How to Choose an NMN Supplement — 5 Things to Check

The 5 Things to Check

• 1. Dose — minimum 250mg per serving. Published clinical trials used 250-500mg. The majority of commercial NMN products contain 50-125mg. This is 10-25% of the evidence-based dose.
• 2. Form — standard NMN or NMN-H. NMN-H (hydrogenated) is more stable under real-world conditions. For consistent potency over the life of the product, NMN-H is the preferred form.
• 3. Third-party Certificate of Analysis. An independent lab must confirm actual NMN content and purity. Without this, label accuracy cannot be verified for a high-cost compound.
• 4. cGMP certified manufacturing. The minimum manufacturing quality standard. Without cGMP, there are no controls on batch-to-batch consistency or label accuracy.
• 5. Money-back guarantee. Signals manufacturer confidence. Suppliers of legitimate, high-quality NMN can afford to offer this because their products work as stated.

Red Flags to Avoid

• Price suspiciously low for the dose claimed — quality NMN at 500mg cannot be produced cheaply
• No Certificate of Analysis available on the manufacturer's website
• Proprietary blend hiding the actual NMN dose
• No clear specification of NMN form (standard vs NMN-H)

Frequently Asked Questions