Intracellular NAD+ is deficient in the majority of adults we see, and that deficiency is affecting energy, recovery, and cellular function in ways theyve learned to accept as normal aging. One thing that separates NAD+ from every peptide on this list: you can measure it
Volman V, Behrens MM, Sejnowski TJ
Retrospective Study #1 A retrospective analysis published in 2025 reviewed the medical charts of 283 adults who had been prescribed GLP1 receptor agonists and later visited a dermatology clinic for concerns about hair loss between 2021 and 2023
The exact length of time a person takes a GLP-1 medication will depend on several factors, including their weight loss goals, how well they tolerate the medication and their overall health status
But I agree, I certainly tell my patients that I cant vouch for the quality of some of these agents