Shilajit and the brain is one of the most searched corners of shilajit research, and most of it is happening in test tubes and laboratories rather than in people. Here is what has caught scientists’ attention, why fulvic acid fascinates them, and how people simply enjoy shilajit as part of their day.
It is a story with mountains, an ancient tradition and some genuinely curious chemistry. Pour yourself something warm and read on.
What is shilajit?
Shilajit is a dark, glossy resin that seeps slowly from rock high in mountain ranges such as the Himalayas and the Andes. It firms up in the cold, softens in the warmth of your hand and dissolves in a warm drink, turning the cup a deep amber. The taste is earthy, smoky and pleasantly bitter.
In Ayurveda it has long been treated as a rasayana, a rejuvenating substance taken day after day as part of a steady routine. You can read the whole story in our history of shilajit and the basics on what is shilajit.
Why are brain researchers curious about shilajit?
Mostly because of what it is made of. A 2012 review estimated that humic substances make up roughly 60 to 80% of shilajit. The most studied of these is fulvic acid, a small, water-soluble molecule 1. The rest includes minerals and many organic compounds, which our guide to fulvic acid and minerals in shilajit explains.
The same review described shilajit as a candidate for research on ageing and the brain, while noting it still lacked well-established clinical trials 1. That mix of long tradition and unusual chemistry is what keeps researchers coming back.
What has lab research found about fulvic acid?
Much of the interest comes from a research group at the University of Chile. In a 2011 test-tube study, fulvic acid slowed tau, a protein, from forming filaments, and it shortened filaments that had already formed 2. Tangles of tau are one of the hallmarks researchers study in Alzheimer’s disease.
In 2023 the same group split Andean shilajit into fractions and tested them on cells 3. Some fractions made rat brain cells and mouse nerve-like cells grow longer branches in a dish.
These are intriguing starting points for scientists. A result in a dish is a long way from a result in a person, and nobody has yet shown how much fulvic acid taken by mouth reaches the human brain.
What have animal studies looked at?
A small number of rodent studies have explored shilajit and the brain, each from a different angle.
- Brain chemistry. In a 1997 study, rats were injected with shilajit for seven days. Researchers then measured markers of the acetylcholine system, a chemical messenger network, in parts of the brain 4.
- Behaviour under stress. In a 2012 study, rats were made to swim for 15 minutes a day for 21 days. Rats given shilajit by mouth showed less immobility and less anxiety-like behaviour in later tests 5.
Animal studies help scientists decide what is worth testing next. They used doses and conditions that are very different from a person stirring a little resin into a cup, so they are best read as clues rather than conclusions.
Has shilajit been studied in people?
Only as part of a blend so far. BrainUp-10 combines Andean shilajit with B vitamins. In a randomised, placebo-controlled trial in Chile, 82 people with mild to moderate Alzheimer’s disease took the blend or a placebo daily 6. The main measure was apathy, meaning loss of interest and motivation, and apathy scores were lower in the blend group at weeks 4 and 12 6.
Because the blend also contained B vitamins, the trial can’t show what shilajit itself contributed. It came from the same research group, and it hasn’t been repeated. No study has yet tested shilajit on its own for memory or focus, in people with a diagnosis or in healthy adults.
For a study-by-study look, our sister site has a detailed shilajit and brain health review.
What if you’re worried about your memory?
Talk to your GP. The NHS advises doing so if memory problems are affecting your daily life, or if an older relative is becoming more forgetful 7. Stress, anxiety, low mood and poor sleep are common causes of memory problems, and they can be treated 7.
A supplement is never a substitute for that conversation. If you or someone you care for takes medication or has a health condition, check with a doctor or pharmacist before taking shilajit.
How do people enjoy shilajit day to day?
Away from the lab, shilajit is a lovely, unhurried ritual. Most people take it once a day, at a moment that suits them.
- Scoop a pea-sized piece. That is about 100 mg of resin.
- Dissolve it in something warm. Warm water, tea or milk all work. Use filtered or bottled water rather than tap water.
- Stir, wait a minute and sip. Watch it melt into a rich amber.
Some people pair it with their first tea of the morning. Others save it for a quiet evening cup with a book. Every jar of Hilasti Himalayan shilajit comes with a steel measuring spatula, and about half of the wide end is one serving. Stay within the suggested serving on the label, and see our FAQ for more tips.
If the bitterness is new to you, try it in warm milk with a pinch of cinnamon, or in a cup of hot cacao. Both round off the earthy, smoky notes.
Where does Hilasti’s shilajit come from?
Our resin is harvested in Nepal, at around 4,800 m in the Himalayas. We keep it raw, with no fillers or additives, and it is suitable for vegans.
A 30 g jar holds about 300 servings, which lasts around four to six months, and a 15 g jar holds about 150. Both are in the shop.
Why does lab testing matter for shilajit?
Shilajit forms in rock, so it can pick up metals from its surroundings. The 2012 review noted that unpurified shilajit may contain heavy metals 1. A 2022 analysis of Indian and Pakistani shilajit found lead, arsenic and mercury above permissible limits in the samples tested 8.
A 2026 analysis of 12 samples found toxic metals below established thresholds, with wide variation between samples 9. So the lab report for a specific batch tells you more than the label.
How do you choose good shilajit resin?
- Ask for a batch lab report. Heavy-metal results from an accredited laboratory, compared with EU limits, are the clearest sign of a careful supplier.
- Keep it raw. The ingredient list should simply say shilajit.
- Check the origin. A named region and altitude tell you the supplier knows its source.
- Trust the texture and taste. Real resin is firm in the cold, soft in the warmth, and tastes earthy, smoky and bitter.
Our resin was tested by an accredited independent EU laboratory for lead, arsenic, cadmium and mercury, and all four results were within EU limits for food supplements. See the full figures on our lab results page.
How should you store shilajit?
Keep the jar in a cool, dry place with the lid closed, away from direct sunlight. A jar keeps for up to 2 years. The resin can turn hard on a cold windowsill and soft or runny on a hot day. Both are completely normal. If it is too firm to scoop, hold the jar in your hand for a minute and it will soften.
Where can you read more?
For the wider picture, read our friendly guide to shilajit research and our graded shilajit benefits page.
If you would like to start your own daily ritual, our raw Himalayan resin comes with a steel spatula, ready for your first warm cup. Take a look in the Hilasti shop and choose the jar that suits you.
This article is for information only and isn’t medical advice. Speak to your doctor or pharmacist before taking a supplement, especially if you’re pregnant, breastfeeding, take medication or have a health condition.
