Comparison

Humanin vs Tesamorelin

Function

While Humanin exerts neuroprotective and cytoprotective effects in models of Alzheimer’s disease, ischemia, and metabolic stress, reducing apoptosis and improving cell survival7136141, Tesamorelin is FDA-approved to reduce excess visceral adipose tissue in HIV-associated lipodystrophy and is studied for broader body-composition, NAFLD, and cognitive effects via GH/IGF-1 axis modulation1893.

Mechanism

While Humanin works as a mitochondrial-derived 24-amino-acid peptide that protects cells against diverse apoptotic insults by interacting with cell-surface cytokine receptor complexes and intracellular targets, thereby activating pro-survival STAT3 and other pathways7136141, Tesamorelin is a full-length 44-amino-acid GHRH analog with an N-terminal trans-3-hexenoic acid modification that binds GHRHR, activating cAMP/PKA signaling to increase endogenous GH and IGF-1, with improved stability versus native GHRH182893102.

Length and Sequence

Humanin is 24 amino acids long, whereas Tesamorelin is longer as it has a length of 44 amino acids. Humanin is made up of a sequence of Methionine, Alanine, Proline, Arginine, Glycine, Phenylalanine, Serine, Cysteine, Leucine, Leucine, Leucine, Leucine, Leucine, Threonine, Serine, Glutamic acid, Isoleucine, Aspartic acid, Leucine, Proline, Valine, Lysine, Arginine, Arginine, Alanine. Tesamorelin is made up of a sequence of Tyrosine, Alanine, Aspartic acid, Alanine, Isoleucine, Phenylalanine, Threonine, Asparagine, Serine, Tyrosine, Arginine, Lysine, Valine, Leucine, Glycine, Glutamine, Leucine, Serine, Alanine, Arginine, Lysine, Leucine, Leucine, Glutamine, Aspartic acid, Isoleucine, Methionine, Serine, Arginine, Glutamine, Glutamine, Glycine, Glutamic acid, Serine, Asparagine, Glutamine, Glutamic acid, Arginine, Glycine, Alanine, Arginine, Alanine, Arginine, Leucine.

Receptor

Humanin

Binds a trimeric cytokine receptor complex consisting of CNTFR, WSX-1, and gp130, and can also signal via the G-protein–coupled receptor FPRL1/FPR2136141

Tesamorelin

Growth hormone–releasing hormone receptor (GHRHR) 9394103

Organism or Origin

Humanin

Human mitochondrial peptide encoded within the 16S rRNA gene region7685

Tesamorelin

Synthetic analog of human hypothalamic GHRH1893

Gene

Humanin

MT-RNR2

Tesamorelin

GHRH

Related articles

No related articles are linked to these peptides yet.

Sources

7Evidence of natural selection in the mitochondrial-derived peptides ..., https://www.nature.com/articles/s41598-023-41053-0
53Frequently Asked Questions, https://www.peptidejournal.org/peptides/humanin-mitochondrial-peptide-research
76Humanin - Wikipedia, https://en.wikipedia.org/wiki/Humanin
85MT-RNR2 - Wikipedia, https://en.wikipedia.org/wiki/MT-RNR2
141Humanin: a harbinger of mitochondrial-derived peptides? - PMC - NIH, https://pmc.ncbi.nlm.nih.gov/articles/PMC3641182/
18Tesamorelin: Benefits, Dosing & Where to Buy (2026) - Peptides, https://thepeptidecatalog.com/peptides/tesamorelin
28The Ultimate Guide to Tesamorelin | Las Vegas | Sky Health, https://www.skyhealthnv.com/tesamorelin
93Tesamorelin - FDA-Approved GHRH Analog Guide - PeptideMark, https://www.peptidemark.com/peptides/tesamorelin
94Growth-hormone-releasing hormone receptor - Wikipedia, https://en.wikipedia.org/wiki/Growth-hormone-releasing_hormone_receptor
102Tesamorelin: Molecular Characterization and Metabolic Research, https://biotechpeptides.com/2026/03/25/tesamorelin-molecular-characterization-growth-hormone-axis-modulation-and-metabolic-research/
103Growth-hormone-releasing hormone receptor - Wikipedia, https://en.wikipedia.org/wiki/Growth_hormone_releasing_hormone_receptor