500mg capsule of 20% fulvic acid extract delivers 100mg of fulvic acid, while a 300mg capsule of 60% extract delivers 180mg.
Read the full articleChoosing a shilajit supplement
Key criteria: Himalayan source (altitude verified), standardized fulvic acid percentage (50–80%), third-party heavy metal testing with published COA, purification method disclosed, and no fillers or flow agents. Avoid products that list only “shilajit extract” without specifying fulvic acid content or sourcing region.
The shilajit market has significant quality variation. Products range from properly purified, standardized Himalayan extracts to raw, unpurified material from unknown sources sold at low price points. The absence of a disclosed fulvic acid percentage is a major red flag. Always request or look for a certificate of analysis that includes both heavy metal results and fulvic acid content verification.
Read the full articleFrequently asked questions
What is shilajit?
Shilajit is a blackish-brown mineral resin from high-altitude mountain ranges, primarily the Himalayas. Its primary bioactive components are fulvic acid and humic acid, along with over 84 trace minerals in ionic form.
What is fulvic acid and what does it do?
Fulvic acid acts as a carrier molecule, enhancing the absorption of minerals and nutrients across cell membranes. It also has direct antioxidant activity, chelates heavy metals, and supports mitochondrial function by facilitating electron transport.
Is shilajit safe to take?
Purified shilajit has a strong safety profile. The critical factor is purification — raw shilajit can contain heavy metals and mycotoxins. Only purified, third-party tested shilajit with a published COA should be consumed. Those with gout should use caution.
What are the benefits of shilajit?
Published research documents benefits in energy and mitochondrial function, testosterone support (a 2015 RCT found significant increases with 250mg twice daily over 90 days), cognitive function, and mineral replenishment via over 84 bioavailable trace minerals.
What is the difference between shilajit resin, powder, and extract?
Standardized extracts specifying a guaranteed fulvic acid percentage (50–80%) offer the most consistent potency. Raw resin has variable potency; spray-dried powder may have lower fulvic acid concentration due to processing.
How much shilajit should I take?
Clinical studies have used 200–500mg daily, typically split into two doses. Always calculate the actual fulvic acid dose rather than comparing total mg. The 2015 testosterone study used 250mg twice daily (500mg total).
Where does the best shilajit come from?
The highest-quality shilajit is sourced from the Himalayan mountain range at altitudes above 3,000 meters in India, Nepal, and Tibet. Higher-altitude sources have less exposure to agricultural contamination.
Nyum Shilajit Products
Himalayan sourced. Purified & standardized. Third-party tested.
SHILAFORCE™
Purified Himalayan shilajit standardized for fulvic acid content. Third-party tested for heavy metals, mycotoxins, and potency. The clinical-grade shilajit formulation from Nyum.
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