CATEGORY

Small Molecules & Supplements

This category includes approved drugs studied outside their approved indications and experimental small molecules with preclinical evidence only. Methylene blue and metformin have approved uses. 5-Amino-1MQ has rodent findings and no exact-name ClinicalTrials.gov record as of July 12, 2026.

Stronger evidence in this category

Human trial or approved-indication records are available. Read each page for the exact scope and limits.

Evidence gaps

Public attention is ahead of the current human evidence or regulatory record.

Regulatory Risk

Low for metformin (FDA-approved, decades of safety data). Moderate for methylene blue (FDA-approved for methemoglobinemia, but cognitive enhancement use is off-label and non-pharmaceutical products raise purity concerns). High for 5-Amino-1MQ: no human clinical trials, not FDA-approved, sold only as a research chemical with zero human safety data.

ALL COMPOUNDS

5-Amino-1MQ editorial research scene

5-Amino-1MQ

5-Amino-1MQ is a small-molecule NNMT inhibitor with published efficacy findings limited to cell and rodent studies. No exact-name ClinicalTr...

Fisetin editorial research scene

Fisetin

Fisetin is a flavonoid found in several fruits and vegetables and studied as a possible senolytic compound. Animal and laboratory findings h...

Metformin editorial research scene

Metformin

Metformin is an FDA-approved medicine for type 2 diabetes. Longevity interest comes from biological mechanisms, observational studies, and t...

Methylene Blue editorial research scene

Methylene Blue

Methylene blue is an FDA-approved prescription treatment for acquired methemoglobinemia. Cognitive and mitochondrial claims discussed online...

NAD+ / NMN / NR editorial research scene

NAD+ / NMN / NR

NAD+ is an essential cellular coenzyme, while NR and NMN are precursors marketed for healthy-aging claims. Human studies show that these pre...

Spermidine editorial research scene

Spermidine

Spermidine is a naturally occurring dietary polyamine involved in cellular processes including autophagy. Animal studies support geroscience...