What is the Natural Lemon Flavor in Restoriix? Administrator March 01, 2018 19:07 The Natural Lemon Flavor is a natural-derived flavoring ingredient made from citrus. Related articles Are there any side effects of Restoriix? Restoriix How long can I take Restoriix for? Can Restoriix be taken with food or put in a shake? How do I take Restoriix with Slenderiix & Xceler8 drops? Comments 0 comments Please sign in to leave a comment.