Humanin

Longevity & Cellular Health
Preclinical

Humanin is a 24-amino-acid peptide produced by mitochondria (the energy centers of cells), encoded in mitochondrial DNA. It was discovered for its ability to protect brain cells from amyloid-beta toxicity, a hallmark of Alzheimer's disease. Research explores its roles in brain protection, metabolic regulation, and cellular stress resistance.

Last updated February 22, 2026
113 PubMed-Verified Studies
Popular
Research-Driven Dosage Reports
RouteSubcutaneous (SC) · Intraperitoneal (preclinical)
DoseNot established for humans (preclinical: 0.4-4 mg/kg in mice)
FrequencyDaily (preclinical protocols)
DurationVariable (preclinical)

Based on published research literature.

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Overview of Humanin

Activates cytoprotective signaling through STAT3 and the FPRL1 receptor, protecting cells from apoptosis and reducing mitochondrial dysfunction.

Cellular protection / longevity

Binds to FPRL1/FPRL2 receptors and the trimeric receptor complex (CNTFR/WSX-1/gp130), activating STAT3 and ERK survival signaling.

Directly inhibits Bax-mediated mitochondrial apoptosis, preventing cytochrome c release and caspase activation.

Circulating levels decline with age and correlate with age-related diseases, suggesting a role as an endogenous longevity factor.

Neuroprotection

Protects neurons from amyloid-beta (Abeta) induced cytotoxicity, the hallmark of Alzheimer's disease pathology.

Reduces oxidative stress in neuronal cells (proposed), preserving mitochondrial membrane potential under stress conditions.

Metabolic regulation

Improves insulin sensitivity through STAT3-dependent pathways (proposed), enhancing glucose uptake in peripheral tissues.

Binds to IGFBP-3 (proposed), modulating IGF-1 signaling and influencing growth factor availability

Read Full Humanin Dosage Guide

Research-backed dosing protocols, timing, and administration details

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Longevity & Cellular Health