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Natural vs Synthetic Compounds

Psychoactive compounds can be natural, semisynthetic or fully lab-made. This guide shows how to classify them, why origin does not rank safety, and what that means for research.

Content last updated . This page has not been medically reviewed.

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Safety note. Where a substance comes from does not tell you how safe it is. Ibogaine comes from a plant and has documented heart-rhythm deaths. [1] Amanita mushrooms are natural and have caused severe poisoning. [2] For poisoning or a medical emergency call 911 (US) or your local emergency number; US Poison Help is 1-800-222-1222. This page is education only: no amounts, sourcing, extraction or synthesis information.

Definitions

  • Natural here means the compound occurs in a living organism, such as a plant or fungus. NIDA notes that many psychedelic drugs derive from plants and fungi, some with thousands of years of traditional or religious use, while some are synthetic (lab-made). [3]
  • Same molecule, different source. Mescaline occurs in cacti, and NIDA notes it can also be lab-made. [3] Psilocybin is found in fungi of the genus Psilocybe, [7] and a clinical trial used a proprietary synthetic formulation of psilocybin. [8]

Examples

SubstanceOrigin as described in sources read
PsilocybinOccurs in Psilocybe fungi [7]; clinical trials have used a synthetic formulation [8]
MescalineOccurs in cacti; can also be lab-made [9][3]
IbogaineAlkaloid from the iboga shrub [1]; one source describes ibogaine hydrochloride semi-synthesized from another plant, Voacanga africana [11]
Muscimol and ibotenic acidOccur in Amanita muscaria [12]

Natural does not mean safe or weaker

A pure compound and the organism it comes from are not the same thing, and neither is automatically safer.
  • Natural material varies. Reviews of Amanita muscaria describe variation in ibotenic acid and muscimol by species, tissue, drying and heating. [12] In a uniform laboratory analysis of 14 San Pedro-type cactus taxa, mescaline concentration spanned two orders of magnitude. [13] That is one study; it is not a typical value for any plant.
  • Natural products can be dangerous. See the ibogaine and Amanita examples above. [1][2]
  • Marketing claims such as "natural is gentler" or "pharmaceutical grade is risk-free" are marketing claims, not evidence. Also see natural is safer and other natural vs synthetic claims and natural does not mean safe.

Frequently asked questions

Is psilocybin from mushrooms the same as the synthetic version?

Both are psilocybin, but a mushroom is a whole organism whose contents vary, while trials have used a defined synthetic formulation. [8][7]

Are natural psychedelics safer?

No source supports that. Natural substances such as ibogaine and Amanita have caused serious harm. [1][2]

More details: evidence, limits and cautions

The details behind this page: cautions, limits of the evidence and where sources disagree. Open any note to read it.

How to read the evidence labels

Labels used on this page: approved medicine, promising but limited, insufficient evidence, marketing claim. Where we looked and found nothing usable, we write "Proper evidence not found."

Why origin matters for research and law
  • Clinical research uses defined products. A laboratory stability study notes that, in clinical studies, only the pure form of psilocybin had been administered so far. [7] A whole mushroom or plant preparation is a different thing from an isolated compound or a standardized clinical product. See traditional preparations vs isolated compounds.
  • US law lists substances and plants separately. Peyote is listed as all parts of the plant Lophophora williamsii, and mescaline is listed separately as a compound. [16] Laws change and this is not legal advice; other countries were not verified.
  • Cultural practice is not the isolated compound. Chacruna Institute describes iboga as central to Bwiti religion; the plant in its tradition is not the same as purified ibogaine. [11]
No safety ranking
No source we read supports ranking natural against synthetic substances for safety. Each substance needs its own evidence. Related guides: natural vs synthetic psychoactive substances, what are psychedelics and iboga vs ibogaine.
References
  1. Litjens RP, Brunt TM. How toxic is ibogaine? Clin Toxicol (Phila). 2016. PubMed 26807959. Read 2026-10-22.
  2. Stoeva-Grigorova S et al. Acute Amanita muscaria Toxicity: A Literature Review and Two Case Reports. Toxins (Basel). 2025. PubMed 41441606. Read 2026-10-22.
  3. NIDA, Psychedelic and Dissociative Drugs, National Institute on Drug Abuse. Read 2026-10-22.
  4. Tasker NR, Wipf P. Biosynthesis, total synthesis, and biological profiles of ergot alkaloids. Alkaloids Chem Biol. 2021. PubMed 33663751. Read 2026-10-22.
  5. Gotvaldova K et al. Stability of psilocybin and its four analogs in the biomass of the psychotropic mushroom Psilocybe cubensis. Drug Test Anal. 2021. PubMed 33119971. Read 2026-10-22.
  6. Goodwin GM et al. Single-Dose Psilocybin for a Treatment-Resistant Episode of Major Depression. N Engl J Med. 2022. PubMed 36322843. Read 2026-10-22.
  7. Vamvakopoulou IA et al. Mescaline: The forgotten psychedelic. Neuropharmacology. 2023. PubMed 36252614. Read 2026-10-22.
  8. Chacruna Institute, Iboga Conservation. Read 2026-10-22.
  9. Gunther A et al. Ibotenic Acid and Muscimol in Amanita muscaria: Chemistry, Sources of Variability, Analytical Determination, and Toxicological Significance. Molecules. 2026. PubMed 42796518. Read 2026-10-22.
  10. Ogunbodede O et al. New mescaline concentrations from 14 taxa/cultivars of Echinopsis spp. (Cactaceae) ("San Pedro") and their relevance to shamanic practice. J Ethnopharmacol. 2010. PubMed 20637277. Read 2026-10-22.
  11. Correia MS et al. Quantitative analysis of recreational psychoactive mushroom gummies in Portland, Oregon. Clin Toxicol (Phila). 2025. PubMed 39977248. Read 2026-10-22.
  12. US Code of Federal Regulations, 21 CFR 1308.11, Schedule I, read through the eCFR API. Read 2026-10-22.
Education, not medical advice. This page is for general information. It does not diagnose or treat any condition and is not a substitute for care from a qualified health professional. Natural does not automatically mean safe. Ask a clinician or pharmacist before changing your care, especially if you take medication, are pregnant or breastfeeding, or have a health condition.