Peptide Glossary

Complete A-Z index of research peptides with scientific data, categories, and links to detailed profiles.

#

  • 5-Amino-1MQ — Metabolic & Weight Loss. 5-Amino-1MQ is a small molecule inhibitor of nicotinamide N-methyltransferase (NNMT), an enzyme...

A

  • ACTH (Cosyntropin) — Hormones & Endocrine (Non-GH). Cosyntropin is a synthetic analog of the first 24 amino acids of adrenocorticotropic hormone (ACTH...
  • AOD-9604 — Metabolic & Weight Loss. AOD-9604 is a modified C-terminal fragment of human growth hormone (amino acids 176-191)....
  • ARA-290 (Cibinetide) — Immune & Inflammation. ARA-290 (cibinetide) is a synthetic 11-amino-acid peptide derived from the non-erythropoietic,...

B

  • BPC-157 — Injury, Repair & Recovery. Body Protection Compound-157 (BPC-157) is a 15-amino-acid fragment originally isolated from...

C

  • Cerebrolysin — Cognition, Mood & Neuroprotection. Cerebrolysin is a porcine brain-derived peptide preparation containing low-molecular-weight...
  • CJC-1295 (Modified GRF 1-29) — Growth Hormone / IGF-1 Axis. CJC-1295 is a synthetic GHRH (Growth Hormone-Releasing Hormone) analog with extended duration due...
  • CJC-1295 with DAC — Growth Hormone / IGF-1 Axis. CJC-1295 with DAC (Drug Affinity Complex) is a long-acting GHRH analog that uses a...
  • Cortagen — Cognition, Mood & Neuroprotection. Cortagen is a synthetic tetrapeptide bioregulator (Ala-Glu-Asp-Pro) developed at the St. Petersburg...

D

  • Dihexa — Cognition, Mood & Neuroprotection. Dihexa is a synthetic hexapeptide analog of angiotensin IV with potent nootropic properties....
  • DSIP (Delta Sleep Inducing Peptide) — Cognition, Mood & Neuroprotection. DSIP is a naturally occurring neuropeptide first isolated from rabbit brain tissue. Research...

E

  • Epitalon (Epithalon) — Longevity & Cellular Health. Epitalon is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) studied primarily in Russia. Research...

F

  • Follistatin 344 — Performance & Body Composition. Follistatin is a naturally occurring glycoprotein that binds and inhibits myostatin, a negative...

G

  • GHK (Tripeptide) — Injury, Repair & Recovery. GHK (Gly-His-Lys) is a naturally occurring tripeptide found in human plasma, saliva, and urine...
  • GHK-Cu (Copper Peptide) — Skin, Hair & Aesthetics. GHK-Cu is a naturally occurring tripeptide-copper complex found in human plasma, saliva, and urine....
  • GHRP-2 — Growth Hormone / IGF-1 Axis. GHRP-2 (Growth Hormone Releasing Peptide-2) is a synthetic hexapeptide that stimulates growth...
  • GHRP-6 — Growth Hormone / IGF-1 Axis. GHRP-6 (Growth Hormone Releasing Peptide-6) is a hexapeptide that stimulates growth hormone release...
  • Gonadorelin (GnRH) — Hormones & Endocrine (Non-GH). Gonadorelin is a synthetic form of gonadotropin-releasing hormone (GnRH). Used diagnostically and...

H

  • Hexarelin — Growth Hormone / IGF-1 Axis. Hexarelin is a synthetic hexapeptide growth hormone secretagogue, considered one of the most potent...
  • HGH Fragment 176-191 — Metabolic & Weight Loss. HGH Fragment 176-191 is a stabilized fragment of the C-terminal portion of human growth hormone...
  • Humanin — Longevity & Cellular Health. Humanin is a 24-amino-acid mitochondrial-derived peptide encoded in the 16S rRNA gene. Discovered...

I

  • IGF-1 LR3 — Growth Hormone / IGF-1 Axis. IGF-1 LR3 (Long R3 IGF-1) is a modified analog of insulin-like growth factor 1 with an arginine...
  • Ipamorelin — Growth Hormone / IGF-1 Axis. Ipamorelin is a selective growth hormone secretagogue developed by Novo Nordisk. It stimulates GH...

K

  • Kisspeptin-10 — Hormones & Endocrine (Non-GH). Kisspeptin is a neuropeptide that plays a crucial role in reproductive hormone regulation. Acts...
  • KPV — Immune & Inflammation. KPV is a naturally occurring tripeptide (Lys-Pro-Val) derived from the C-terminal end of...

L

  • Liraglutide — Metabolic & Weight Loss. Liraglutide is a GLP-1 receptor agonist with 97% sequence homology to native GLP-1. FDA-approved as...
  • LL-37 (Cathelicidin) — Immune & Inflammation. LL-37 is an endogenous human antimicrobial peptide (cathelicidin) that plays a role in innate...

