This page respects the original work's rights terms and independently introduces its bibliography, abstract, main results, and limitations. It is not a full translation.
About this resource
This page introduces a study comparing the chemical composition of traditional ayahuasca with analog preparations made for similar purposes. Researchers analyzed 102 samples obtained from communities and other sources and quantified DMT, tetrahydroharmine, harmine, and harmaline. They also used high-resolution mass spectrometry to explore candidate compounds including moclobemide, psilocin, and yuremamine.
Study design
The principal alkaloids were measured using UHPLC-MS/MS, and concentration distributions were compared by category of sample origin. Chemical analysis can directly measure what a sample contained and in what amount, but it does not assess users’ health outcomes or subjective experiences. The 102 collected samples are important material, but they do not form a random sample of brews worldwide.
Content
Concentrations of the principal constituents varied even among traditional preparations. The authors reported a tendency toward greater variation in DMT concentration among samples from neoshamanic contexts than among samples of Indigenous origin. Differences in plant species, plant parts, extraction methods, storage, and mixing ratios can alter chemical exposure even under the same name.
In 2 European analog samples, moclobemide, psilocin, DMT, and yuremamine were detected, while alkaloids thought to derive from Banisteriopsis caapi were present at very low levels. These examples show that the label “ayahuasca” alone does not guarantee a traditional botanical composition and that a preparation may contain a synthetic pharmaceutical or a different psychoactive constituent.
Results
The central finding is that ayahuasca samples varied quantitatively and that some analog products also had qualitatively different constituent profiles. Results from a sample analyzed in one clinical study therefore cannot be substituted for a different product merely because it shares the same name.
The results do not rank effects or determine the value of tradition through chemistry alone. They should be read as foundational evidence for chemical identity, safety assessment, and research reproducibility.
Limitations
Collection routes and regions were limited, and the authors state that analog preparations from Brazil and samples from European Santo Daime rituals were not included. This was not a comprehensive quality inspection covering compounds outside the analytical targets, microorganisms, heavy metals, and residues. Concentration differences also cannot be used to calculate the magnitude of clinical benefits or risks directly.
Analysis of a sample collected at one time does not guarantee subsequent batches from the same supplier or the sample’s condition after storage. For detected compounds, chemical values alone also may not establish whether the source was a plant, intentional addition, or cross-contamination.
Safety
Variation in composition makes effects, drug interactions, and emergency response more difficult to predict. If unexpected constituents such as the pharmaceutical moclobemide or psilocin are present, safety information premised on a traditional brew cannot be applied. Composition should not be judged as identical from a name, appearance, or seller’s description alone.
Analytical results do not themselves constitute a quality-assurance system. With samples of unverifiable origin and composition, risk cannot be predicted solely from assumptions about the known principal alkaloids.
Confirming chemical composition is a starting point for safety assessment; it does not replace human response, interactions, or individual variation.
Source and rights
Original source: Kaasik H, Souza RCZ, Zandonadi FS, Tófoli LF, Sussulini A. Chemical Composition of Traditional and Analog Ayahuasca. Journal of Psychoactive Drugs. 2021. DOI: 10.1080/02791072.2020.1815911.
This page is a detailed introduction based on published bibliographic information and the abstract; it is not a translation or republication of the original article or its figures and tables. Consult the original for concentrations and analytical conditions for individual samples.