Is NAD+ injection better than NAD+ nasal spray?
Not automatically. Injection is usually the more direct systemic route, while nasal spray is more convenient and needle-free. The better format depends on goals, tolerability, health history, comfort with injections, travel needs, and clinician judgment. Patients should avoid clinics that promise one format is universally best.
Is NAD+ FDA-approved for anti-aging or longevity?
No. NAD+ products used in longevity clinics are generally compounded or supplement-adjacent products, not FDA-approved finished drugs for anti-aging, fatigue, cognitive enhancement, or longevity. A clinic should clearly explain that distinction and avoid guaranteed outcome claims.
Can NAD+ nasal spray reach the brain?
Intranasal delivery can use vascular nasal absorption and, for some drugs, nose-to-brain pathways. That general route concept does not prove that every compounded NAD+ nasal spray produces a specific brain or cognitive outcome. Ask the prescriber what evidence supports the proposed product and dose.
Who should be careful with NAD+ therapy?
Patients should review pregnancy or breastfeeding, active or recent cancer, significant cardiovascular symptoms, allergies, severe nasal or sinus disease for sprays, active dermatitis for topical products, and medication or supplement stacks. Some people may need specialist input or a different plan.
Can I combine NAD+ injection and nasal spray?
Only with clinician guidance. Some patients ask about combining formats for convenience, but the prescriber should set total exposure, avoid duplicate stacking, monitor tolerability, and simplify to one route if side effects or unclear benefits appear.
What online NAD+ sellers should I avoid?
Avoid no-prescription sellers, research-use products marketed for human use, clinics that skip health screening, vague pharmacy sourcing, aggressive anti-aging guarantees, disease-treatment claims, and protocols that do not provide follow-up instructions for side effects or non-response.