Home / Peptides

68 profiles,
one vetted library.

Every profile includes mechanism, evidence scorecard, bias-screened research log, dosing, and questions for your provider.

For educational purposes only. Profiles are not medical advice and many peptides discussed are not FDA-approved for the uses described. Consult your healthcare provider before making health decisions.

Grade key: A Strong Evidence B Emerging C Theoretical D No Human Data
C
Weight Management
5-Amino-1MQ
5-Amino-1-Methylquinolinium

5-Amino-1MQ is a small molecule inhibitor of nicotinamide N-methyltransferase (NNMT), an enzyme involved in cellular energy metabolism. It w…

Theoretical Read →
C
Skin & Hair
AHK-Cu
AHK-Cu (Alanine-Histidine-Lysine Copper Peptide)

AHK-Cu is a copper-binding tripeptide (Ala-His-Lys-Cu) structurally related to GHK-Cu, the well-studied copper peptide. It has been investig…

Theoretical Read →
B
Weight Management
AOD-9604
Advanced Obesity Drug 9604

AOD-9604 is a modified fragment of human growth hormone (hGH fragment 177-191) that was developed by Metabolic Pharmaceuticals in Australia …

Emerging Read →
B
Immune Support
ARA-290
Cibinetide (ARA-290)

ARA-290 (cibinetide) is an 11-amino-acid peptide derived from the structure of erythropoietin (EPO) that selectively activates the innate re…

Emerging Read →
B
Skin & Hair
Argireline
Argireline (Acetyl Hexapeptide-8)

Argireline is the trade name for acetyl hexapeptide-8 (formerly designated acetyl hexapeptide-3), a synthetic six-amino-acid topical cosmeti…

Emerging Read →
B
Recovery & Healing
BPC-157
BPC-157 (Body Protection Compound-157)

BPC-157 is a synthetic pentadecapeptide (15 amino acids) derived from a partial sequence of body protection compound found in human gastric …

Emerging Read →
D
Cognitive & Neuro
Brenipatide
Brenipatide (LY3537031)

Brenipatide (development code LY3537031, also referenced in earlier materials as LY3843513) is an investigational once-monthly, long-acting …

No human data Read →
B
Weight Management
Cagrilintide
Cagrilintide

Cagrilintide is a long-acting amylin analog developed by Novo Nordisk for the treatment of obesity. Amylin is a hormone co-secreted with ins…

Emerging Read →
B
Weight Management
CagriSema
CagriSema (Cagrilintide / Semaglutide)

CagriSema is an investigational, fixed-dose, once-weekly subcutaneous combination of two peptides developed by Novo Nordisk: cagrilintide, a…

Emerging Read →
B
Cognitive & Neuro
Cerebrolysin
Cerebrolysin

Cerebrolysin is a porcine brain-derived peptide preparation consisting of low-molecular-weight neuropeptides and free amino acids. Manufactu…

Emerging Read →
C
Hormone Optimization
CJC-1295 DAC
CJC-1295 With DAC (Drug Affinity Complex)

CJC-1295 with DAC is the original formulation of CJC-1295 that includes a Drug Affinity Complex (DAC) — a maleimidopropionic acid linker tha…

Theoretical Read →
D
Cognitive & Neuro
Dihexa
Dihexa (PNB-0408)

Dihexa (PNB-0408; chemically N-hexanoic-Tyr-Ile-(6) aminohexanoic amide) is an orally active, blood-brain-barrier-permeable oligopeptide der…

No human data Read →
C
Cognitive & Neuro
DSIP
Delta Sleep-Inducing Peptide

DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first isolated from rabbit br…

Theoretical Read →
A
Weight Management
Dulaglutide
Dulaglutide (Trulicity)

Dulaglutide is a once-weekly injectable glucagon-like peptide-1 (GLP-1) receptor agonist, FDA-approved as Trulicity for type 2 diabetes in a…

Strong Read →
C
Longevity & Anti-Aging
Epitalon
Epitalon (Epithalon/Epithalone)

Epitalon (Ala-Glu-Asp-Gly) is a synthetic tetrapeptide based on epithalamin, a peptide extract from the pineal gland. Developed by Russian g…

Theoretical Read →
D
Metabolic & Body Composition
Follistatin
Follistatin (FST-344)

Follistatin (FST-344, also written FS344) is a naturally occurring secreted glycoprotein that binds and neutralizes members of the TGF-beta …

