The Peptide Report

Does NAD+ Nasal Spray Actually Work? 2026 Science Review - DrSeinfeld.com Operated by Ginspire Health LLC
May 20, 2026
An evidence-first answer to whether NAD+ nasal spray actually produces measurable cellular and cognitive effects. We break down bioavailability research, realistic timelines, and how to separate science from marketing hype.
NAD Nasal Spray vs IV Therapy 2026: Which Wins? - DrSeinfeld.com Operated by Ginspire Health LLC
May 09, 2026
Intranasal NAD+ and IV infusions both aim to raise cellular NAD+ — but they differ sharply in cost, convenience, and consistency. Here's how the two delivery methods actually compare in 2026.