High-THC cannabis concentrates:
What you need to know

This website is part of a public health education campaign designed to provide evidence-based information about THC use. The content is intended for educational purposes only and does not promote or encourage the use, purchase, or distribution of cannabis products. Our goal is to help by sharing accurate, research-backed information.

Explore the information. Then share your perspective.

Read through the content on this site, then take our survey at the bottom of this page to help us understand how to better educate parents about THC and support the teens in their lives.

Complete the survey for a chance to win a $150 gift card.

Today’s cannabis isn’t what many adults remember.

New marijuana products have moved way beyond the comparatively mild joints of previous decades. Concentrates—like vape cartridges (“carts”), wax, shatter, and dabs—deliver very high doses of THC quickly.

Colorado’s official warning about marijuana concentrates lists serious potential harms, including psychosis, other mental health problems, CHS (severe, repetitive vomiting), and cannabis use disorder/dependence.

Quick definitions: What are concentrates?

Cannabis concentrates

Concentrates are cannabis extracts with high doses of THC, marijuana’s main mood-altering (high-inducing) chemical. They often show up as:

  • Vapes: cartridges/pods/pens

  • Wax/shatter/resin/rosin: a substance, often resembling earwax or glass, used with dab rigs that heat the concentrates to create vapor that is inhaled 

Why it matters: Higher THC exposure is linked with a higher risk of mental health problems, including psychosis and addiction.

“There is no level of THC that is safe for an adolescent or a developing brain.”

— Libby Stuyt, MD

Colorado’s warning on marijuana concentrates

The State of Colorado’s marijuana concentrate warning highlights four specific risks:

  1. Psychotic symptoms and/or psychotic disorder (delusions, hallucinations, or difficulty distinguishing reality)

  2. Mental health symptoms/problems

  3. Cannabis Hyperemesis Syndrome or CHS (uncontrolled and repetitive vomiting)

  4. Cannabis use disorder/dependence (physical and psychological dependence)


The State of Colorado’s marijuana concentrate warning contains a wealth of additional information. These warnings are required by the State of Colorado with the sale of THC concentrates.

Hear the facts from an expert, Colorado Psychiatrist Libby Stuyt, MD 

Visualization of the chemical compounds THC and CBD

Cannabis contains hundreds of chemicals, but THC and CBD are the best known. 

THC (tetrahydrocannabinol)
  • THC is the main psychoactive compound in cannabis; it’s what causes the “high.”

  • Higher THC potency or concentration is more likely to trigger mental and physical health problems.

CBD (cannabidiol)
  • CBD is not intoxicating.

  • Some research suggests CBD may moderate some effects of THC.

  • Some products called “CBD” may actually contain psychoactive THC derived from the hemp plant. These can be found in some grocery stores, convenience stores, and gas stations, and are often sold without age restrictions, testing, or health regulations. 

Why you should care

Many of today’s products are designed to maximize a more potent intoxicating effect of THC and may have less CBD than the cannabis plant used to have. That can change the experience—and the risks—especially when use is frequent.

It’s not just a natural plant

Genetically engineered cannabis plants and industrial processes to extract THC create ultra-potent THC concentrates, unlike any marijuana plant that ever existed in nature.

THC vs. CBD: how they’re different

(and why it matters)

The biggest risks for teens and young adults

The human brain does not fully form until about 25 years of age and is therefore more at risk of harm.

Risk tends to rise with higher THC levels, frequent use, and starting at a younger age.

Why concentrates raise risk: potency + frequency + discreet use

Concentrates make it easier to:

  • Get a very high THC dose very quickly

  • Use frequently (especially with discrete vapes that are easy to conceal, at home, school, or work)

As a result, users may consume far more THC, increasing the likelihood of problems. 

Not all cannabis use looks – or smells – the same. Smoking marijuana results in a strong skunk-like smell. Vaping doesn’t, so it’s easier to hide and use inside.

Parents and trusted adults can support healthy choices

In the News

CPR News:
What are the dangers of high-potency cannabis?

Addiction psychiatrist Dr. Libby Stuyt sees the effects of high-potency marijuana firsthand. And what she’s seen has led her to raise red flags.

The Gazette:
Guest Column

A powerful cautionary tale for Pikes Peak-area families

Myth vs. Fact

Myth:“It comes from a natural plant, so it can’t be harmful.”

Fact:  Many THC concentrates use highly processed extracts designed to maximize potency. Even today’s cannabis plants are genetically engineered to maximize THC.

Myth: “THC concentrates are basically the same as ‘weed’ or smoked marijuana.”

Fact: Concentrates deliver much higher THC doses, which can increase the likelihood of intense negative reactions and long-term mental health problems.

Myth: “If it’s legal, it must be safe.”

Fact:  The brain continues to develop until age 25. Legal status for adults over 21 doesn’t eliminate marijuana’s health risks. The State of Colorado’s warning highlights serious potential harms, and teens and young adults are at greatest risk.


Share your perspective.

Take our survey for a chance to win a $150 gift card and help us understand how to educate parents about THC.

Value this Info? Spread the Word.

Four steps to share the science of high-THC risks to parents and other trusted adults:

  • Tell Whitney@onechancetogrowup.org about a Pikes Peak-area group that might welcome a presentation. This could include faith, education, or community organizations.

  • Email three people you know about HighRiskTHC.org and why you found the info interesting. 

  • Post about HighRiskTHC.org on social media. Note one thing you learned or why you think others might find it useful.

  • Download and share campaign materials using the downloadable links below.

Knowledge is power. Let’s get the word out.

Downloads

11×17 Poster | English | Spanish

11×17 Poster | English | Spanish

Rack Card | English | Spanish

Research and Resources

State of Colorado expert information

Get additional support through these resources

  • El Paso and Teller County resources (click on Community Resources tab)

  • Safe2Tell: Anonymously report anything that concerns or threatens you, your friends, your family, or your community. But call 911 if there is an emergency in progress.

  • 988 Colorado: The 988 Colorado Mental Health Line is available for free, immediate, human support 24/7. 

  • One Chance To Grow Up: Resources for parents, policymakers, and media on THC and psychedelics legalization.

Medical disclaimer
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

Contact Us

Have questions or comments about the campaign and how to share it in your community? Need help accessing anything on this website? Please send us a message.

(This form is not for those needing resources or who are in crisis. If you need immediate support, please call 988. If you are in a life-threatening emergency situation, please dial 911).