How do I contact Customer Service? Customer Service August 08, 2019 15:33 Updated Follow Contact us at (800) 985-8898 or support@ForthCBD.com. We're open Monday through Friday, 9:00 AM EST to 5:00 PM EST. Related articles What makes Forth CBD products so different from competitors? What is CBD? What do I do if I experience trouble with my Forth™ CBD products? What is Full Spectrum CBD? How long do I keep Forth™ CBD tincture drops under my tongue? Comments 0 comments Please sign in to leave a comment.