Honoree
Double Wood Supplements
Double Wood Supplements makes single-ingredient supplements in a cGMP facility in the USA. Its products are third-party tested, according to its site.
2026 category · 8 honorees
Functional Nutrition
Supplement brands that publish their testing and manufacturing practice on their own sites.
Editors' picks, no scores
Honoree
GenuinePurity
GenuinePurity sells liposomal NMN and other longevity supplements and posts certificates of analysis on its site. Orders come with a 97-day money-back guarantee.
Honoree
Just Glow
Just Glow sells healthy aging supplements made in Canada, such as NMN, berberine and glutathione. It describes its supplements as third-party lab tested.
Full Functional Nutrition register · 2026
Naturecan
- Stockport, United Kingdom · Honoree
- Naturecan sells CBD, wellness and longevity supplements from its base in Stockport, England. Its site says each batch is tested in independent laboratories.
Neurogan Health
- San Diego, United States · Honoree
- Neurogan Health is a family-owned supplement and skincare brand that makes NMN capsules and GHK-Cu serums. Its site names a research collaboration with Aalborg University.
Nootropics Depot
- Tempe, United States · Honoree
- Nootropics Depot is a supplement maker in Tempe, Arizona that tests products in its own lab and with third-party labs. Its site offers a lab tour and a scientific advisory board page.
ProHealth Longevity
- Carpinteria, United States · Honoree
- ProHealth Longevity sells NMN, NMNH and other longevity supplements that are made and lab tested in the USA. Its site dates the business to 1988.
Renue By Science
- Jacksonville, United States · Honoree
- Renue By Science makes NAD+ supplements, including liposomal NMN. Its site says every batch is tested by independent labs and the results are published.
Categories may have zero winners if no entrant meets the threshold. No winner pays a fee for inclusion.