M

  • Melanotan 1 (Afamelanotide) — Skin, Hair & Aesthetics. Melanotan 1, also known as Afamelanotide, is a synthetic analog of alpha-melanocyte stimulating...
  • Melanotan II — Skin, Hair & Aesthetics. Melanotan II is a synthetic analog of alpha-melanocyte stimulating hormone (alpha-MSH) that...
  • MGF (Mechano Growth Factor) — Performance & Body Composition. MGF (Mechano Growth Factor) is a splice variant of the IGF-1 gene produced in response to...
  • MK-677 (Ibutamoren) — Growth Hormone / IGF-1 Axis. MK-677 (Ibutamoren) is an orally active, non-peptide growth hormone secretagogue that mimics the...
  • MOTS-c — Longevity & Cellular Health. MOTS-c is a 16 amino acid mitochondrial-derived peptide encoded in the 12S rRNA gene. First...

N

  • NAD+ — Longevity & Cellular Health. Nicotinamide adenine dinucleotide (NAD+) is a critical coenzyme found in every living cell. It is...

O

  • Oxytocin — Hormones & Endocrine (Non-GH). Oxytocin is a naturally occurring nonapeptide hormone produced in the hypothalamus. Known as the...

P

  • PE-22-28 — Cognition, Mood & Neuroprotection. PE-22-28 is a synthetic 7-amino-acid peptide derived from the spadin family, designed to inhibit...
  • Pinealon — Cognition, Mood & Neuroprotection. Pinealon is a synthetic tripeptide bioregulator (Glu-Asp-Arg) developed in Russia, targeting pineal...
  • PT-141 (Bremelanotide) — Sexual Health & Libido. PT-141 (Bremelanotide) is a melanocortin receptor agonist studied for sexual dysfunction. Works...

R

  • Retatrutide — Metabolic & Weight Loss. Retatrutide is an investigational triple agonist targeting GIP, GLP-1, and glucagon receptors...

S

  • Selank — Cognition, Mood & Neuroprotection. Selank is a synthetic heptapeptide analog of tuftsin developed in Russia as an anxiolytic and...
  • Semaglutide — Metabolic & Weight Loss. Semaglutide is a GLP-1 receptor agonist with 94% sequence homology to human glucagon-like...
  • Semax — Cognition, Mood & Neuroprotection. Semax is a synthetic heptapeptide derived from ACTH(4-10) fragment, developed in Russia for...
  • Sermorelin — Growth Hormone / IGF-1 Axis. Sermorelin is a synthetic 29-amino acid analog of growth hormone-releasing hormone (GHRH). It was...
  • SNAP-8 (Acetyl Octapeptide-3) — Skin, Hair & Aesthetics. SNAP-8 is an octapeptide used in cosmetic applications to reduce wrinkles. Works by inhibiting...
  • SS-31 (Elamipretide) — Longevity & Cellular Health. SS-31 (Elamipretide) is a mitochondria-targeted tetrapeptide that concentrates in the inner...

T

  • TB-500 (Thymosin Beta-4 Fragment) — Injury, Repair & Recovery. TB-500 is a synthetic peptide fragment derived from Thymosin Beta-4, a naturally occurring protein...
  • Tesamorelin — Growth Hormone / IGF-1 Axis. Tesamorelin is a synthetic growth hormone-releasing hormone (GHRH) analog used for reducing...
  • Thymalin — Immune & Inflammation. Thymalin is a polypeptide complex originally extracted from calf thymus glands, developed in...
  • Thymosin Alpha-1 — Immune & Inflammation. Thymosin Alpha-1 (Tα1) is a 28 amino acid peptide naturally produced by the thymus gland....
  • Tirzepatide — Metabolic & Weight Loss. Tirzepatide is a dual GIP/GLP-1 receptor agonist for weight management and type 2 diabetes....

V

Peptide Terminology

Reconstitution
The process of dissolving lyophilized (freeze-dried) peptide powder in bacteriostatic water.
Subcutaneous injection
An injection into the fatty tissue layer beneath the skin, the most common peptide administration route.
Lyophilized
Freeze-dried. Most research peptides are sold as lyophilized powder for stability.
Bacteriostatic water
Sterile water with 0.9% benzyl alcohol preservative, used to reconstitute peptides.
Half-life
Time for half of a peptide to be eliminated from the body. Determines dosing frequency.
Secretagogue
A substance that promotes secretion. GH secretagogues stimulate growth hormone release.
GLP-1 agonist
A compound activating GLP-1 receptors, used in weight loss research (e.g., Semaglutide).

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