02
The dose spectrum
Whole mushrooms are not standardized medicine. Two pieces that weigh the same may contain different amounts of psilocybin, even within one batch. The table is a language guide for dried material, not a recommendation to move upward.
| Category | Dried amount | Safety framing |
|---|---|---|
| Microdose intent | 0.05–0.25 g | Sub-perceptual intent is not guaranteed; impairment and anxiety can still occur. |
| Low | 0.5–1 g | Noticeable effects are possible. Treat unknown-strength material cautiously. |
| Moderate | 1–2.5 g | Substantial impairment, emotional intensity, and perceptual change may occur. |
| Strong | 2.5–5 g | Higher risk of panic, confusion, unsafe behavior, and need for support. |
| Very strong | 5 g+ | High-risk range, not a goal or rite of passage. |
03
Timing, dried mushrooms, and edibles
Oral effects often become noticeable in roughly 20 to 60 minutes, may continue building beyond that, and commonly last several hours. Food, formulation, individual metabolism, and other factors can shift the timeline. A slow onset is not evidence that more is needed.
Dried mushrooms are at least directly weighed, though their chemistry remains variable. Chocolates, gummies, and other edibles add uncertainty. If a product does not clearly state and verify a dried-mushroom equivalent, there is no responsible conversion from “pieces” to grams.
Conservative reference
Dosage range calculator
This does not calculate a ‘perfect dose.’ It narrows the guide’s low-end educational range and deliberately ignores body weight, which does not reliably predict response.
A cautious educational reference. First-time risk is shaped by health, medication, support, and setting, not dose alone.
Educational context only, not medical advice. Potency varies substantially. Do not mix substances, drive, or increase a dose because effects feel delayed.
05
Set and setting change the risk
Set includes mood, expectations, sleep, physical health, mental-health history, and current stress. Setting includes the location, people present, hazards, privacy, noise, and whether help is available.
A familiar room and a sober support person can lower some risks, but they cannot make psilocybin medically safe or guarantee a positive experience. Stay away from traffic, water, heights, weapons, fire, and public environments. Arrange transportation before any impairment begins.
06
A short risk-reduction checklist
- Do not proceed during an acute mental-health crisis or with thoughts of harming yourself or someone else.
- Ask a clinician or pharmacist about medications; never change a prescription for an experience.
- Do not use alone. Choose a sober, trusted support person who understands consent and emergencies.
- Use one known form, do not mix substances, and treat every new batch as unknown-strength.
- Call 911 for unconsciousness, breathing trouble, seizure, chest pain, or immediate danger. Call Poison Help at 1-800-222-1222 for suspected poisoning or uncertain mushroom identity.
FAQ
Common questions
Does body weight determine a psilocybin dose?+
Not reliably. Research and individual reports do not support a simple weight-based formula for whole mushrooms. Material strength, metabolism, medication, health, context, and sensitivity matter.
Are edibles equivalent to dried mushrooms?+
Only if a credible product provides a verified dried-mushroom equivalent. Unknown chocolates and gummies may contain inconsistent amounts or different substances.
When is it safe to take more?+
Redosing during onset is a common path to an unexpectedly intense experience. This guide does not recommend escalation. Wait for the full course and reassess only on another day, if at all.
Is 5 grams a standard goal?+
No. Five grams or more is a high-risk category, not a milestone. Panic, confusion, unsafe behavior, and need for emergency help become more concerning as intensity rises.
Sources