A contested compound that has never been isolated, with more than three thousand years of unbroken human use behind it. Science has never agreed on a single name for it. Neither did the Persians, the Chinese or the Russians, who each named it for themselves. Let us look at what they are, and what they are not.
History and discovery
The traditional account of how it was found is a story about watching animals. Villagers in the Himalaya saw monkeys and high-altitude species climb to the same rocks during the warm months, where a dark resin seeped out of the stone, and noticed the animals eating it moved through hard country well. People followed them to the rock.
Its Sanskrit name records what it appeared to be: शिला, shila, rock, and जित, jit, conqueror or born of. The thing born of rock. In the mountains it went by a plainer description too: the tear of the mountain, for the way it weeps from a cliff face in summer heat. That is the story. What follows is the substance.
Fulvic acid is not an ingredient. It is one of three fractions of a single material, and the only thing that tells them apart is the pH of the water they are sitting in.
Change the acidity and the boundary moves. There is no seam of fulvic acid anywhere in the ground: only the part that stays dissolved once the solution turns acid enough. That material is humic substance, and it is worth being exact about what that does and does not mean. Humic substances are not ancient by definition. They form wherever organic matter decomposes, in last autumn's leaf litter as readily as in a coal seam. What we work with is not humic substance in general, but a prehistoric deposit of it: buried, sealed and left alone for millions of years, until it became something modern agricultural soils no longer make.
Latin humus means soil. Every word in this subject is built out of it: humic, humate, humification, humus itself. So is the Latin for a person: homo, humanus. The man of humus.
Nearly every book that ever tried to explain us began in the same place. Genesis has man formed from the dust of the ground, and Hebrew makes exactly the joke Latin does: adam, the human, out of adamah, the ground. The Quran has him shaped from clay. Egypt had Khnum throwing him on a potter's wheel out of Nile silt, China had Nüwa pinching him from yellow earth, Greece had Prometheus at the riverbank doing the same. We do not know whether any of that is true, or whether it was only ever a metaphor. What we do know is narrower, and stranger: the circle of life closes in the soil. That is where the inorganic becomes organic, where rock stops being rock and turns into something a living thing can take up. Nowhere else does it happen first.
Once you have seen that, it cannot be unseen. Life is handed over in the ground, and from there it travels the whole length of the food chain: into the plant, into the animal, into us.
So we do come from the soil. Perhaps not in the way those books meant it, but in a way you could weigh on a scale: every mineral you are built from, every compound holding you together, was lifted out of the ground and passed along until it arrived here. Humanus. The man of humus. Not a metaphor after all.
Defined by what dissolves.
Now the chemistry, and it starts somewhere strange. Humic substances are defined in the literature by exclusion: they are the organic compounds in the environment that cannot be classified as any other chemical class: not polysaccharides, not proteins, not lipids. They are what is left once every other category has taken what it recognises.
Within that leftover there are three fractions, and nothing separates them except how they behave in water.
The three fractions
One material, separated by a single question: what does it do in water? Colour follows solubility, and solubility follows size, so the three fractions do not merely look different from one another. They stop in different places.
Insoluble at every pH
The heaviest and most condensed of the three, and the one property that decides everything else is this: it never dissolves, in acid or alkali. Nothing that will not go into solution can be taken up, so humin is not absorbed at all. In the ground it does real work, binding metal ions and holding structure against mineral surfaces. In a bottle it is weight without function: the black sludge at the bottom of a cheap one.
Insoluble below pH 2 · soluble above
The large molecule of the three: thousands of atomic mass units, sometimes hundreds of thousands. Far too big to cross into circulation, which is the useful part rather than a limitation: whatever humic acid does, it does in the digestive tract, because that is as far as it goes. It also carries much of the mineral-binding capacity of the pair, which is why leaving it out of the description misdescribes the material.
Soluble at every pH
The smallest and lightest: often under a thousand atomic mass units, against humic acid's thousands. Size decides how far a molecule can travel, and this is the fraction that keeps going where the large one stops. It never falls out of solution, however the acidity shifts. About 40 per cent oxygen against roughly 30 for humic acid, which means more acidic functional groups, and makes it the more reactive of the two as well as the more mobile.
The ten-second test. Dissolve either product in water. A properly sourced and filtered humate goes clear and golden, with no cloudiness and no sediment, even at double the labelled dose. Cloudiness, dark sludge or visible residue means humin came through the filter, which points to heat processing, poor filtration, or simply a poorer seam. It costs nothing, and it is harder to fake than a certificate.
