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NAD+ requires a different syringe and site because its acidity can degrade peptides on contact

The critical factor is maintaining peptide concentration between 1025mg/mL for optimal stability concentrations above 30mg/mL increase aggregation risk, while dilutions below 5mg/mL accelerate oxidative degradation during the 28-day refrigerated storage window

Others find evening dosing more convenient without apparent difference in results

Timing the two compounds around each other requires understanding their absorption and distribution profiles

(States that niacin should be used in pregnancy only if the benefit outweighs the risk