Can I use more than one promotion online? 07 January 2021 17:16 Updated Only one promotional code can be applied per order. Terms and conditions for offers can be found here: https://www.renskincare.com/pages/promotions. Related articles How do I redeem my reward points? What can I do if the promotion code does not work? How do I change my password? Do you have any offers running at the moment? Where do I apply my promotion code?