Research compound reference index

A reference index of compounds encountered in peptide research, grouped by class. Each entry lists what the compound is and its regulatory status — nothing more.

How to read this index. This is a classification reference, not a product catalogue and not a recommendation. Inclusion here is not an offer to supply, and several entries are licensed medicines noted as such. No entry describes effects, outcomes or use in humans or animals, because these materials are supplied only as research reference standards for laboratory work.

Regulatory status, defined

Research use only — not authorised as a medicine in the UK; supplied as a laboratory reference material.
Investigational — currently the subject of registered clinical trials; not yet authorised.
Licensed medicine — holds marketing authorisation in at least one jurisdiction. Prescription-only where indicated (POM).
Solvent / nutritional / cosmetic / blend — not a research peptide; classified by its actual category.

Metabolic research

Compound	Class / mechanism	Status
5-Amino-1MQ	Small-molecule NNMT inhibitor	Research use only
Adipotide / FTTP	Proapoptotic targeting peptide	Research use only — preclinical
AOD9604	Modified C-terminal hGH fragment	Research use only
Cagrilintide	Long-acting amylin analogue	Investigational
HGH Fragment 176-191	C-terminal fragment of human growth hormone	Research use only
L-Carnitine	Quaternary ammonium compound; fatty-acid transport cofactor	Nutritional compound
Lipo-C (with B12)	Methionine / choline / carnitine with cyanocobalamin	Compounded blend
Lipo-C (without B12)	Methionine / choline / carnitine preparation	Compounded blend
Mazdutide	GLP-1 / glucagon dual receptor agonist	Licensed in China
Retatrutide	GLP-1 / GIP / glucagon triple receptor agonist	Investigational — Phase 3
Semaglutide	GLP-1 receptor agonist	Licensed medicine (UK/US)
SLU-PP-332	Pan-ERR agonist (small molecule)	Research use only — preclinical
Survodutide	GLP-1 / glucagon dual receptor agonist	Investigational — Phase 3
Tirzepatide	GLP-1 / GIP dual receptor agonist	Licensed medicine (UK/US)

Growth hormone & IGF pathway

Compound	Class / mechanism	Status
CJC-1295 + Ipamorelin	Combined GHRH analogue and GHS-R agonist preparation	Research use only
CJC-1295 with DAC	GHRH analogue with albumin-binding Drug Affinity Complex	Research use only
CJC-1295 without DAC	Modified GRF(1-29)	Research use only
GHRP-2	GHS-R agonist hexapeptide	Research use only
GHRP-6	GHS-R agonist hexapeptide	Research use only
Hexarelin	Synthetic hexapeptide GH secretagogue	Research use only
HGH 191AA	Recombinant human growth hormone (somatropin, 191 aa)	Licensed medicine (POM)
IGF-1 LR3	Long R3 analogue of insulin-like growth factor 1	Research use only
Ipamorelin	Selective GHS-R (ghrelin receptor) agonist pentapeptide	Research use only
MGF	IGF-1Ec splice variant (mechano growth factor)	Research use only
PEG MGF	PEGylated mechano growth factor	Research use only
Sermorelin	GHRH(1-29) analogue	Formerly licensed; clinical use varies
Tesamorelin	Stabilised GHRH analogue	Licensed medicine (US)

Tissue repair & anti-inflammatory

Compound	Class / mechanism	Status
ARA-290	Erythropoietin-derived 11-residue peptide (innate repair receptor)	Investigational
BPC-157	Synthetic pentadecapeptide derived from a gastric protein sequence	Research use only
BPC-157 + TB-500	Combined preparation of both peptides	Research use only
KPV	Lys-Pro-Val tripeptide; C-terminal α-MSH fragment	Research use only
LL-37	Human cathelicidin antimicrobial peptide	Research use only
TB-500 (Thymosin Beta-4)	Actin-binding peptide fragment	Research use only
VIP	Vasoactive intestinal peptide; 28-residue neuropeptide	Research use only

Mitochondrial & longevity

Compound	Class / mechanism	Status
Epithalon (Epitalon)	Synthetic tetrapeptide (Ala-Glu-Asp-Gly)	Research use only
FOXO4-DRI	Retro-inverso peptide targeting the FOXO4–p53 interaction	Research use only — preclinical
Humanin	Mitochondrial-derived cytoprotective peptide	Research use only
MOTS-C	Mitochondrial-derived peptide (16 aa)	Research use only
NAD+	Pyridine nucleotide coenzyme	Research / nutritional compound
SS-31 (Elamipretide)	Cardiolipin-binding mitochondria-targeted tetrapeptide	Investigational