Fulvic and humic substances are the compounds through which nature amplifies organic life. Through humification, microorganisms transform dead plants and organic matter into increasingly complex humic substances, returning carbon to the soil while creating molecules that interact with the minerals around them.
It is a fundamental part of the soil carbon cycle: nature continuously recycling life into the conditions for more life. And when that cycle repeats across geological time, you get something extraordinary: millions of years of nature compounding upon itself.
Life → humification → fulvic + humic substances → mineral availability → more life.
Plants grow and absorb minerals with the help of fulvic substances.
Plants die and organic matter returns to the soil.
Microorganisms break down organic matter and transform it into fulvic and humic substances.
These molecules bind isolated minerals and make them available to plants.
Minerals fuel new growth. More biomass adds more organic matter to the soil.
Over millions of cycles…
Low organic matter Fewer fulvic substances Fewer available minerals
More organic matter More fulvic substances More minerals bound More life supported
High organic matter Rich fulvic network Abundant mineral binding Thriving ecosystems
Maximum organic biomass Dense fulvic matrices Minerals in high abundance Exceptionally rich soil
The magic of fulvic substances
They act like a natural bridge, grabbing minerals that are isolated in the soil and delivering them to plants in a form they can absorb.
The longer the cycle, the more minerals the fulvic carries.
That is why ancient fulvic matters. Nature's compound interest, one cycle at a time, and a deposit that has been compounding for millions of years is carrying far more than one forming today.
Humic and fulvic substances have been studied extensively for more than 200 years; however, much remains unknown regarding their structure and properties.Gaffney, Marley & Clark · American Chemical Society, 1996
Carboxyl groups on the molecule bind mineral ions into a water-soluble organic complex. Those groups are the working parts.
The complex is small and stays in solution at any pH, so the mineral travels with it instead of precipitating out.
It donates and accepts electrons depending on the chemistry around it, behaving as an electrolyte rather than a fixed compound.
It forms stable complexes with mono-, di-, tri- and polyvalent metal ions. This is the property that made it soil's mineral transport system.
Unlike isolated minerals, fulvic acid is part of a complex, dynamic system. Its small organic compounds interact with minerals and other nutrients, helping keep them available and supporting their transport across cell membranes. It doesn’t just carry its own minerals: it can interact with other compounds too, acting as a natural nutrient transporter to the cells.
The fraction that stays in solution at every pH. Lower molecular weight, higher oxygen content, and the mobile half of the pair: the one that moves.
The larger fraction, insoluble below pH 2. It carries much of the mineral-binding capacity, and it is the reason we never say fulvic on its own.
The part most people miss. The minerals are not a third ingredient sitting beside the fulvic and humic acids: they are held inside the same structure, on bonds loose enough to be given up and taken back. Soft bonds, not fixed ones. That is what lets the complex hand a mineral over where one is needed and accept another in its place: a carrier, not a container. What it holds (calcium, magnesium, potassium, silica, iron, zinc and a long tail of trace and rare-earth elements) is verified batch by batch on ICP-OES and ICP-MS.
A broad amino-acid profile, quantified individually by HPLC in the source material. Formed in place, by the organisms that worked the deposit, over geological time.
Gallic, caffeic, ferulic, shikimic, benzoic, fumaric and more besides, alongside plant-derived polyphenols and prebiotic compounds. None of it added. All of it accumulated where it sits.
Why not a recent humus, or a chemically extracted fulvic. Young humus is still cycling and carries whatever a modern field holds today. A chemically extracted one has been through the acids and heat that degrade the very structure being isolated. A prehistoric deposit finished forming long ago, sealed away from the modern surface, and comes out with water alone.
A little-known truth
Shilajit is tied so tightly to the Himalaya that the deposits are assumed to be Himalayan by nature. They are not. Humate deposits are the result of a universal prehistoric process: plant and organic matter broken down by microbes over thousands to millions of years, then held under geological pressure and transformed into peat, then lignite, then leonardite. The richest seams can run above 80 per cent humic substances, and some are millions of years old.
That process happened on every inhabited continent. What changes between deposits is the life that formed each one and the geology that stored it; what does not change is the family. Humic compounds do not belong to a place. They are the result of a global process: life turned into mineral, the fertiliser of life on earth and the base of the food chain. Gold marks the main mountain ranges and humic deposits, range by range.
