Receive a free sample of MET Rx's ISO 20 Gel via Facebook: 1. Like the MET Rx Facebook page to show support. 2. Click the link within the MET Rx post located under the "Like" and "Comment" buttons. 3. Complete and submit the form on the next web page, making sure you entered info in all the required fields (*) along with checking required boxes. *Offer is valid through April 30th, 2014 or until supplies runs out.* "Image Courtesy of Stuart Miles / FreeDigitalPhotos.net"