Every few weeks, someone posts a version of the same question on a psychedelic forum: what if I just took 100 micrograms of LSD every two weeks, indefinitely? Not a microdose. Not a heroic dose. Something in between — enough to feel, not enough to dissolve the furniture. The replies range from cautious enthusiasm to outright alarm, and honestly, both reactions have merit.

This question sits at an interesting crossroads of the broader psychedelics conversation. It's not quite the territory of master plants and ceremony — there's no curandero, no icaros, no dieta. But it borrows from that world's logic: the idea that altered states, used with intention and rhythm, can shift something stuck. Whether that idea holds up at 100 micrograms every fourteen days is the question worth chewing on.

What 100 Micrograms Actually Feels Like

First, the dose itself. One hundred micrograms of LSD is what most people would call a light-to-moderate recreational dose. It's well above microdose territory (typically 5–20µg), and well below what veteran psychonauts consider a full psychedelic experience (200µg and up). At 100µg, expect a noticeable shift in perception — color saturation cranked up, mild visual drifting, time elongating in odd ways, and a general loosening of the usual mental scaffolding.

Emotionally, the effect varies wildly by person and setting. Some people report a soft, warm openness that lasts six to eight hours. Others find themselves wrestling with anxious loops or unexpected memories. The dose is high enough that you cannot reliably work, drive, parent, or hold a serious conversation with someone outside the experience. It's also high enough that something genuinely psychedelic can happen — insights, releases, the occasional emotional avalanche.

So when someone proposes doing this every two weeks, they're not proposing a maintenance routine. They're proposing twenty-six full-ish psychedelic experiences a year. That's a significant amount of inner work, even if each individual session feels modest.

Tolerance, Brain Chemistry, and Why Bi-Weekly Isn't Random

LSD has unusually fast and steep tolerance. Take a dose today, take the same dose tomorrow, and you'll feel almost nothing. The serotonin 5-HT2A receptors that LSD binds to downregulate quickly, and they take roughly two weeks to fully reset. This is why the bi-weekly cadence keeps surfacing — it's the shortest interval at which the drug reliably still works at full strength.

That biological reality is also a warning sign. The fact that your receptors need fourteen days to recover suggests that something meaningful is happening to your neurochemistry each time. Researchers studying psychedelic-assisted therapy generally space sessions weeks or months apart for exactly this reason — not because the effects wear off, but because the integration window matters more than the experience itself.

There's also the question of long-term receptor health. The honest answer is that we don't have great longitudinal data on people doing moderate LSD doses every two weeks for years. Small studies on classic psychedelics suggest the compounds themselves are physiologically gentle. But behavioral patterns, mood regulation, and the way you relate to your own emotions over time — that's a different question entirely.

The Integration Problem Nobody Wants to Talk About

Here's the thing that gets lost in the dose-and-frequency debate. The psychedelic experience itself is not the work. The work is everything that happens in the days and weeks after — the journaling, the conversations, the slow rewiring of habits and beliefs that the session pointed toward.

If you trip every two weeks, you essentially never finish integrating one experience before starting the next. You're constantly opening new material without closing the previous loop. For some people this feels generative — like an ongoing dialogue with their own psyche. For others it becomes a kind of psychedelic treadmill, where each session promises insight and the next one obscures it.

Therapists who work with psychedelic-assisted recovery generally suggest one of two patterns:

• A small number of intentional, high-dose sessions (one to four per year) with weeks of preparation and months of integration around each one.
• A microdosing protocol at sub-perceptual levels, with built-in breaks every few weeks to prevent tolerance and habituation.

What's notable is that almost nobody in the clinical or traditional plant-medicine world recommends the middle path — moderate doses on a frequent schedule. There's a reason. The middle path tends to give you the disruption without the depth, and the frequency without the digestion.

Why People Are Drawn to the Bi-Weekly Pattern Anyway

None of this is to dismiss the impulse. People reach for a routine like this for understandable reasons. They've had a powerful experience once and want to keep that door open. They're struggling with depression, addiction, or a stuck life pattern, and conventional treatment hasn't moved the needle. They've read the headlines about psilocybin trials for treatment-resistant depression and want to design their own version.

Some of these motivations are legitimate. The research on classic psychedelics for depression, addiction, and end-of-life anxiety is genuinely promising. Compounds like LSD, psilocybin, ibogaine, and ayahuasca seem to do something that standard antidepressants don't — they create a brief window of neural plasticity in which long-held patterns become temporarily flexible.

But that plasticity is also the catch. A window of openness without a plan is just a draft. If you keep prying the window open every two weeks without ever putting anything new in the room, you may just be letting the wind howl through. The substance is the catalyst. You are the chemistry.

What a More Considered Approach Looks Like

If you're seriously thinking about regular psychedelic use, here's what tends to separate the people who get something lasting from the people who plateau:

1. A specific question or intention — not “I want to feel better” but something concrete you're working with. Grief about a specific person. A pattern with a specific partner. An addiction with a specific trigger.
2. A real integration practice — journaling, therapy, somatic work, regular conversations with someone who knows what you're doing. Without this, the sessions are entertainment.
3. Honest tracking — not just mood, but behavior. Are you sleeping better? Are you reaching for alcohol less? Are you avoiding the same conversations you always avoid?
4. Breaks — actual extended pauses, not just the two-week tolerance window. Three months off, twice a year, can reveal whether the substance is doing the work or whether you are.
5. A community — even an informal one. Doing this alone, on a self-designed protocol, with no one to reality-check you, is where most of the people who got into trouble started.

Where Ceremony and Retreat Settings Come In

This is where the traditional plant-medicine world has something to offer the rationalist psychonaut, even if the latter rolls their eyes at icaros and feathered headdresses. A ceremony is not just a fancy delivery system for a molecule. It's a container — a set of practices, relationships, and rituals that hold the experience and frame what comes after.

You don't have to fly to Peru to access this. Plenty of people work with experienced facilitators in their own country, in legal or quasi-legal settings, with thoughtful preparation and follow-up. The point isn't the location. The point is that someone other than you is holding the structure, which lets you actually surrender into the experience instead of half-tripping while also playing the role of guide.

For people whose interest in regular dosing comes from a genuine therapeutic need — addiction, trauma, depression that won't lift — a few well-held retreat experiences will usually go further than a year of solo bi-weekly sessions. They're more expensive in the short term and less expensive in every other way. For readers who want to explore that direction, a range of curated psychedelic and plant-medicine retreats can be browsed on our marketplace here.

The Honest Verdict on the Bi-Weekly Routine

Is doing 100µg of LSD every two weeks dangerous? Probably not physiologically, for a healthy adult with no contraindications, no SSRIs in the mix, and no family history of psychosis. Is it likely to deliver the transformation people hope for? Probably not either. The cadence is too frequent for deep integration and too potent for sustainable maintenance. It splits the difference in a way that rarely serves anyone for long.

If you've been considering this kind of routine, the more useful question isn't what dose, what frequency. It's what am I actually trying to change, and what's the smallest, most considered intervention that might move it? Sometimes the answer is microdosing under supervision. Sometimes it's one carefully prepared retreat. Sometimes it's therapy without any substances at all. The molecule is rarely the bottleneck. What you do with the opening it creates — that's where everything lives.