Psilocybin Dosage Guide: How Much Is the Right Amount?
Dosage is the single most important variable in a psilocybin experience — more than strain, more than method of consumption. The range between a low dose (gentle, functional, mildly perceptual) and a high dose (full ego dissolution, visionary, confrontational) is vast. This guide explains how to think about dosage and what to expect at each level.
The Standard Dosage Scale (Dried P. cubensis)
| Dose Level | Amount | What to Expect | |---|---|---| | Microdose | 0.05–0.3g | Sub-perceptual; improved mood, focus, creativity. No visuals. | | Low / Museum | 0.5–1g | Mild enhancement; colors brighter, slightly altered thinking. Fully functional. | | Moderate | 1–2.5g | Clear perceptual changes; some visual activity, emotional openness, introspection. | | High | 2.5–3.5g | Strong visuals, significant emotional depth, time distortion. Challenging but manageable. | | Strong | 3.5–5g | Full psychedelic experience; ego dissolution possible, visionary states, very demanding. | | Heroic | 5g+ | Complete ego dissolution; peak visionary states. Recommended only for experienced users with experienced guides. |
Important: These ranges apply to dried Psilocybe cubensis. Potency varies significantly by strain. PE (Penis Envy) and APE strains may be 2x the potency of Golden Teacher — reduce doses accordingly.
The Potency Variable
Not all mushrooms have the same psilocybin content. Even within the same species, potency varies:
- Cultivar: PE > APE > Albino A+ > Golden Teacher > B+ in rough order of average potency
- Flush: First-flush mushrooms often have higher psilocybin concentrations than later flushes
- Drying: Properly dried mushrooms (under 50°F, desiccant) retain more psilocybin than room-dried
- Storage: UV light and humidity degrade psilocybin over time
- Individual mushroom variation: Caps tend to be more potent than stems; small caps can be more potent than large ones from the same flush
For wild mushrooms: potency is much more variable and accurate identification is essential before assuming dosage. Psilocybe azurescens and Psilocybe cyanescens can be 3–10x more potent than cubensis by weight.
Potency Testing
If you want to know what you're actually taking:
HPLC testing: Mail-in services like Miraculix or Bunk Police can return actual psilocybin/psilocin content by weight. Expensive but precise.
Ehrlich reagent: Confirms the presence of psilocybin (turns purple/violet). Does not quantify potency.
The lemon tek multiplier: Lemon juice pre-converts psilocybin to psilocin before ingestion, intensifying onset speed and peak intensity (often described as 1.5–2x the subjective intensity with earlier onset). Use only if you're intentionally amplifying the experience.
How to Approach Your First Experience
Step 1: Start with 1.5–2g. This is enough to clearly demonstrate what psilocybin does without overwhelming a first-time user.
Step 2: Set and setting. The environment and your mental state are as important as the dose. A trusted sober guide, a comfortable private space, and no obligations for the day.
Step 3: Don't redose. The urge to "add more" after 45–60 minutes when the effects seem mild is almost always a mistake. The peak has not arrived yet.
Step 4: Wait at least 2–4 weeks between sessions. Psilocybin builds rapid tolerance (cross-tolerance with LSD). Successive doses within days produce diminishing effects. More importantly, the integration period after a significant experience is as important as the experience itself.
Titrating Upward
If you've had a 1.5g experience and want to go deeper:
- Increase in 0.5–1g increments
- Always do one session before increasing the next
- Take notes after each session — what worked, what was challenging
- At 3g+, have a sober support person present
Dosage in Clinical Settings
Clinical psilocybin therapy uses standardized psilocybin (pharmaceutical-grade, not mushroom weight) in mg. COMPASS Pathways Phase 3 used 25mg synthetic psilocybin per session. Hopkins trials typically used 20–30mg.
Rough conversion: 25mg synthetic psilocybin ≈ 3–4g dried cubensis (at average potency). This is a significant therapeutic dose.
Factors That Affect the Experience Beyond Dose
- Body weight: The correlation is weak — don't simply scale by weight
- Metabolism: Fast metabolizers may have shorter, more intense peaks
- SSRIs/SNRIs: Significantly reduce effects due to serotonin receptor downregulation
- Stomach contents: Fasting before dosing intensifies and accelerates onset; a meal before reduces both
- Anxiety state: High baseline anxiety amplifies the anxiogenic potential at any dose
Resources
- Erowid Dose Chart: erowid.org/chemicals/psilocybin — extensive dose report library
- PsychonautWiki: Dose range documentation with community reports
- Fireside Project: 62-FIRESIDE — free peer support during difficult experiences