Colorado Natural Medicine Health Act Guide

What Is Proposition 122 — the Natural Medicine Health Act?

Colorado voters passed Proposition 122 — formally known as the Natural Medicine Health Act (NMHA) — in November 2022 with approximately 53% support. It is the most comprehensive state-level natural medicine reform in US history, combining personal-use decriminalisation with a regulated healing centre framework.

The Act decriminalised personal possession and use of several natural psychedelic substances for adults 21 and older, and created a two-tier licensing system: one for facilitators who guide sessions and one for healing centres where supervised sessions take place. Oversight rests with the Colorado Department of Regulatory Agencies (DORA) and its Natural Medicine Division.

Unlike Oregon's Measure 109, which is purely a service-access model, Colorado's law grants much broader personal rights — including home growing and personal sharing — while also building out a licensed commercial access pathway.

Which Substances Are Covered?

Proposition 122 covers five natural psychedelic substances under its decriminalisation provisions:

• Psilocybin and psilocin — the active compounds in "magic mushrooms," the first substances to be brought into the regulated healing centre framework (beginning 2024).
• Dimethyltryptamine (DMT) — a short-acting psychedelic found in many plants and animals, including in ayahuasca preparations.
• Ibogaine — an alkaloid from the African iboga plant, with potential in addiction treatment but significant cardiac safety risks requiring medical supervision.
• Mescaline (non-peyote sources) — mescaline derived from San Pedro, Peruvian torch, or other non-peyote cacti is included. Peyote itself is explicitly excluded out of respect for Native American Church ceremonial use, which predates state regulation and carries its own federal protections.

The healing centre regulated framework initially covers psilocybin and psilocin, with provisions for the other substances to be added to the commercial framework later as regulatory capacity develops.

Personal Possession and Decriminalisation

Under Proposition 122, Colorado adults 21 and older have the right to:

• Possess natural medicines within personal-use quantities (specific thresholds set by DORA regulations — verify current limits).
• Use natural medicines privately — at home or in non-public spaces.
• Share natural medicines with other adults without payment (gifting is permitted; commercial sale is not).
• Grow psilocybin mushrooms at home for personal use, within defined quantity limits, without a licence.

These are genuine legal rights, not simply enforcement deprioritisation. Law enforcement agencies are prohibited from arresting or prosecuting adults for conduct that falls within these protections.

What remains illegal under the Act:

• Sale of natural medicines outside of licensed healing centres
• Possession beyond personal-use quantity thresholds
• Use in public spaces
• Provision to anyone under 21
• Driving under the influence of natural medicines

Denver's Historic Decriminalisation: The Pioneer Ordinance

Before Proposition 122 existed, Denver became the first US city to take action on psilocybin. In May 2019, Denver voters passed Initiative 301, directing local law enforcement to deprioritise enforcement of psilocybin mushroom possession laws for adults. This was a decriminalisation measure — not legalisation — meaning state and federal law remained unchanged, but local police were instructed not to make arrests for personal possession.

Denver's bold step helped galvanise the broader movement that ultimately led to Proposition 122. The Denver Psilocybin Mushroom Policy Review Panel was established to monitor implementation and collect data, and its reports contributed to public education and policy development.

With Proposition 122 now in effect, Denver residents have state-level protections that go beyond the original municipal ordinance. The local ordinance remains symbolically important but has been largely superseded by the stronger statewide law.

Other Colorado Cities with Decriminalisation History

Prior to and alongside the Proposition 122 campaign, several other Colorado municipalities took action:

• Denver — Initiative 301 (2019): the original US city-level psilocybin decriminalisation, now effectively superseded by state law.
• Advocacy groups also worked in Boulder and other Front Range cities, though formal municipal measures were generally not needed once state-level reform passed.

Legal vs Decriminalised: Understanding the Difference

These terms are often confused but have distinct meanings in the Colorado context:

Aspect	Decriminalised (Personal Possession)	Legal (Healing Centres)
Can you do it?	Yes, within limits	Yes, at licensed facilities
Is it regulated?	Minimally — quantity limits only	Heavily — licensing, training, testing
Can you buy it?	No — only receive as gift or use personal supply	Yes — from licensed healing centre
Product testing?	No	Yes, required by DORA
Facilitator required?	No	Yes — licensed facilitator mandatory
Can you sell it?	No	Yes — only licensed centre operators
Federal law applies?	Yes — still Schedule I federally	Yes — federal conflict persists

The key practical distinction: the decriminalised personal-use framework gives individuals rights to grow, possess, and use without commercial access. The healing centre framework provides a commercial, regulated access pathway for people who want professional support or do not have personal access to natural medicines.

Colorado Healing Centres: How to Access

Colorado's healing centre licensing process began in earnest in 2023, with the first licences issued to centres beginning in late 2024. The rollout is phased and centres continue to be licensed over time.

