Teens are using a highly potent form of marijuana. by drgreencerts | Sep 3, 2019 | News | 0 comments Twitter Facebook Nearly one in four Arizona teens have used a highly potent form of marijuana known as marijuana concentrate, according to a new study by Arizona State University researchers. Click here to read more. Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.