Dosing & Effects7 min read

From Micro to Heroic: Understanding Magic Mushroom Dose Sizes

Microdose, museum dose, full dose, heroic dose. The mushroom world has a whole vocabulary for amounts, and the words get thrown around loosely. This guide puts real numbers on those terms, walks through what each level typically feels like from the first yawn to the comedown, and explains why the same gram can feel completely different from one person, strain or batch to the next.

One important caveat before we begin: every number below is an approximate range for dried Psilocybe cubensis, the species behind almost every strain you will see in a shop. Mushrooms are a natural product. Psilocybin content is often cited at around 1% of dried weight, but lab studies have found big differences between strains, and even between individual mushrooms from the same strain grown in identical conditions. Treat every new bag as new.

Why grams are only half the story

A 2026 study in the Journal of Fungi grew 14 cubensis strains under controlled conditions and found psilocybin levels differed more than sevenfold between strains. The authors concluded that "both inter- and intra-strain biochemical heterogeneity persist even under controlled conditions." In plain terms, one gram from one bag is not guaranteed to equal one gram from another.

Other factors that change how a dose feels:

Body size and metabolism
Recent use, since tolerance builds for several days after a trip
Food in your stomach, which tends to slow and soften the onset
Mood, expectations and environment, which researchers call set and setting
Medications, especially some antidepressants, which can blunt effects
The form you take: dried, tea, capsule or edible

That is why the most sensible approach, for beginners and veterans alike, is to start low and go slow.

The general timeline

When mushrooms are eaten, psilocybin is converted to psilocin, which produces the effects. For dried mushrooms on a fairly empty stomach, a typical arc looks like this:

Onset: around 20 to 60 minutes. Often the first sign is yawning, a slight chill or a fluttery stomach.
Come-up: the next 30 to 60 minutes, when effects build. This is when nerves are most common.
Peak: roughly 1.5 to 3 hours after taking it.
Comedown: a gradual landing over the following one to three hours.
Total: about 4 to 6 hours, sometimes longer at higher doses, followed by an afterglow.

Tea tends to come on faster. Capsules are close to dried mushrooms, sometimes slightly slower. Chocolate and gummies can take 30 to 90 minutes or more, especially after a meal. Our guide on how long shrooms take to kick in covers each form.

Microdose: about 0.05 to 0.25 g

A microdose is meant to be sub-perceptual, meaning you should not feel high. No visuals, no time distortion, no giggles. People who microdose usually do it on a schedule, such as one day on and two days off, and describe subtle changes in mood, focus or energy.

What it feels like: a normal day. Some people notice nothing at all. If you notice clear effects, such as brighter colours or a wobbly feeling, you have taken more than a microdose.

What the research says: evidence is mixed. A 2021 self-blinding study from Imperial College London found people taking microdoses and people taking placebos reported similar improvements, suggesting expectations play a big role. Read more in our microdosing guide.

Low dose: about 0.5 to 1 g

Sometimes called a museum dose, because some people feel they could wander a gallery without anyone noticing.

What it feels like: a lift in mood, a light body buzz, music sounding richer, colours a touch more saturated and a tendency to laugh easily. With eyes closed you may see faint patterns. Thinking stays mostly clear, and you can hold a conversation.

Timeline: onset in 30 to 60 minutes, a mellow peak around the two-hour mark, and back to near normal within four hours.

Who it suits: first-timers, people trying a new strain or batch, and anyone who wants a gentle, social, outdoorsy experience. Still plan the day, skip driving and have a friend nearby.

Moderate dose: about 1 to 2.5 g

This is the range most people mean when they talk about a full trip.

What it feels like: clear visual changes, like breathing walls, shimmering textures and vivid closed-eye imagery. Emotions come in waves, so you might go from laughter to tears and back again. Time stretches. Thoughts become associative and surprising. Many people describe insights about relationships or patterns in their lives.

Body: nausea in the first hour is common, as are yawning, watery eyes, chills or warmth and a heavy, buzzy body. These usually pass by the peak.

Timeline: onset in 20 to 60 minutes, a peak from about 1.5 to 3 hours, and a slow comedown to around the 5 or 6 hour mark.

Who it suits: people with some experience who have planned a free day, a safe, comfortable place and ideally a sober trip sitter.

Strong dose: about 2.5 to 3.5 g

What it feels like: deep immersion. The sense of a separate self can soften or temporarily dissolve, which people describe as ego dissolution. Visuals can be intense and complex, and you may lose track of where you are. Experiences at this level can be among the most meaningful of someone's life, and also among the most challenging.

Michael Pollan, describing a high-dose psilocybin trip on NPR's Fresh Air, said: "I looked out and saw myself spread over the landscape like a coat of paint or butter." That kind of experience is not unusual at this level.

The research backs up the double edge. In a 2011 Johns Hopkins study comparing doses, extreme anxiety or fear was reported by 39% of volunteers at the two highest doses, while 72% had a mystical-type experience at those doses. That happened in a carefully supervised clinical setting with trained guides.

Who it suits: experienced people only, with a sober sitter present, a calm setting and no obligations.

Heroic dose: about 5 g and above

The phrase belongs to Terence McKenna, who championed "five dried grams" taken in silent darkness, alone, on an empty stomach. McKenna was an extraordinary storyteller, and his descriptions of high-dose journeys inspired a generation. He was also describing his own path, not a recommendation for a weekend.

What it feels like: often a complete break from ordinary reality, with little memory of time or self. People describe encounters, visions and experiences they struggle to put into words.

The risks are real. A large 2016 survey of challenging mushroom experiences found that the higher the dose, the more difficult the experience tended to be, and the median reported dose in those worst trips was 4 g of dried mushrooms. Nearly 11% said they put themselves or others at risk of physical harm during the experience.

Who it suits: very few people. If you ever go this far, do it with an experienced sitter and long after you know how your body responds to smaller amounts. We do not recommend going it alone, whatever McKenna advised.

Converting edibles and capsules

Chocolate, gummies, capsules and tea bags list an amount per piece, usually in grams or milligrams of dried mushroom. Use the label and the ranges above. For example, a 250 mg piece is a quarter of a gram. Remember that edibles come on slower, so wait at least two hours before even thinking about more. Our edible dosing guide explains this in detail.

Redosing and stacking

Taking more because you feel nothing after 45 minutes is the classic mistake. Effects often arrive all at once just after you redose. A good rule: wait two full hours with dried mushrooms or capsules, and longer with edibles, and if in doubt, try a larger amount on another day.

What is normal, and what is not

Normal at any full dose: yawning, nausea, feeling cold or warm, dilated pupils, a heavy or tingly body, visual patterns, emotional waves, time distortion and moments of confusion.

Not normal, and a reason to get help: chest pain, trouble breathing, a seizure, fainting, extreme agitation, someone trying to leave in an unsafe state, or a person who cannot be calmed and may hurt themselves. Call 911. Being honest with paramedics about what was taken helps them help you.

Who should not take mushrooms

Skip psilocybin if you are under 19, pregnant or breastfeeding, have a personal or family history of psychosis or bipolar disorder, or have heart problems. Lithium has been linked to seizures when combined with psychedelics. MAOIs and tramadol carry serious interaction risks, and SSRIs can blunt or change effects. Read our medications guide and talk to a doctor. Never drive under the influence. Psilocybin remains a controlled substance in Canada.

The bottom line

There is no perfect dose, only the right dose for you on a given day. Start lower than you think, write down what you took and how it felt, and work up slowly. Browse our dried mushrooms and capsules, and read the full safety guide before you start.

Sources

This guide is general information, not medical or legal advice. If you have health questions, talk to a health professional.