Cognitive & neuropeptides

Compound	Class / mechanism	Status
Adamax	Adamantane-modified Semax analogue	Research use only — limited data
Cerebrolysin	Porcine brain-derived peptide preparation	Licensed in some countries
Dihexa	Angiotensin IV-derived HGF potentiator	Research use only — preclinical
DSIP	Delta sleep-inducing peptide; nonapeptide	Research use only
Melatonin	Indoleamine hormone of the pineal gland	Regulated as medicine or supplement by jurisdiction
Oxytocin	Nonapeptide neurohypophysial hormone	Licensed medicine (POM)
P21 (P021)	CNTF-derived tetrapeptide	Research use only — preclinical
PE 22-28	Spadin-derived peptide; TREK-1 channel blocker	Research use only — preclinical
Selank	Synthetic heptapeptide; tuftsin analogue	Research use only
Semax	ACTH(4-10) analogue heptapeptide	Research use only

Bioregulator peptides

Compound	Class / mechanism	Status
Cardiogen	Short synthetic peptide (Khavinson series)	Research use only
Cartalax	Ala-Glu-Asp tripeptide	Research use only
Cortagen	Short synthetic peptide (Khavinson series)	Research use only
Pinealon	Glu-Asp-Arg tripeptide	Research use only
Vesugen	Lys-Glu-Asp tripeptide	Research use only

Immune & endocrine

Compound	Class / mechanism	Status
HCG	Human chorionic gonadotropin; glycoprotein hormone	Licensed medicine (POM)
Kisspeptin	KISS1-derived neuropeptide; GPR54 ligand	Research use only
Thymalin	Thymus-derived peptide preparation	Research use only
Thymosin Alpha-1	28-residue thymic peptide	Licensed in some countries

Melanocortins

Compound	Class / mechanism	Status
Melanotan 1	α-MSH analogue	Research use only
Melanotan 2	Cyclic non-selective melanocortin receptor agonist	Research use only
PT-141 (Bremelanotide)	MC4 receptor agonist	Licensed medicine (US)

Skin, hair & cosmetic

Compound	Class / mechanism	Status
AHK-Cu	Copper tripeptide complex	Research / cosmetic ingredient
Botulinum Toxin	Clostridial neurotoxin	Licensed medicine (POM); controlled
GHK-Cu	Copper-binding tripeptide (Gly-His-Lys)	Research / cosmetic ingredient
Glow	Blended cosmetic preparation	Blended preparation
Glutathione	Tripeptide (Glu-Cys-Gly); redox cofactor	Research / nutritional compound
Healthy Hair / Skin / Nails Blend	Vitamin and amino acid blend	Blended preparation
Klow	Blended preparation	Blended preparation
Lemon Bottle	Cosmetic injectable formulation (non-peptide)	Cosmetic product
Snap-8	Acetyl octapeptide-3	Cosmetic ingredient

Solvents & ancillaries

Compound	Class / mechanism	Status
AA Water	Dilute acetic acid solution	Reconstitution solvent
B12 (Cobalamin)	Cobalt-containing water-soluble vitamin	Nutritional compound
BAC Water	Bacteriostatic water; 0.9% benzyl alcohol	Reconstitution solvent
Relaxation PM	Amino acid and hormone blend	Blended preparation
Sterile Water	Water for injection; non-pyrogenic	Reconstitution solvent
SUPER Human Blend	Amino acid blend	Blended preparation

A note on licensed medicines in this list

Several compounds above hold marketing authorisation as medicines in the UK or elsewhere — among them somatropin, chorionic gonadotropin, oxytocin, botulinum toxin and the licensed GLP-1 receptor agonists. They appear here because they are part of the peptide research landscape and are frequently asked about. Their inclusion is descriptive. Licensed medicines are prescription-only and are not offered for human or animal use.

Research-use confirmation

Research compound reference index

Regulatory status, defined

Metabolic research

Growth hormone & IGF pathway

Tissue repair & anti-inflammatory

Mitochondrial & longevity

Cognitive & neuropeptides

Bioregulator peptides

Immune & endocrine

Melanocortins

Skin, hair & cosmetic

Solvents & ancillaries

A note on licensed medicines in this list

Related reading

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