Osteo Bi - Flex® Osteo Bi-Flex® is a brand built on quality and innovation, and has been responsible for leading the way in the joint care supplements category. Chat with us on Facebook Messenger. Learn what's trending across POPSUGAR. SHARE THIS PAGE: Get Alerts about Osteo Bi - Flex® By signing up, I agree to the Terms and to receive emails from POPSUGAR. Never Miss a Story! SWEET! You’re all signed up.