No human data Read →
C
Longevity & Anti-Aging
FOXO4
Forkhead Box O4

FOXO4 (Forkhead Box O4) is an endogenous transcription factor, not a therapeutic peptide itself. It belongs to the FOXO family of transcript…

Theoretical Read →
D
Longevity & Anti-Aging
FOXO4-DRI
FOXO4-D-Retro-Inverso Peptide

FOXO4-DRI is a D-retro-inverso peptide designed to disrupt the interaction between FOXO4 and p53 in senescent cells. Developed by Peter de K…

No human data Read →
B
Metabolic & Body Composition
GDF-8 / Myostatin
Growth Differentiation Factor 8 (Myostatin)

GDF-8, commonly known as myostatin, is an endogenous member of the TGF-beta superfamily that acts as a negative regulator of skeletal muscle…

Emerging Read →
B
Skin & Hair
GHK-Cu
GHK-Cu (Copper Peptide GHK-Cu)

GHK-Cu is a naturally occurring copper-binding tripeptide (Gly-His-Lys) first isolated from human plasma in 1973 by Loren Pickart. It is pre…

Emerging Read →
B
Hormone Optimization
GHRP-2
GHRP-2 Acetate (Growth Hormone Releasing Peptide-2)

GHRP-2 is a synthetic hexapeptide that acts as a potent growth hormone secretagogue, stimulating the pituitary gland to release growth hormo…

Emerging Read →
B
Hormone Optimization
GHRP-6
GHRP-6 Acetate (Growth Hormone Releasing Peptide-6)

GHRP-6 is a synthetic hexapeptide and one of the earliest discovered growth hormone secretagogues. It stimulates GH release from the pituita…

Emerging Read →
A
Longevity & Anti-Aging
Glutathione
Glutathione (L-Glutathione / GSH)

Glutathione is a tripeptide (glutamate-cysteine-glycine) that is the body's most abundant and important intracellular antioxidant. It is pro…

Strong Read →
A
Hormone Optimization
HCG
HCG (Human Chorionic Gonadotropin)

Human chorionic gonadotropin (HCG) is a glycoprotein hormone naturally produced by the placenta during pregnancy. Structurally, it shares a …

Strong Read →
B
Hormone Optimization
Hexarelin
Hexarelin (Examorelin)

Hexarelin (also called examorelin) is a synthetic six-amino-acid peptide in the growth-hormone-releasing peptide (GHRP) family of growth hor…

Emerging Read →
A
Hormone Optimization
HMG
HMG (Human Menopausal Gonadotropin)

Human menopausal gonadotropin (HMG) is a purified preparation containing both follicle-stimulating hormone (FSH) and luteinizing hormone (LH…

Strong Read →
C
Longevity & Anti-Aging
Humanin
Humanin

Humanin is a 24-amino-acid mitochondrial-derived peptide (MDP), meaning it is encoded by a short open reading frame within the mitochondrial…

Theoretical Read →
B
Metabolic & Body Composition
IGF-1 LR3
IGF-1 LR3 (Long Arginine 3 Insulin-like Growth Factor-1)

IGF-1 LR3 is a synthetic, modified version of insulin-like growth factor-1 (IGF-1). The modification — substitution of arginine at position …

Emerging Read →
C
Hormone Optimization
Ipamorelin
Ipamorelin Acetate

Ipamorelin is a synthetic pentapeptide growth hormone secretagogue that selectively stimulates GH release from the pituitary gland. It is co…

Theoretical Read →
B
Hormone Optimization
Kisspeptin-10
Kisspeptin-10

Kisspeptin-10 is the biologically active decapeptide fragment of the kisspeptin family, which are endogenous neuropeptides encoded by the KI…

Emerging Read →
C
Gut & Inflammation
KPV
KPV (Lys-Pro-Val, alpha-MSH Fragment 11-13)

KPV is a naturally occurring tripeptide (Lysine-Proline-Valine) derived from the C-terminal end of alpha-melanocyte-stimulating hormone (alp…

Theoretical Read →
A
Metabolic & Body Composition
L-Carnitine
L-Carnitine

L-Carnitine is a naturally occurring amino acid derivative synthesized from lysine and methionine, primarily in the liver and kidneys. Its p…

Strong Read →
B
Gut & Inflammation
Larazotide
Larazotide (AT-1001)

Larazotide (also called larazotide acetate or AT-1001) is an oral eight-amino-acid peptide that acts as a "tight-junction regulator" in the …

