Shilajit is a tar-like resin found in high mountain rocks that works primarily by supporting energy production at the cellular level and improving how your body absorbs nutrients. Its main active ingredients are fulvic acid (making up 60% to 80% of purified shilajit) and compounds called dibenzo-alpha-pyrones, which act directly inside your cells’ energy factories. Here’s what those compounds actually do in your body.
How It Fuels Your Cells
The most well-studied effect of shilajit is its role in mitochondrial function. Mitochondria are the structures inside your cells that convert food into usable energy (ATP). The dibenzo-alpha-pyrones in shilajit work alongside CoQ10, a molecule already present in your mitochondria, within the electron transport chain, which is the final step of energy production. These compounds cycle through three different chemical states, shuttling electrons and helping your mitochondria generate ATP more efficiently.
This matters because mitochondria naturally slow down with age, stress, and illness. The same compounds also protect CoQ10 from breaking down due to oxidative damage, which means the energy-producing machinery stays functional longer. This dual action, boosting ATP synthesis while shielding the process from damage, is why shilajit has historically been described as a “revitalizer” in Ayurvedic medicine. In practical terms, people typically notice this as improved stamina and reduced fatigue.
Nutrient Absorption and Mineral Transport
Fulvic acid, the dominant compound in shilajit, is a small molecule with strong chelating properties. That means it binds to minerals and carries them into cells more effectively than those minerals could travel on their own. Because fulvic acid exists in ionic form, it conducts electricity well and interacts readily with other compounds, increasing their bioavailability.
This carrier function has a few practical consequences. Fulvic acid is thought to improve iron absorption specifically, making iron more available to bone marrow stem cells that form new blood. It also helps transport other trace minerals and can assist in removing certain toxins from the body. If you’re taking shilajit alongside other supplements or mineral-rich foods, the fulvic acid may enhance how much of those nutrients your body actually uses rather than excretes.
Skin and Collagen Effects
One of the more surprising findings about shilajit involves its effect on skin at the genetic level. A study examining skin tissue from middle-aged women who supplemented with shilajit found that several collagen-related genes were significantly upregulated compared to a placebo group. Specifically, genes responsible for producing type I, type V, and type XIV collagen all showed increased activity. The study also identified activation of pathways related to the extracellular matrix, which is the structural scaffolding that keeps skin firm, and microvascular mechanisms that support blood flow to the skin.
Type I collagen is the most abundant protein in your skin and the one most responsible for its firmness and elasticity. Type V collagen helps regulate how collagen fibers form, and type XIV plays a role in how those fibers are organized. Activating all three suggests shilajit may support skin structure from multiple angles rather than just one. These are gene-expression changes, though, not overnight cosmetic results. The effects would build gradually over weeks of consistent use.
Antioxidant Protection
Both fulvic acid and the dibenzo-alpha-pyrones in shilajit function as antioxidants, but they do so in a targeted way. Rather than floating freely through your bloodstream like vitamin C, the dibenzo-alpha-pyrones concentrate in mitochondria, where oxidative stress is highest. This is significant because mitochondrial damage accumulates with age and contributes to cellular decline throughout the body, from muscle tissue to brain cells. Shilajit also contains selenium, a trace element with its own well-established antioxidant and antiaging properties.
What’s Actually in It
Beyond fulvic acid and dibenzo-alpha-pyrones, shilajit contains a complex mix of other molecules: fatty acids, amino acids, polyphenols, triterpenes, sterols, resins, and aromatic carboxylic acids. Newer analysis has also identified specific polysaccharides and lignins. The dibenzo-alpha-pyrones serve a dual role, acting both as bioactive compounds on their own and as carriers that help transport other substances in the resin into your tissues. This carrier function partly explains why shilajit has such a broad range of reported effects. It’s not just one active ingredient doing one thing; it’s a delivery system that also happens to contain dozens of bioactive molecules.
Quality and Safety Concerns
Raw shilajit seeps out of rocks in mountainous regions and can contain soil contaminants, heavy metals, and mycotoxins. Purification is essential before it’s safe to consume. The WHO and FDA set maximum limits for heavy metals in herbal products: 1 ppm for mercury, 10 ppm for arsenic and lead, and 0.20 to 0.30 ppm for cadmium. Not all commercial shilajit products meet these standards, especially those sold as raw or minimally processed resin.
A 91-day safety study in rats found no significant changes in iron levels across most organs and blood at standard doses, with the only notable increase in liver iron occurring at very high doses (equivalent to far more than a human would take). This suggests that at normal intake levels, shilajit doesn’t cause problematic mineral accumulation. Still, the biggest real-world risk isn’t the shilajit itself. It’s buying a product that hasn’t been properly purified or tested. Look for products that provide third-party heavy metal testing results, and avoid anything that doesn’t specify its purification process.
How People Typically Take It
Shilajit is sold as a resin, powder, or capsule. The resin form is closest to its natural state after purification, usually dissolved in warm water or milk. Most commercial products suggest a pea-sized portion of resin (roughly 300 to 500 mg) once or twice daily. Clinical studies have used varying doses, and there’s no single universally agreed-upon amount, but most fall within that general range.
Because fulvic acid enhances nutrient absorption, some people take shilajit alongside other supplements to boost their effectiveness. If you’re taking iron supplements or multivitamins, the fulvic acid may increase how much mineral content reaches your cells. That same property means you should be cautious about combining it with medications where absorption rates matter, since it could potentially alter how much of a drug enters your system.