Does Serenol contain any sugar or carbohydrates? Julia November 15, 2019 15:11 Updated Follow Both the sugar and carbohydrates are less than 1 gram per dose. Related articles How long does Serenol take to work? What is Royal jelly and why was it added to Serenol? Is Serenol non-allergenic? Can Serenol be taken with different types of medications (e.g., blood pressure, cholesterollowering, heart disease, ulcer, GERD?) Is Serenol gluten-free? Comments 0 comments Article is closed for comments.