The Hindu Kush and Himalaya arc across Afghanistan, Pakistan, northern India, Nepal and Tibet. The Altái across Russia, Mongolia and Kazakhstan. Siberia. And northern China, which holds the largest industrial reserves in the world.
Both forms occur here: shilajit at altitude, and vast leonardite and lignite seams below.
The Northern Plains (high-grade leonardite through North Dakota and the upper Mississippi) and the basins of western Canada. Together, the principal commercial source of humates and fulvic acid worldwide.
alcalina's deposit sits in this belt, close to the Canadian border.
Czechia, Germany, Poland, Austria and Hungary, along with the Nordic countries. Europe has both access to high-quality deposits and the processing industry to work them.
The Andes through Peru, Chile, Bolivia and Argentina, and Brazil. Regions with high geological activity and soils heavy in organic matter.
South Africa, Nigeria and Egypt, alongside other regions with organic-rich soils. Production and market here are both expanding.
Australia and New Zealand, at the far southern end of the same global seam.
The names change with the valley: shilajit in the Himalaya, mumiyo in Persia, mumijo in the Altái, 石蜜 in China. The material does not.
Compost, forest floor and a fossil deposit are all made the same way, which is why they share a name. It is not a reason to treat them as the same thing. Size, molecular weight, elemental composition and functional groups all vary with the origin and age of the material.
Soil humus is hundreds to a few thousand years old by radiocarbon dating, and still being slowly broken down: it is mid-process, and it carries whatever minerals that field holds today. A prehistoric deposit has been sealed away for millions of years and carries the mineral signature of the world that made it.
Ancient forest and marine life, buried and sealed before anything modern could reach it.
Microbes take the organic matter apart. What resists them concentrates and stays.
Geology holds it. Peat becomes lignite, and oxidised lignite becomes leonardite: the stage where the mineral-binding groups reach their maximum.
And the best of it comes out with water alone, at room temperature. No acid extraction, no chemical acidification: nothing that takes apart the structure being collected.
Classed as a rasayana. Used to restore ojas, the vital reserve, to support the absorption of nutrients, and to build physical and mental endurance. Not a remedy for an occasion: a tool for conditioning the whole organism.
Shí mì: 石 stone, 蜜 honey. Stone honey. Mineral substances and natural organic complexes were used to activate qi, to make herbal formulas work better, and to help the body take up and move nutrients.
Avicenna describes mumiai in the Canon of Medicine. As Persian medicine merged with Arabic, it entered the traditional pharmacopoeias of the Arab world, used by physicians, alchemists and healers alike.
In eastern Europe, peat, humus-rich muds, mineral baths and massage with mumijo (the Altái shilajit) have been in use for centuries. The practice survives today as balneotherapy.
Berg, mountain. Tjære, tar. Mountain tar: a flat description of what comes out of the rock, and the same idea the Sanskrit name carries. The Scandinavian mountains and the Nordic peatlands both sit on the map above.
Berg, mountain. Harz, resin. The German name is built the same way as the Norwegian, and it is the standard term across German-speaking markets for the Siberian and Altái material. Germany also sits on one of Europe's great lignite basins: the same peat-to-lignite sequence, at industrial scale.
The Andean expression of the same material, gathered mainly in the Peruvian highlands and running south through Bolivia, Chile and Argentina: the long gold chain down the map above. Different continent, different altitude, same prehistoric humate.
Yogis and ascetics, who classed it in Ayurveda as a rasayana: the category reserved for substances associated with longevity and renewal rather than for treating a complaint.
Warriors, for the long marches and the recovery after them.
Kings and courts, who could afford a substance that had to be gathered by hand, once a year, from places most people never go.
Physicians. The Charaka Samhita, one of the founding texts of Ayurveda, describes it as restoring the body's balance, improving the absorption of nutrients, and renewing tissue.
Recorded here as history, not as a claim about what any product does today.
When Waksman catalogued the terms in use for humus constituents in 1937, the list ran to ulmin, ulmic acid, crenic and apocrenic acids, hymatomelanic acid, glucinic, chlorohumic and nitrohumic acids, lignocrenic acid, humalic acid, protohumic acid and dozens more. His own note was that the list was far from complete.
The reason for the mess is structural. As Orlov puts it, the basic concepts and terminology relate not to the structural features of the substances but to the method of extraction, purification or investigation. The names describe what a chemist did, not what the thing is.
If fulvic acid is defined as whatever stays in solution after you acidify, then changing the extraction changes what qualifies. Properties of extracted preparations depend on how they were extracted, fractionated and purified, and strong acids and bases have been criticised precisely because they degrade the material they isolate. Two laboratories can therefore report different numbers for the same jar, and both be right.
