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Evidence is promising but limited

Solution: Always refrigerate reconstituted peptides (2-8C), protect from light, and never freeze after reconstitution

However, prolonged exercise (e.g., exceeding 45 min) may induce central fatigue, reduce frontal lobe activity, and increase neural noise, thereby impairing cognitive performance (Arne Dietrich and Audiffren, 2011

When this happens alongside a steep decline in NAD+, cells lose both the engine that powers repair and the shield that blocks damage

When administered subcutaneously (just under the skin) or intramuscularly (into the muscle), the peptide enters the bloodstream more directly, bypassing the digestive system entirely