Finding a Licensed Healing Centre

The Colorado Department of Regulatory Agencies (DORA) Natural Medicine Division maintains the official public registry of licensed healing centres and facilitators. This is the authoritative source for current licence status. Always verify a centre's licence is current before booking.

What to Expect at a Healing Centre

Colorado's healing centre model mirrors Oregon's service centre framework in many respects:

• A preparation meeting to review health history, set intentions, and understand what to expect
• A supervised administration session at the centre (typically 4–8 hours) with a licensed facilitator present throughout
• An integration session following the experience to process what arose
• On-site consumption only — product cannot be taken home
• Testing and labelling of all psilocybin products by licensed manufacturers

Cost Expectations

As Colorado's healing centre market is newer than Oregon's, pricing is still stabilising. Based on early market data and comparable services:

• Full service packages (preparation + administration + integration) are expected to range from approximately $1,000 to $3,000+
• Higher-end nature retreat or multi-day formats may exceed this range
• Health insurance does not cover healing centre services
• Some non-profit and community-oriented centres aim to offer sliding-scale pricing

Colorado's home growing allowance means some people may choose to work within the personal-use framework rather than accessing commercial centres, though this requires self-sourced or gifted product and does not include regulated manufacturing oversight.

Facilitator Training Requirements

Colorado healing centre facilitators must meet state-established training standards set by DORA. As of initial rollout, facilitators are required to complete:

• An approved education programme covering pharmacology, safety screening, facilitation techniques, ethics, and cultural humility
• Supervised practicum hours working with clients under licensed supervision
• Background checks and ongoing licence renewal requirements

DORA approved the first facilitator training programmes in 2023. Several of these programmes are affiliated with established therapeutic training institutions. Many facilitators entering the field have backgrounds in mental health, social work, nursing, coaching, or indigenous healing traditions.

Facilitators at healing centres are not required to be licensed mental health professionals, but the best outcomes are associated with facilitators who have robust training in both facilitation and therapeutic skills. When choosing a facilitator, ask about their training institution, hours of training, and practicum experience.

What Is Still Illegal in Colorado

Despite the broad reforms of Proposition 122, several important restrictions remain in place:

• Sale outside healing centres — commercial sale of natural medicines by unlicensed individuals or businesses is a criminal offence.
• Public use — use in public spaces, parks, vehicles, or any space visible to the public is prohibited.
• Providing to minors — giving natural medicines to anyone under 21 is illegal regardless of context.
• Driving under the influence — operating a vehicle while impaired by natural medicines is a DUI offence with the same legal consequences as alcohol or cannabis DUI.
• Possession beyond personal-use limits — quantities above the defined personal-use threshold may trigger trafficking or distribution charges.
• Federal law — psilocybin remains a Schedule I controlled substance under federal law. Federal properties (national parks, federal buildings, airports) fall under federal jurisdiction regardless of state law.
• Employment consequences — employers are not required to accommodate natural medicine use and may enforce drug-free workplace policies.

Timeline to Full Rollout

Colorado's implementation is phased across several years:

Milestone	Status / Approximate Date
Proposition 122 passed by voters	November 2022
Personal possession and growing decriminalised	Effective upon passage (2022)
Natural Medicine Advisory Board established	2023
DORA Natural Medicine Division created	2023
First facilitator training programmes approved	2023
Healing centre licensing begins	Late 2024
First healing centres open to clients	2024–2025
Additional substances (DMT, ibogaine, mescaline) to enter healing centre framework	Phased, post-2025 (dates subject to regulatory process)

Research Institutions and Integration Resources in Colorado

Colorado has a growing ecosystem of research and support around psychedelic-assisted therapy:

• University of Colorado Anschutz Medical Campus — researchers at CU have participated in psychedelic research collaborations and the academic medical community is increasingly engaged with the healing centre framework.
• Colorado School of Public Health — tracking public health implications of Proposition 122 implementation.
• Naropa University (Boulder) — a contemplative university with natural alignment to psychedelic healing frameworks; some faculty are active in the integration space.
• MAPS (Multidisciplinary Association for Psychedelic Studies) — national organisation with Colorado-based practitioners in its networks.
• Zendo Project — harm-reduction focused psychedelic support, with presence at Colorado events.
• Fireside Project — 741-741 — free peer support for difficult psychedelic experiences, available by text or call.
• Integration therapists — a growing number of licensed therapists in Denver, Boulder, and Fort Collins identify as psychedelic-informed and offer integration support, even when they cannot legally facilitate sessions themselves.

Safety and Harm Reduction

Decriminalisation and regulation reduce certain risks but do not eliminate them. Psilocybin carries genuine psychological risks for certain populations, and even within a licensed healing centre, preparation and informed consent are essential.

