The clearest guidance comes from injection science more broadly
For a broader overview of the regulatory landscape, see our are research peptides legal in 2026 explainer
Various types of supplements are also available depending on your preferences, including oral capsules, nasal sprays, and liquid drops
oral less effective due to metabolism
You may benefit from NAD therapy if you experience: Chronic fatigue, brain fog, or burnout Difficulty recovering from stress, illness, or overtraining Signs of accelerated aging or oxidative stress A desire to optimize cognitive and physical performance Need for cellular detox (post-viral, toxin exposure, or alcohol recovery) NAD is appropriate for men and women of all ages and may be especially beneficial for those seeking preventative care or advanced recovery