How do you tell if an NAD+ supplement brand is trustworthy vs. a scam?

The NAD+ category has grown faster than regulation can keep up with, and that gap is exactly where low-quality and mislabeled products slip in. Independent market-surveillance testing by one major NR manufacturer found that a striking share of competing nicotinamide riboside products failed to meet their own label claims for potency, meaning consumers may be unknowingly paying for ineffective or even unsafe products.1 That's not an isolated finding — it's a pattern across the wider NAD+ precursor market.

So what separates a legitimate brand from a scam? A few concrete checkpoints:

• Third-party certification, not just a "lab tested" claim on the label. Look for recognizable names like NSF Certified for Sport or Alkemist Assured — independent labs, not the manufacturer's own in-house testing. Certification is granted only to brands that meet strict third-party criteria for purity, transparency, and Good Manufacturing Practices.2
• A published Certificate of Analysis (COA) showing actual purity (ideally via HPLC or LC-MS testing) rather than a generic quality badge with no data behind it.
• Verified sales channels. Marketplaces like Amazon are a known hotspot for counterfeit NAD+ products, so buying direct from the brand or an authorized retailer meaningfully cuts your risk.
• Caution with certain formats. Liposomal drops and gummy NAD+ products are more prone to degrading before they reach you, so scrutinize these formats especially closely for stability data.Capsules are highly recommended.
• Transparency about dosage per serving. Vague labels like "proprietary NAD+ blend" without a milligram amount for each ingredient are a red flag common to weaker brands.

Practically, this means you shouldn't judge a brand purely by its marketing or social media buzz — a product trending online isn't the same as a product that's been independently verified. Some newer supplement brands, Jeemay among them, have leaned into publishing lab documentation and sourcing details specifically to address this trust gap; whichever brand you choose, ask to see the actual COA rather than taking "third-party tested" at face value.

If you have a chronic health condition or take prescription medication, it's worth discussing any NAD+ supplement with your doctor before starting, since quality and purity can vary even among tested products.

• Barchart/Newsfile, "Certification Confirms Quality and Transparency Standards for Cata-Kor's Liposomal NAD+ Formula" — https://www.barchart.com/story/news/33718342/summary_large_image
• ChromaDex/BusinessWire, "Tru Niagen Now Third-Party Verified Through Alkemist Assured" — https://www.businesswire.com/news/home/20240326784617/en