Psychedelic Stewardship

Microdosing

What microdosing is, what the research does and doesn't show, who should not do it, and where the law stands.

Evidence reviewed in September 2026.

What microdosing is

Repeatedly taking a small amount of a psychedelic, usually psilocybin or LSD, meant to stay sub-intoxicating: below the level where the effects impact your daily function.12

Researchers haven't agreed on how small, or how often.1 Studies generally describe low doses taken on some days and not others, over a period of weeks.23

This guide gives no amounts or schedules. The work offered on this site doesn't include dosing guidance.

What the research shows

Surveys of people who microdose

Report better mood, and less anxiety, depression and stress.

They can't separate the drug from expectations, or from who chooses to microdose.

  • Polito and Stevenson, 2019498 people, 6 weeks
  • Rootman and others, 202154,050 microdosers
  • Rootman and others, 20226953 microdosers, 1 month

Microdoses are active. People can often feel them, and they can change blood pressure, sleep and brain activity.73

Safety

Medications

Reports link lithium taken with a psychedelic to seizures. In one analysis of 62 such reports, 47% described a seizure.8

People taking common antidepressants, SSRIs and SNRIs, often report weaker psychedelic effects.910 One controlled study found escitalopram, an SSRI, left psilocybin's positive effects on mood in place.11

Questions about a prescription belong with whoever prescribed it.

Who research screens out

Research safety guidelines exclude people with a personal or family history of psychosis or bipolar disorder, and people who are pregnant. Because psychedelics raise pulse and blood pressure, the same guidelines check the heart first.12 Data on use during pregnancy are very limited.13

Those guidelines were written for research at full doses.12 Return to Baseline has its own screening, which its application sets out before asking anything.

The law

As of September 2026, psilocybin and LSD remain Schedule I drugs under US federal law, whatever a state or city allows.14

An executive order in April 2026 directed faster federal review of psychedelic medicines. It changed no drug's schedule.15

Oregon runs licensed psilocybin services for adults 21 and older, with no diagnosis required. Psilocybin is taken at a licensed service center, under a facilitator's supervision.1617

Colorado allows adults 21 and older to possess and use natural medicines, psilocybin among them, for personal use without sale. It issued its first healing center license in March 2025.1819

New Mexico's medical psilocybin program is due to open by December 31, 2026, for conditions including treatment-resistant depression and PTSD.20

Some cities, including Oakland and Washington, DC, have made adult personal use a low enforcement priority. Those measures set police priorities; possession stays illegal under federal law.2122

Outside the US, laws vary and change often. In Australia, approved psychiatrists have been able to prescribe psilocybin for treatment-resistant depression since July 2023.23

This summary isn't legal advice. Check the law where you live.

How the work here fits

The work offered here is education, preparation and integration support around a protocol someone has already decided to run.

It doesn't include supplying, recommending or dosing any substance, or being present for anything illegal where it happens.

Most of the attention goes to the practices around a protocol: breath, movement and attention, done daily and tracked. They keep going after the protocol ends.

Return to Baseline

12 weeks of one-to-one support for people in technology, around a 6-week protocol you run yourself.

Sources

Research records from PubMed, and official legal sources, checked in September 2026.

  1. Kuypers KP and others. Microdosing psychedelics: More questions than answers? An overview and suggestions for future research. Journal of Psychopharmacology, 2019.
  2. Özaydın Y, Canlan Özaydın B. Classical psychedelic microdosing, mood, and cognitive function: An umbrella review with narrative synthesis. Journal of Psychopharmacology, 2026.
  3. Cavanna F and others. Microdosing with psilocybin mushrooms: a double-blind placebo-controlled study. Translational Psychiatry, 2022.
  4. Polito V, Stevenson RJ. A systematic study of microdosing psychedelics. PLOS ONE, 2019.
  5. Rootman JM and others. Adults who microdose psychedelics report health related motivations and lower levels of anxiety and depression compared to non-microdosers. Scientific Reports, 2021.
  6. Rootman JM and others. Psilocybin microdosers demonstrate greater observed improvements in mood and mental health at one month relative to non-microdosing controls. Scientific Reports, 2022.
  7. Murphy RJ, Muthukumaraswamy S, de Wit H. Microdosing Psychedelics: Current Evidence From Controlled Studies. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, 2024.
  8. Nayak SM and others. Classic Psychedelic Coadministration with Lithium, but Not Lamotrigine, is Associated with Seizures: An Analysis of Online Psychedelic Experience Reports. Pharmacopsychiatry, 2021.
  9. Bonson KR and others. Chronic administration of serotonergic antidepressants attenuates the subjective effects of LSD in humans. Neuropsychopharmacology, 1996.
  10. Gukasyan N and others. Attenuation of psilocybin mushroom effects during and after SSRI/SNRI antidepressant use. Journal of Psychopharmacology, 2023.
  11. Becker AM and others. Acute Effects of Psilocybin After Escitalopram or Placebo Pretreatment in a Randomized, Double-Blind, Placebo-Controlled, Crossover Study in Healthy Subjects. Clinical Pharmacology and Therapeutics, 2022.
  12. Johnson M, Richards W, Griffiths R. Human hallucinogen research: guidelines for safety. Journal of Psychopharmacology, 2008.
  13. Albert OM, Arthur A. Psychedelic exposure in pregnancy: a scoping review to inform perinatal drug safety and clinical counseling. Therapeutic Advances in Drug Safety, 2026.
  14. Code of Federal Regulations, 21 CFR 1308.11, Schedule I. Checked September 2026.
  15. Executive order, Accelerating Medical Treatments for Serious Mental Illness, April 18, 2026.
  16. Oregon Revised Statutes, chapter 475A, psilocybin.
  17. Oregon Health Authority, Oregon Psilocybin Services.
  18. Colorado SB23-290, Natural Medicine Regulation and Legalization, 2023.
  19. Colorado Department of Revenue, Natural Medicine Division. Press release on the first healing center license, April 2, 2025.
  20. New Mexico Department of Health, Medical Psilocybin Program.
  21. City of Oakland, Resolution 87731 C.M.S., June 4, 2019.
  22. D.C. Law 23-268, Initiative 81, effective March 16, 2021.
  23. Therapeutic Goods Administration, Australia. Media release, February 3, 2023.