Key Takeaways Avoid brands that hide NAD+ strength or use unclear dosing. A missing or vague ingredient list is a major warning sign. Lack of third party testing means the patch may not be pure or effective. Extreme marketing claims usually point to low quality formulas. Reliable brands have real, detailed user reviews you can trust. AI Generated Image 1. No Clear NAD+ Strength Listed A reliable brand tells you exactly how much NAD+ is in each patch. If the label only says pr
