Is humanin FDA-approved, and what does the research show?

What is humanin?

Humanin is a peptide, a short chain of amino acids, that the body makes itself ¹. It is 24 amino acids long ¹. Its code sits in the mitochondria, inside the gene for the 16S ribosomal RNA, a part of their own protein-making machinery ¹. That places it among the mitochondrial-derived peptides, a group named for where their code is found ⁶. It was first described in 2001, in a search for genes that kept cultured nerve cells alive against damage linked to Alzheimer's disease ⁷.

Some of the work used analogs rather than humanin itself: HNGF6A in rats ¹, HNG in mice ⁶. HNG is an analog in which the serine at position 14 is swapped for glycine, also written S14G-humanin ¹. A 2009 study in rats calls HNG more potent than the natural peptide, and built HNGF6A from it with a second substitution ¹.

Is humanin FDA-approved?

Humanin is not FDA-approved: Drugs@FDA lists no approved humanin product as of November 9, 2026 ². It is a research peptide studied in rats, mice and cells, and no study giving it to people was found ¹, ⁵, ⁶.

Compounding is a pharmacy making a medicine for one patient on a prescription. FDA keeps two lists of bulk drug substances nominated for compounding ³, ⁴. One is kept under section 503A, the other under section 503B, which covers outsourcing facilities ³, ⁴. Sections 503A and 503B are the parts of the Federal Food, Drug, and Cosmetic Act that cover compounding.

The 503A list, updated May 14, 2026, sorts nominated substances into three categories: under evaluation, raising significant safety concerns, and nominated without adequate support ³. The 503B list, updated March 21, 2025, uses three matching categories ⁴. Humanin appears on neither list, so no FDA category heading describes it ³, ⁴. No approved product and no lawful route to humanin as a medicine appears in any source opened.

See the FDA status of every peptide, updated weekly.

How does humanin work?

The mechanism is proposed from animal and cell work; nothing has been shown in people. In that 2009 study, humanin infused into the rats' brains improved the body's response to insulin ¹. The effect depended on STAT-3, a signaling protein in the hypothalamus, a brain region that regulates metabolism ¹. Blocking STAT-3 in the brain also blocked the liver's response to the analog HNGF6A given into a vein ¹. The authors read this as the liver being governed through the brain ¹.

Shown in cells, in a 2019 study: rat astrocytes, a support cell of the brain, make and release humanin, and ovarian hormones increased that release ⁵. Its authors propose that less humanin from astrocytes after menopause could be one route to the weakening of synapses, the junctions between nerve cells ⁵.

What does the research show?

Studied in animals for insulin action. The 2009 study used 92 three-month-old male rats and 9 Zucker diabetic fatty rats, a strain bred to develop diabetes ¹. Humanin infused into the brain improved insulin sensitivity in a laboratory test that holds blood sugar steady, with 5 to 7 rats per group ¹. Humanin itself infused into a vein did not significantly alter insulin action at the dose given, while the double analog HNGF6A did ¹. One infusion of HNGF6A lowered blood glucose by nearly half over four hours in 5 diabetic rats, against no change in 4 given saline ¹.

Studied in animals for aging. A 2020 study gave 18-month-old female mice HNG by injection twice a week for 14 months, in a study of 100 mice ⁶. At 28 months, treated mice had less visceral fat and more lean mass than controls, measured in 5 mice per group ⁶. Their lifespan did not differ from the controls' ⁶.

Studied in engineered animals. In the same 2020 study, mice engineered to make extra humanin were 12 percent shorter at 28 days and had litters 46.5 percent smaller than controls ⁶. Worms engineered the same way showed what the authors call a "small but consistent" increase in lifespan ⁶. The gain appeared only when the daf-16/FOXO gene, part of the insulin signaling pathway, was intact ⁶.

Studied in animals and cells for synapse loss. The 2019 study removed the ovaries of adult female rats at three months of age ⁵. Humanin expression in their hippocampus, the brain's memory center, was lower than in rats given a mock operation, with 3 animals per group ⁵. In cultured rat neurons from the hippocampus, a brief exposure to glutamate, a signaling chemical that harms neurons in excess, shrinks the dendrites, the branches that receive signals ⁵. Humanin prevented that shrinking and the loss of spots of synaptophysin, a synapse protein ⁵.

Measured in people, not given to them. Circulating humanin fell with age in humans and in mice in the 2009 study ¹. In the 2020 study, 18 children of centenarians from an Ashkenazi Jewish cohort, a group followed over time, had higher humanin levels than 19 age-matched controls ⁶. Spinal-fluid humanin in Alzheimer's patients was lower than in controls, in a comparison of seven people in all ⁶. These are observations of the body's own humanin; no study opened gave humanin or an analog to a person.

No published trial of humanin or its analogs in people was found in PubMed on November 9, 2026. Seven ClinicalTrials.gov records mentioned humanin on that date, and none tests the peptide; they measure its levels.

What are the side effects?

No source opened reports side effects of humanin in people, because no study opened gave it to a person ¹, ⁵, ⁶. In the 2020 mouse study, HNG-treated mice weighed less than controls; the authors read this as a metabolic effect rather than illness, since food intake did not differ ⁶. Mice bred to make extra humanin were smaller and had fewer offspring, and the authors link high humanin to lower reproduction ⁶. The 2009 rat study reports glucose and insulin measures and does not report toxicity or adverse effects ¹. FDA has published no safety words about humanin in any source opened, and no FDA warning letter naming it was found on November 9, 2026.

Humanin acts, in animals, on insulin signaling, on levels of IGF-1, a growth hormone messenger, and on the brain's control of the liver ¹, ⁶. No study opened reports what that does in a person over weeks or years, or how it interacts with other medicines.

In sport

Humanin is not named on the 2026 Prohibited List of WADA, the World Anti-Doping Agency ⁸. The list also has a class S0, "Non-approved substances," prohibited at all times ⁸. Its words: "Any pharmacological substance which is not addressed by any of the subsequent sections of the List and with no current approval by any governmental regulatory health authority for human therapeutic use (e.g. drugs under pre-clinical or clinical development or discontinued, designer drugs, substances approved only for veterinary use) is prohibited at all times" ⁸.

FDA's records were read for the status above; no other country's regulator was checked ². Whether S0 covers humanin is a question for an athlete's anti-doping organization.

What JumpstartMD offers

JumpstartMD does not prescribe humanin. Our peptide library covers it so you have the facts on its FDA status and the evidence, current as of November 9, 2026.

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Disclaimer

Compounded medications are not FDA-approved, and FDA does not review their safety, effectiveness, or quality before they are marketed. A licensed clinician decides after an evaluation whether a peptide is appropriate for you, and not every patient will qualify.