Hair extension brand Hair Rehab London has announced the launch of two new additions to its hair offering. The Syn Snap Ponytail is an update of the wrap ponytails, offering a bouncy, wavy style that attaches by grip to users own up-do and is fixed firmly with the new unique snap band. For instant volume and length, the new Syn One-Piece is easily applied via a flat lace clip system that is positioned under the crown and hidden by users' own hair.