New Voucher Code From Slendertone Written by Optimus Performance Marketing on August 1, 2013. Posted in Awin, Health & Beauty, Offers/Promotions, Promotion, Voucher Codes Slendertone Affiliate Newsletter News | Promotions New Voucher Code From Slendertone Slendertone are pleased to announce the release of a new voucher code. Please find details below:- Code - SLEN20 Offer - £10 off £120 Expires - 31.08.2013