What you will notice

Weeks 1 to 2: a warm flush or brief nausea at injection, then often a lift in morning energy and a clearer head by the afternoon. Weeks 2 to 4: steadier energy through the whole day and faster recovery after exercise. Weeks 4 to 8: better stamina, more even mood and sleep that leaves you rested. Longer: NAD+ is a foundation, so the gain shows up as other peptides and training working better on top of it.