Psilocybin. The word sounds scientific, but the substance itself is as old as humankind. For thousands of years, cultures have mindfully used mushrooms that contain this compound, for insight, clarity, and connection with nature.
Today we know more about the chemistry behind those experiences than ever. In this article we explain honestly and clearly what psilocybin is, how it works, and how it relates to modern alternatives such as 4-HO-MET.
What is psilocybin?
Psilocybin is a psychoactive compound that occurs naturally in more than 200 species of mushrooms. Chemically it is a tryptamine, a group of molecules structurally related to serotonin, the substance that plays a central role in mood, sleep and sense of well-being.
The substance is not active on its own. Only after your body converts psilocybin via an enzyme (alkaline phosphatase) does the active form arise: psilocin (also written as 4-HO-DMT). That conversion is fast, within 20 to 40 minutes of intake you notice the first effects.
Psilocybin has been the subject of research for decades. From Johns Hopkins University to UMC Amsterdam, the potential applications for depression, anxiety and cluster headaches are being carefully studied.
How does psilocybin work in your brain?
Once converted into psilocin, the substance binds to serotonin receptors in the brain, in particular the 5-HT2A receptor. This temporarily changes the way brain regions communicate with each other.
" When the default mode network becomes temporarily quieter, more connections form between brain regions that normally have little contact.
At the same time, the production of BDNF (Brain-Derived Neurotrophic Factor) increases: a protein involved in the growth and maintenance of nerve cells.
What are the effects?
The effects depend strongly on dose, set and setting. Broadly, there are three levels:
Sub-perceptual. No change in consciousness. Better focus, slight mood improvement.
Clearly noticeable: heightened senses, altered sense of time, deeper introspection.
More intense experiences, visual, emotional, deeply personal.
What is the difference with 4-HO-MET?
4-HO-MET is a synthetic analogue of psilocin with comparable effects, but with an exact dose per drop and legal in the Netherlands under the Commodities Act.
| Psilocybin | 4-HO-MET | |
|---|---|---|
| Origin | Natural | Laboratory |
| Dosing | Variable | Exact per drop |
| Legal (NL) | Prohibited | Permitted |
| Duration of effect | 4–6 hours | 4–6 hours |
Is psilocybin safe?
Relatively favourable safety profile: not physically addictive, no organ damage. But there are points to consider:
- Psychological sensitivity: strongly inadvisable with a (family) history of psychosis.
- Set and setting: a vulnerable state increases the chance of a difficult experience.
- Medication interactions: do not combine with lithium or MAO inhibitors.
Frequently asked questions
This article is for informational purposes only and intended for research purposes. The substances described are not intended for human consumption.