What it is
Humanin is a peptide of 24 amino acids that the human body makes. What sets it apart is where the instructions live: inside the mitochondrial 16S ribosomal RNA gene region — the mitochondrion's own DNA, rather than the chromosomes in the cell nucleus.
It was found in 2001, in a screen looking for factors that protect nerve cells from the kind of death seen in Alzheimer's disease, and it was the first peptide shown to be encoded that way. A whole category followed it: the mitochondrial-derived peptides. The other member of that family with an entry in this library is MOTS-c, a 16-residue peptide from the neighbouring 12S region, and the two are usually sold together.
It is marketed for longevity, metabolic health and mitochondrial function. The research literature largely runs in the opposite direction — treating humanin as something the body releases under stress, and therefore as a possible signal of that stress.
A large literature, and what the large numbers measure
542 PubMed records name it in title or abstract as of 2026-09-13. That is a bigger file than most compounds here have, and it reflects genuine scientific interest in the molecule.
The breakdown matters more than the total:
| Query | Records |
|---|---|
humanin[tiab] |
542 |
| with PubMed's human tag | 312 |
| mentioning mice, rats or mouse models | 235 |
| randomized-controlled-trial publication type | 5 |
| paired with centenarian | 6 |
| concerning HNG (S14G-humanin) | 103 |
The 312 is the number to be careful with. PubMed's human tag marks research involving people or human material. For a peptide the body produces, that overwhelmingly means studies that took a sample and measured how much of it was there. The tag is accurate; it simply answers a different question from the one a reader asking "has this been tested in people?" has in mind. This library has hit the same trap on MOTS-c, LL-37 and VIP — every time the compound is one the body already makes.
And 103 of the records are about a different molecule. HNG, written in papers as S14G-humanin, is humanin with a single amino acid substituted, and the literature describes it as a potent humanin analogue. Much of the protective animal work uses it for exactly that reason — it produces a clearer effect. A result obtained with HNG is evidence about HNG. The titles often say only "humanin analogue", so the distinction survives only if someone reads the methods.
The registry, read record by record
This is where the compound's file is genuinely unusual, and it takes one minute to check.
ClinicalTrials.gov held 7 records on 2026-09-13 — more than most compounds in this library manage. Five are observational. Two are filed as interventional, which ordinarily means somebody is being given something.
Here is what the two interventional studies intervene with:
- NCT07438002 — Analysis of Effects of High-intensity Physical Exercise in Subjects With Dialyzed Chronic Kidney Disease (Casa di Cura Dott. Pederzoli, n=50, recruiting). The intervention is exercise.
- NCT07678073 — Comparison of the Effects of General Anesthesia and Combined Spinal-Epidural Anesthesia (University of Gaziantep, n=68, recruiting). The intervention is the choice of anaesthetic.
In both, humanin is among the substances measured afterwards.
The five observational records are openly what they are: plasma humanin in acute kidney injury (Guangdong Provincial People's Hospital, n=60), humanin's value in diagnosis and prognosis of acute kidney injury after heart transplant (n=60), muscle biopsies taken during orthopaedic surgery in cerebral palsy (Eva Pontén, n=150), IVF outcomes in polycystic ovary syndrome (Assiut University, n=100), and the largest completed one — humanin isoforms in cardiac muscle and blood plasma against major complications after cardiac operations (University of Tartu, n=106, completed).
Across all seven records, not one administers humanin to anybody. The registry contains humanin studies and contains no humanin dosing. A reader who counts seven registrations and concludes the compound is in human trials has been misled by an accurate number — and the two that say interventional are what makes the count so convincing.
This is a distinct shape from the reasons this library has already catalogued for an empty registry. Here the registry is not empty. It is full of the wrong thing, and the label on two of the records points the wrong way.
What the biomarker question actually is
The studies above are asking whether the amount of humanin in someone's blood or tissue predicts how they do — after heart surgery, after a transplant, in kidney injury, in fertility treatment.
That question does not have an obvious answer, and the ambiguity is the reason it is being asked. Mitochondria appear to release these peptides under stress. So a high reading is consistent with a strong protective response, and equally consistent with a great deal of stress requiring one. Until those are told apart, a rising number cannot be read as a benefit — including the rise after exercise, which is the finding most often quoted in marketing.
Where it stands
There is no approved product and no application. Drugs@FDA and DailyMed both returned nothing on 2026-09-13.
There is also no dose, no route, no dosing interval and no safety profile for giving it to a person, anywhere in the published or registered record. That it is a natural human peptide is not a substitute: insulin, thyroid hormone and adrenaline are all natural, and all are dangerous in the wrong amount.
Only 6 of the 542 records involve centenarians, which is a thin foundation for the longevity claim that sells it.
The honest summary: humanin is a real and scientifically interesting molecule with a substantial laboratory literature, a growing role as a possible marker of mitochondrial stress, and — after twenty-five years — not one study in which it was given to a human being.
For the other mitochondrial peptide sold beside it, see the MOTS-c entry; for the mitochondrial compound in this library that does have registered human trials, SS-31; and for the cluster these claims belong to, peptides for longevity.