Been using it every day for nearly ten years. Studies indicate NAD precursors work as well as NAD itself, sometimes better. A third-party study backs this and lists this product among the two most dependable options. It is not the kind of supplement you feel strongly, yet I trust it is doing something. I notice the absence more when I skip a day than any big lift when I take it.
Started this 300 mg capsule three days back and curious if others using it see any changes. Research looked solid, indicating similar or superior outcomes compared to direct NAD shots, so skipping the shots made sense. Main worry is the site and ads resemble those exaggerated ineffective products.