Who Should Exercise Particular Caution

• People with personal or family history of psychosis, schizophrenia, or bipolar I disorder — psilocybin can precipitate or worsen psychotic episodes in predisposed individuals.
• People currently taking lithium — combination with psychedelics carries significant seizure risk; do not combine.
• People on MAOIs — potentially dangerous serotonergic interactions.
• People with serious heart conditions — psilocybin temporarily increases heart rate and blood pressure.
• Pregnant or breastfeeding individuals — safety data is insufficient; avoid.
• People in acute emotional crisis or recent trauma — while psilocybin can ultimately support processing, doing so without adequate professional support during a crisis period carries elevated risk.

Harm Reduction for Personal Use (Outside Healing Centres)

For adults using natural medicines within their personal-use rights outside of commercial healing centres:

• Start very low — if you are new to psilocybin, begin with a low dose (under 1 gram of dried mushrooms or equivalent) before considering moderate or high doses. Effects are highly individual and dose-dependent.
• Set and setting — your mental state and physical environment profoundly affect the experience. Choose a safe, comfortable, familiar environment and approach with clear intentions.
• Sober sitter — for doses above microdose levels, have a trusted, sober person present who understands what you are doing and can support you if needed.
• No mixing — avoid combining with alcohol, cannabis, stimulants, or other substances. Combinations increase unpredictability.
• Plan for after — arrange to be in a safe place for the remainder of the day. Do not drive for at least 6–8 hours after ingestion.
• Know the source — home-grown from spores of known identity reduces the risk of mis-identification or adulteration compared to unverified market sources.

What to Do in a Difficult Experience

If you or someone you are sitting for enters a very challenging psychological state during a psilocybin experience:

• Remember that psilocybin effects are time-limited. Typical experiences last 4–6 hours and the intensity will pass.
• Change the setting — move to a different room, go outside, lie down, or dim the lights. Physical environment changes can shift the psychological state.
• Breathe slowly and deeply. Focused breath can help anchor attention and reduce panic.
• Contact the Fireside Project (741-741) — trained psychedelic peer supporters are available and non-judgemental.
• If there are physical safety concerns, call emergency services. Be honest with medical staff about what was taken.

Integration Resources in Colorado

Whether accessing a licensed healing centre or using natural medicines within personal-use allowances, integration support helps translate psilocybin experiences into lasting positive change. Colorado resources include:

• Psychedelic-informed therapists — search directories on Psychology Today, the Integration Circle, or Psychedelic Support (finder.psychedelicsupport.com) filtering for Colorado providers.
• Integration circles — peer support groups where people share and process psychedelic experiences in a facilitated community setting. Several operate in Denver and Boulder.
• Mindfulness and somatic practitioners — meditation teachers, somatic therapists, and bodywork practitioners can support integration at a non-verbal level, which is important given that psilocybin experiences often extend beyond what language can capture.

Frequently Asked Questions

If I grow mushrooms at home in Colorado and something goes wrong, am I protected?

Within the personal-use limits defined by Proposition 122 and DORA regulations, adults 21 and older have legal protection for home growing. However, if you exceed quantity limits or provide mushrooms to minors or for payment, those protections do not apply. Federal law also remains a factor on federal properties.

Can my employer fire me for using psilocybin legally under Colorado law?

Yes. Colorado employers may maintain drug-free workplace policies and are not required under state law to accommodate natural medicine use, even if the use occurred lawfully under Proposition 122 and outside of work hours. Employment law in this area is evolving; consult an employment attorney for specific guidance.

Is there a minimum age to access healing centres?

Yes. You must be 21 or older to access natural medicine healing centre services. This is a firm requirement and applies to both clients and to the personal-use decriminalisation provisions.

Can I fly into Colorado and legally use psilocybin?

State law covers your rights within Colorado. However, airports are federal property and subject to federal law (where psilocybin remains Schedule I). Flying with psilocybin — including bringing it home — is a federal offence regardless of Colorado state law.

Will my health insurance cover healing centre sessions?

No. Health insurance does not currently cover psilocybin healing centre services. All costs are out-of-pocket.

How does Colorado's law handle ibogaine specifically?

Ibogaine is included in the decriminalisation provisions of Proposition 122. However, ibogaine carries significant cardiac risks — it can cause fatal heart arrhythmias, particularly at higher doses or in people with underlying heart conditions. Any use of ibogaine should involve medical screening and ideally a clinician experienced with cardiac monitoring. When ibogaine enters Colorado's regulated healing centre framework, safety protocols are expected to reflect this elevated risk profile.

Further Reading

For comparison with other US states and international jurisdictions, see our North America Psilocybin Guide, our Oregon Psilocybin Services Guide, and our Legal Status Guide. For safety preparation guidance applicable to any psilocybin experience, visit our Safety & Harm Reduction section.