DMT (N,N-dimethyltryptamine) is made from tryptophan, an amino acid found in everyday foods like turkey, eggs, and cheese. Whether produced inside the human body or extracted from plants, the starting material is the same: tryptophan gets chemically modified through a short series of reactions into the powerful psychedelic compound. Plants rich in DMT, particularly certain tropical species, have been used for centuries to prepare psychoactive brews and snuffs.
The Chemical Building Blocks
DMT has the molecular formula C₁₂H₁₆N₂ and a molecular weight of about 188. Its structure belongs to the tryptamine family, a group of compounds that share a core shape with serotonin, one of the brain’s key signaling molecules. That structural similarity is why DMT interacts so strongly with serotonin receptors and produces intense perceptual effects.
The production pathway is surprisingly simple. It starts with tryptophan, one of the essential amino acids your body gets from food. An enzyme strips a small chemical group off tryptophan (a process called decarboxylation), converting it into tryptamine. Then a second enzyme, called indolethylamine-N-methyltransferase (INMT), adds two methyl groups to the tryptamine molecule one at a time. The methyl groups come from a common biological molecule that cells use as a “methyl donor.” After those two additions, the result is N,N-dimethyltryptamine.
DMT in the Human Body
Your body produces small amounts of DMT on its own. The same two-step pathway described above operates in human tissue: dietary tryptophan is converted to tryptamine, which is then double-methylated by INMT. The enzyme INMT has been found in several organs, and its activity has been confirmed in human lung, liver, and brain tissue. The amounts produced naturally are tiny and are rapidly broken down by monoamine oxidase (MAO), one of the body’s standard cleanup enzymes, so endogenous DMT doesn’t accumulate to psychoactive levels under normal circumstances.
Why the body makes DMT at all remains an open question. Some researchers have proposed roles in dreaming, stress responses, or near-death experiences, but none of these hypotheses have been confirmed. What is clear is that the biochemical machinery to synthesize DMT exists in humans and many other mammals.
Plant Sources of DMT
Dozens of plant species produce DMT, but a handful stand out for their high concentrations. The most commonly cited sources are:
- Mimosa tenuiflora (jurema): The root bark is the richest part of the plant, containing 0.5% to 1.7% DMT by dry weight. Stem bark can reach even higher concentrations in some samples, with one laboratory extraction yielding about 3.45% from powdered stem bark. The leaves and flowers contain far less, roughly 0.01% to 0.03%, and the seeds have no significant DMT content.
- Psychotria viridis (chacruna): The leaves of this shrub are the DMT source in traditional ayahuasca preparations. Concentrations are lower than in Mimosa bark but sufficient for oral use when combined with an MAO inhibitor.
- Acacia species: Several Australian and African acacia species contain DMT in their bark and leaves, though concentrations vary widely between species and even between individual trees.
- Anadenanthera peregrina and A. colubrina: The seeds of these South American trees contain DMT along with related compounds like bufotenine. They have been ground into snuff powders (known as yopo and cebil) for thousands of years.
In all these plants, the biosynthetic pathway mirrors what happens in animals. The plant takes tryptophan, removes its acid group to form tryptamine, and then adds two methyl groups. Plants simply accumulate the end product in much higher concentrations than mammals do, particularly in bark tissue.
How Ayahuasca Solves the Oral Problem
DMT on its own is not active when swallowed. Enzymes in your gut (specifically MAO-A) break it down before it ever reaches the bloodstream. This is where the ingenuity of ayahuasca comes in. The traditional brew combines two plants: Psychotria viridis, which supplies the DMT, and Banisteriopsis caapi, a vine that contains beta-carboline alkaloids. These beta-carbolines temporarily block MAO-A in the digestive tract, allowing DMT to pass intact into the bloodstream and cross into the brain.
Without that MAO inhibitor, you could drink a DMT-containing tea and feel little to nothing. The pairing of these two plants, one providing the psychoactive molecule and the other protecting it from destruction, is a remarkable piece of traditional pharmacology developed by indigenous Amazonian peoples long before modern chemistry existed.
Synthetic DMT Production
DMT can also be synthesized in a laboratory without any plant material. The most common chemical synthesis routes start with indole (a simple organic compound) or tryptamine purchased from chemical suppliers. From tryptamine, the same logic applies as in biology: two methyl groups are added to the nitrogen atom, though chemists use different reagents than living cells do. Synthetic DMT is chemically identical to plant-derived or endogenous DMT.
Illicit DMT is produced both ways. Some clandestine preparations extract it from plant bark using acid-base techniques and common solvents. Others synthesize it from laboratory chemicals. The end product is the same molecule regardless of the source, typically appearing as a white or yellowish crystalline powder, though impurities from crude extraction can give it an orange or brownish color and a strong floral or mothball-like smell.
Legal Classification
DMT is classified as a Schedule I controlled substance in the United States under the Controlled Substances Act, placing it in the most restrictive category alongside heroin and LSD. Schedule I status means the federal government considers it to have high abuse potential and no currently accepted medical use. Possession, manufacture, and distribution carry serious criminal penalties. Internationally, DMT is listed under Schedule I of the United Nations Convention on Psychotropic Substances, making it illegal in most countries, though enforcement varies. Some jurisdictions have carved out exceptions for religious use of ayahuasca, and a handful of clinical research programs hold special licenses to study DMT’s effects.