What color should my NAD⁺ Nasal Spray be? Chris B March 27, 2020 16:59 Updated The NAD+ liquid drops should be an auburn/brown color due to the citric acid. Related articles Why We Use a Manufacture Date Instead of an Expiration Date What’s the difference between NAD⁺ and NMN? Does the sublingual powder come with a scoop? My jar had less scoops than it should have. Why? What is the most effective NMN supplement? Comments 0 comments Article is closed for comments.