Peptide Therapy Guide

Peptide therapy is one of the fastest-growing areas of regenerative and functional medicine. Peptides are short chains of amino acids that may support a wide range of biological processes, from immune modulation and tissue recovery to metabolic optimization and cognitive performance. Below you will find all 25 peptides commonly used in clinical peptide therapy today.

Each peptide page includes detailed information on how it works, potential benefits, who commonly seeks it, and how to find a qualified provider near you.

All 25 Peptides

BPC-157

Recovery

BPC-157, or Body Protection Compound-157, is a synthetic peptide derived from a naturally occurring protein found in human gastric juice. It consists of 15 amin

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CJC-1295

Growth Hormone

CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) that has been modified to extend its half-life in the body. Originally developed to ad

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Ipamorelin

Growth Hormone

Ipamorelin is a selective growth hormone secretagogue that mimics the action of ghrelin, the body's natural hunger and growth hormone-releasing hormone. Unlike

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Thymosin Alpha-1

Immune

Thymosin Alpha-1 (Ta1) is a naturally occurring peptide composed of 28 amino acids, originally isolated from the thymus gland. It plays a central role in the ma

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Thymosin Beta-4

Recovery

Thymosin Beta-4 (TB4) is a 43-amino acid peptide that is naturally present in nearly all human tissues and cell types. It is the most abundant member of the bet

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Sermorelin

Growth Hormone

Sermorelin is a synthetic peptide consisting of the first 29 amino acids of naturally occurring growth hormone-releasing hormone (GHRH 1-29). It was one of the

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Semaglutide

Weight Management

Semaglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist that has become one of the most discussed peptides in modern medicine due to its significant e

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Tirzepatide

Weight Management

Tirzepatide is a novel dual-action peptide that acts as an agonist at both the glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (G

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PT-141

Sexual Health

PT-141, also known as Bremelanotide, is a synthetic peptide derived from Melanotan II that acts on melanocortin receptors in the central nervous system to influ

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GHK-Cu

Skin & Hair

GHK-Cu (copper peptide GHK-Cu, or glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring tripeptide with a strong affinity for copper ions. It is f

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Selank

Cognitive

Selank is a synthetic peptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences, based on the naturally occurring immunomodula

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Semax

Cognitive

Semax is a synthetic heptapeptide derived from the adrenocorticotropic hormone (ACTH) fragment 4-10 with an added Pro-Gly-Pro C-terminal tripeptide for enhanced

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DSIP

Cognitive

Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide first identified in 1977 from the cerebral venous blood of rabbits during induced sleep

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Epithalon

Longevity

Epithalon (also spelled Epitalon) is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) based on the naturally occurring epithalamin, a peptide produced by the pineal g

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NAD+

Longevity

NAD+ (nicotinamide adenine dinucleotide) is a critical coenzyme found in every living cell, playing a central role in cellular energy production, DNA repair, an

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Glutathione

Longevity

Glutathione is a tripeptide composed of glutamine, cysteine, and glycine, and is the most abundant intracellular antioxidant in the human body. It is produced n

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AOD-9604

Weight Management

AOD-9604 (Advanced Obesity Drug) is a modified fragment of human growth hormone, specifically amino acids 176-191, with an additional tyrosine at the N-terminus

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MOTS-c

Longevity

MOTS-c (Mitochondrial Open Reading Frame of the Twelve S rRNA type-c) is a mitochondrial-derived peptide consisting of 16 amino acids, encoded within the mitoch

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Humanin

Longevity

Humanin is a 24-amino acid mitochondrial-derived peptide first discovered in 2001 from a cDNA library of the brain of a patient with Alzheimer's disease. It was

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Tesamorelin

Growth Hormone

Tesamorelin is a synthetic analog of growth hormone-releasing hormone (GHRH) consisting of all 44 amino acids of human GHRH with an added trans-3-hexenoic acid

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Oxytocin

Sexual Health

Oxytocin is a naturally occurring nonapeptide hormone produced in the hypothalamus and released by the posterior pituitary gland. Often referred to as the 'bond

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Melanotan II

Skin & Hair

Melanotan II is a synthetic cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (a-MSH) developed at the University of Arizona. It acts on multip

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KPV

Immune

KPV is a tripeptide consisting of the amino acids lysine-proline-valine, derived from the C-terminal sequence of alpha-melanocyte-stimulating hormone (a-MSH). D

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LL-37

Immune

LL-37 is the only human cathelicidin antimicrobial peptide, consisting of 37 amino acids beginning with two leucine residues (hence its name). It is produced by

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Cerebrolysin

Cognitive

Cerebrolysin is a unique peptide preparation consisting of low-molecular-weight neuropeptides and free amino acids derived from porcine brain tissue through sta

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Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Peptide therapies should only be administered by licensed healthcare providers. Always consult with a qualified healthcare professional before starting any new treatment. PeptideLeads is a marketing agency and does not provide medical services.