Cornerstone Research Collective

Cornerstone Collective is California's first research-based medical cannabis collective, established in 2007 under California's Compassionate Use Act.

We are a mutual benefit non-profit collective formed by a small group of patients to ensure safe and reliable access to cannabis based medicine.

Our focus is on the science of cannabis and the wide variety of its medicinal applications. We employ a strict testing standard to ensure the purity and quality in selecting our medical grade products. Drawing on over 8 years of expertise our patients are given personalized service based on their specific conditions. Our goal is to provide a safe, responsible, and welcoming environment for each and every one of our members.