Psilocybin has always sparked curiosity. It’s no coincidence: this compound found in mushrooms and magic truffles can transform, for a few hours, the way we see the world, connect with ourselves, or think. But how does psilocybin affect the brain and what actually happens inside our minds to create these changes?
At Smartshop Love, we explain it without unnecessary jargon, without exaggeration, and based on scientific evidence, so you can clearly understand how this fascinating compound—used by humans for centuries—interacts with the brain.
What is psilocybin and why does it affect the brain so strongly?
Psilocybin is a natural compound found in several species of psychoactive mushrooms and in what are commonly known as magic truffles. For generations, these organisms have been part of rituals, ceremonies, and spiritual traditions.
Today, neuroscience studies them from a completely new perspective: how a single molecule can temporarily change the way the brain communicates and perceives itself.
The key lies in its relationship with serotonin.
Psilocybin and serotonin: A deep conversation inside the brain
Serotonin is one of the most important chemical messengers in the nervous system. It influences mood, perception, memory, creativity, sleep, and many other processes. In a way, it acts as an “internal language” that allows neurons to communicate.
When we consume psilocybin, whether through mushrooms or magic truffles, the body converts it into psilocin, a molecule that closely resembles serotonin. Because of this similarity, it can bind to certain receptors in the brain, especially the 5-HT2A receptors. That’s where everything begins.
How does psilocybin affect the brain?
1. Psilocybin converts into psilocin: The process begins in the body: psilocybin is dephosphorylated and becomes psilocin, the active form that actually affects the brain.
2. Psilocin activates key receptors: It works almost like flipping internal switches. The 5-HT2A receptors change their normal function, generating different patterns of brain activity and reorganizing how neural networks communicate.
3. The brain becomes more interconnected: Normally, different brain regions operate like separate “teams.” With psilocybin, those boundaries relax. Areas that don’t usually communicate begin exchanging information.
This can be experienced as:
- creative associations
- more intense sensory experiences
- changes in time perception
- less rigid thinking patterns
- a broader or more connected awareness
4. The brain’s “default self-talk” network becomes quieter: The Default Mode Network (DMN), which is linked to rumination and repetitive internal dialogue, reduces its activity. This is one reason many people describe feelings of mental lightness, clarity, or reduced psychological burden.
Potential benefits of psilocybin: what science is studying today
Psilocybin is neither a miracle cure nor simply a “trip.” What interests researchers is its ability to temporarily reorganize brain activity, which could have therapeutic applications in certain contexts.
1. Treatment-resistant depression: In clinical trials, some individuals who did not respond to traditional treatments showed improvements after controlled psilocybin sessions combined with psychological support.
2. Reduced anxiety and mental rumination: The calming of the Default Mode Network may help people view their thoughts from a new perspective.
3. Cognitive flexibility: After psilocybin experiences in clinical environments, many participants show greater openness and less rigid thinking.
4. Neuroplasticity: Preliminary studies suggest psilocybin may support the brain’s ability to reorganize and form new neural connections.
Risks, myths, and legal status
Psilocybin is not considered addictive and does not produce physical withdrawal symptoms, although the experience can be emotionally intense for some people—especially if it occurs in an unsuitable environment or without preparation. There are also several myths surrounding this compound that are worth clarifying: its effects are temporary, and there is currently no evidence that it causes physical damage to the brain. It also cannot be equated with conventional recreational drugs, as its psychological impact is often profound and requires respect, as well as a safe context or, in clinical settings, appropriate professional guidance.
In many European countries, psilocybin is regulated or prohibited. However, in the Netherlands, fresh magic truffles (sclerotia) and psilocybin microdoses are legal and can be purchased in licensed smartshops. This has allowed many people to explore this world from a safe, regulated environment with clear information.
A more flexible, open, and connected brain
When psilocybin converts into psilocin and activates serotonin receptors, the brain enters a more connected, communicative, and flexible state. That is why new perspectives can emerge and the mental noise we often carry may temporarily quiet down.
Research continues to evolve, and there is still much to discover. What we do know is that psilocybin, whether found in mushrooms or magic truffles, is not risk-free and always requires context, respect, and awareness of local laws to ensure a safe and responsible experience.