Project CBD Special Report

Read our concerns with California’s proposed regulations for cannabis testing regarding pesticides, heavy metals, and solvents.

Many Animals Self-Medicate

Humans aren’t the only species who know how to ingest medicinal plants for their health.

Toxic Vape Oil

Toxic additives in some vape oil cartridges are endangering patients.

THCA: Less Is More

In preclinical tests, THCA was about 10 times more potent when used as a whole-plant extract rather than as an isolate.
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Latest news

How cannabis helped to ease the pain of changing times
Marijuana for the Masses
Why did cannabis become so popular in the 1960s? And why is it even more popular today?
Project CBD response to California cannabis testing regulations
Project CBD Responds to California’s Proposed Testing Requirements
Project CBD critiques California’s proposed regulations for cannabis testing regarding pesticides, heavy metals, and solvents and makes recommendations for amending them.
Animals know how to use medicinal plants
Many Animals Know How to Self-Medicate
Humans aren't the only species who know how to ingest medicinal plants for their health. Discover the botanical remedies that other animals take, and why they have evolved to do so.
How much THCA to take
Dosing THCA: Less is more
THCA (tetrahydrocannabinolic acid) is the non-psychoactive acid form of THC found in the plant when raw. THCA converts to THC when it is decarboxylated. Discover the clinical and laboratory research on THCA for epilepsy, chronic pain, digestive disorders, and more.
Cannabis & Spirituality
The genus Cannabis has been seen and felt as a being, or a deity, in multiple cultures. This book excerpt by Kathleen Harrison discusses some of the historical cultural and spiritual uses of the cannabis plant across the globe.
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Essential reading

Cannabis Dosing
Cannabis is personalized medicine. The right treatment depends on the person and condition being treated. For maximum benefit, choose cannabis products that include both CBD and THC.

What is CBD?
Cannabidiol—CBD—is a cannabis compound that has significant medical benefits, but does not make people feel “stoned."

CBD Misconceptions
With the growing awareness of CBD as a potential health aid there's also been a proliferation of misconceptions. Find questions and responses to common misinformation.

How Safe is Your Vape Pen?
Project CBD science advisor Jahan Marcu, PhD, reports on the hidden dangers of propylene glycol and vape pens that smolder.

Conditions
Medical cannabis research shows that CBD may be therapeutic for many conditions.

Smoke Signals: The Book

Smoke Signals: A Social History of Marijuana

Get the book by Project CBD director Martin A Lee

  • Winner of the American Botanical Council’s James A. Duke Excellence in Botanical Literature Award
  • “Every American should read this landmark book!” — Douglas Brinkley
Get the book

Upcoming events

Map of upcoming events

Breaking Convention

London , United Kingdom
Jun 30, 2017 to Jul 2, 2017

Seattle Hempfest 2017

Seattle , Washington , United States
Aug 18, 2017 to Aug 20, 2017

International Association for Cannabinoid Medicine Conference 2017

Cologne , Germany
Sep 29, 2017 to Sep 30, 2017
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