Judging from published infrared spectra, some compounds described in the literature as fulvic acids were mixtures of carbohydrates and alcohols. The field has been mislabelling its own samples in peer-reviewed work.
Most brands communicate on two figures: fulvic percentage and absence of heavy metals. Both matter. Neither tells you whether the material was cooked or chemically extracted. A product can be genuinely clean, genuinely test high, and still have been boiled or acid-stripped into structural collapse.
Fulvic percentage is the most manipulated number in the category, because the answer depends on which test was run. Most of the industry uses a colorimetric one: shine light through the alkaline extract and read the colour. It is quick and cheap, and it counts everything that absorbs at that wavelength: proteins, amino acids, lipids and fulvic acid alike. One published comparison found it overstating content by 120 per cent against a proper separation method. We ask for a Lamar result instead, which separates the fraction first and weighs what is actually there.
A product quoting parts per billion can look impressive beside one quoting parts per million while being about a thousand times weaker, in some cases comparable to tap water. That is how large, cheap bottles of fulvic acid are made cheap.
Purity is the absence of contamination. Integrity is whether the structure survived the process. Only one of the two is printed on labels, and it is not the one that decides whether the material still works.
There are two tests in common use, and they are not asking the same question.
A colorimetric test asks: how dark is this liquid? Dissolve the sample in alkali, shine a light through it, measure how much is absorbed. Darker means more. It takes minutes.
The Lamar method asks something harder: how much of this is fulvic acid, and nothing else? It takes the material apart first: acid drops out the humic acid, then whatever stays dissolved is passed over a resin that catches fulvic acid and lets the sugars and amino acids run straight through. What the resin caught is dried and weighed.
One measures colour and infers the answer. The other isolates the thing and puts it on a scale. The modern standard dates from 2009, when the older method was shown to be unreliable.
| Colorimetricmost common | Lamar · ISO 19822the standard | |
|---|---|---|
| What it measures | How much light the solution absorbs. Darker reads as more. | Fulvic acid, isolated from everything else, dried and weighed. |
| Tests real fulvic content | Noit infers it from colour | Yesit is the only method that does |
| Separates the fractions first | No | Yesacid, then DAX-8 resin |
| Counts sugars, amino acids, lipids | Yesas though they were fulvic acid | Nothey run straight through |
| Time to run | Minutes | Days |
| Cost | Low | Considerably higher |
| Where you can get it done | Almost any analytical laboratory, anywhere: a spectrophotometer is standard equipment. | A short list of laboratories worldwide, and not easy to find. |
| Where it comes from | The Mehlich method, 1984. Lamar and Talbot demonstrated its deficiencies in 2009, and it is still the one most of the industry runs. | Built out of that 2009 finding. Published 2014, adopted by IHSS and AOAC, an ISO standard since 2018. |
| International standard | None | ISO 19822:2018 |
| The figure it returns | Overstated. One published comparison found it 120 per cent high. | Lower, and true. |
Colorimetric is the common one, and it is where false fulvic percentages come from. It is not fraud so much as the wrong instrument: nobody is lying about the reading, they are reading the wrong thing. An 85 per cent claim almost always comes from this column.
Collected by hand in high mountain country that is hard to reach, and only once a year, in Kashmir, during the summer months, when the heat brings the resin out of the rock.
Dried slowly in natural sun, which can take up to three months. Not heated, not steamed, not accelerated.
Cold-filtered over a process that can run beyond a month, with no fillers added at any stage.
No chemical processing. shila:jit dorado tests at around 65 per cent real fulvic acid by the Lamar method, varying slightly by lot, and every lot is screened for heavy metals in the EU rather than only at origin.
Less than one per cent of the shilajit on the market can honestly be called golden grade. The rest is heated or steam-extracted because it is faster, pasteurised, and often cut with cheap fillers dressed up as traditional additions. That is what gave the whole category its reputation.
alcalina
alcalina is not simply a mineral supplement. It is mineral complexity as the result of a process.
The deposit is not conventional and was not chosen at random. It has two distinct geological layers: an upper stratum of terrestrial organic matter and a lower one of oceanic origin. Across roughly 33.9 million years, repeated cycles of marine incursion over land created a combination of freshwater and saltwater organic components that cannot be replicated elsewhere.
