Is the Booster considered safe? Nicolas Ting 19 July 2023 11:39 Updated Yes, our Booster is safe and all of its active ingredients have been clinically tested on humans for safety. Find more here. Related articles How many capsules should I take? Does the Booster contain flavours or sugars? What does the Booster contain? Can I take more than suggested? Is NMN considered safe? Comments 0 comments Please sign in to leave a comment.