The extraction takes more than two years. No chemicals, no aggressive heat: slow extraction in alkaline water, where pH does the work of selection, separating out what has no biological value and preserving what is bioavailable. The finished concentrate sits at pH 11.0 to 11.4, which inhibits microbial and fungal growth on its own and removes any need for preservatives.
Extraction runs in two phases with reverse osmosis, at low temperature, in stainless steel to avoid contamination. Every batch is screened for heavy metals, mycotoxins, pesticides and polycyclic aromatic hydrocarbons. Results are published in parts per million and as a percentage of fulvic and humic acid, never in parts per billion.
Fulvic acid has been evaluated at up to 5,000 mg per kg of body weight without acute toxicity, and in repeated dosing over 60 days. Combined fulvic and humic preparations have an established no-observed-adverse-effect level of 2,000 mg/kg/day in 90-day rat studies. Shilajit has been studied at up to 5,000 mg/kg/day for 91 days, with only mild organ changes at the highest doses.
Thinner, but consistent. Fulvic acid has been used in clinical study at around 1.8 g per day without relevant short-term adverse effects. Shilajit has run in trials at 200 to 500 mg per day over 90 days with good tolerability.
Everyday doses sit far below all of those figures. A wide safety margin is the correct conclusion to draw from toxicology data, and it is not a reason to take more.
PubMed indexes roughly 3,000 results for fulvic acid and 14,900 for humic acid. An indexed paper is not evidence by itself: it is a place to start reading.
Much of the literature is cell-culture work, with animal studies behind it and human trials fewer and smaller than enthusiasts imply. The mechanistic evidence is stronger than the clinical trial evidence.
Every lot screened for heavy metals, mycotoxins, pesticides and microbes. Certificates of analysis available per batch on request.
The molecular structure of fulvic acid has never been determined. Nobody has synthesised it. The competing accounts of how humification proceeds have coexisted for decades without resolution, and the field's own working assumption is that more than one pathway operates at once. One of the discipline's standard texts assesses the leading scheme of its day as only a slightly better hypothesis.
What can be said with confidence is what the material is made of, where it came from, how it was processed, and what an independent laboratory measured in a specific batch. What cannot be said with confidence is the mechanism, in detail, at the level of a molecule nobody has drawn. If a supplier sounds more certain than the chemical literature, that certainty came from somewhere else.
alcalina: 10 drops in 200 ml of clean water, once daily, first thing in the morning and on an empty stomach where possible. A 100 ml bottle gives around 200 servings.
shila:jit dorado: 150 to 200 mg, about the size of a small pea, dissolved in warm water.
Start slow and build up with time. Four drops is a good place to begin, and you climb from there across the first weeks rather than starting at the top. There is no prize for arriving at the full dose on day one.
How will you know when you have found your level? You will feel it. Let your own response set the pace, rather than a number printed on a page.
The alternative applications (enemas, the skin, nasal sprays, and the rest) with the studies behind each and how to prepare them. Leave us your email.
Questions
Solubility, which is how the whole family is defined. Fulvic acid dissolves in water at every pH. Humic acid is insoluble below pH 2 and dissolves above it. Humin never dissolves. Fulvic acid also runs to lower molecular weight and carries more oxygen, which makes it the more mobile and more reactive of the two.
Because they arrive together in the ground and are parted by an analyst, not by nature. A product that advertises only its fulvic percentage is describing one fraction of what is in the bottle and staying quiet about the rest, and the rest is not filler.
No. Humate deposits occur on every inhabited continent: the Altái, Siberia, northern China, central Europe, the Nordic countries, North and South America, Africa and Oceania. Shilajit is the name given to the material where it surfaces in high mountains. The deposits themselves are a global phenomenon.
Same family, different form and different continent. alcalina is a liquid extracted over two years from a dual-layer fossil deposit that took roughly 33.9 million years to form. shila:jit dorado is a resin that seeps from Himalayan rock in summer and is gathered by hand in Kashmir. Both are prehistoric humate.
Dissolve it in water. A properly sourced and filtered humate goes clear and golden, with no cloudiness and no sediment, even at double the labelled dose. Cloudiness, dark sludge or visible residue points to heat processing, poor filtration, or a high proportion of humin: the black, insoluble fraction that carries the least value and the most weight.
alcalina: 10 drops in 200 ml of water, once daily, first thing and on an empty stomach where possible. Anyone who prefers to ease in can start at 4 drops and build up across the first week. shila:jit dorado: 150 to 200 mg, about a small pea, dissolved in warm water. Do not exceed the stated dose.
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