Emerging Read →
B
Weight Management
Lipo-C
Lipo-C (Lipotropic Injection)

Lipo-C is a compounded lipotropic injection containing a combination of methionine, inositol, choline (MIC), and typically vitamin B12 (cyan…

Emerging Read →
A
Weight Management
Liraglutide
Liraglutide (Saxenda / Victoza)

Liraglutide is a once-daily injectable glucagon-like peptide-1 (GLP-1) receptor agonist, FDA-approved as Victoza for type 2 diabetes and as …

Strong Read →
B
Immune Support
LL-37
LL-37 (Human Cathelicidin Antimicrobial Peptide)

LL-37 is the only cathelicidin-derived antimicrobial peptide found in humans. It is a 37-amino-acid peptide (beginning with two leucines, he…

Emerging Read →
B
Weight Management
Mazdutide
Mazdutide (LY3305677 / IBI362)

Mazdutide is a novel dual GLP-1 and glucagon receptor agonist developed by Innovent Biologics (in partnership with Eli Lilly). It is designe…

Emerging Read →
A
Skin & Hair
Melanotan 1
Melanotan 1 (Afamelanotide)

Afamelanotide (formerly Melanotan 1, marketed as Scenesse) is a synthetic analogue of alpha-melanocyte-stimulating hormone (alpha-MSH) that …

Strong Read →
B
Sexual Health
Melanotan 2
Melanotan II

Melanotan II is a synthetic cyclic peptide analogue of alpha-melanocyte-stimulating hormone (alpha-MSH) that acts as a non-selective melanoc…

Emerging Read →
A
Longevity & Anti-Aging
Melatonin
Melatonin (N-acetyl-5-methoxytryptamine)

Melatonin is an endogenous hormone produced primarily by the pineal gland in response to darkness, serving as the body's master circadian rh…

Strong Read →
B
Hormone Optimization
MK-677
MK-677 (Ibutamoren)
Not a peptide

MK-677 (ibutamoren, originally coded MK-0677 by Merck) is an orally active growth hormone secretagogue that mimics the gut hormone ghrelin. …

Emerging Read →
C
Hormone Optimization
Mod GRF 1-29
CJC-1295 Without DAC (Modified GRF 1-29)

CJC-1295 without DAC, also known as Modified GRF (1-29) or tesamorelin-related analog, is a synthetic analog of growth hormone-releasing hor…

Theoretical Read →
B
Longevity & Anti-Aging
MOTS-c
MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA Type-c)

MOTS-c is a mitochondrial-derived peptide (MDP) encoded within the 12S rRNA gene of the mitochondrial genome. Discovered in 2015 by Changhan…

Emerging Read →
B
Longevity & Anti-Aging
NAD+
NAD+ (Nicotinamide Adenine Dinucleotide)

NAD+ is a critical coenzyme found in every living cell, essential for hundreds of metabolic reactions including energy production, DNA repai…

Emerging Read →
A
Weight Management
Orforglipron
Orforglipron (Foundayo)
Not a peptide

Orforglipron is an important point of clarification for this library: it is NOT a peptide. It is an orally administered, small-molecule (non…

Strong Read →
A
Hormone Optimization
Oxytocin
Oxytocin

Oxytocin is a nine-amino-acid neuropeptide produced in the hypothalamus and released by the posterior pituitary gland. Often called the 'bon…

Strong Read →
D
Cognitive & Neuro
P21
P21 (CNTF-Derived Peptide)

P21 is a small synthetic peptide derived from the active region of ciliary neurotrophic factor (CNTF). It was designed to mimic CNTF's neuro…

No human data Read →
D
Cognitive & Neuro
PE-22-28
PE-22-28 (Spadin Analogue)

PE-22-28 is a synthetic peptide derived from spadin, a natural peptide that inhibits the TREK-1 potassium channel. TREK-1 inhibition has bee…

No human data Read →
C
Recovery & Healing
PEG-MGF
PEG-MGF (PEGylated Mechano Growth Factor)

PEG-MGF is a PEGylated (polyethylene glycol-modified) form of mechano growth factor, a splice variant of IGF-1 (insulin-like growth factor 1…

Theoretical Read →
C
Cognitive & Neuro
Pinealon
Pinealon (EDR Peptide)

Pinealon is a synthetic tripeptide (Glu-Asp-Arg, or EDR) developed by Russian gerontologist Vladimir Khavinson as part of his bioregulatory …

Theoretical Read →
A
Sexual Health
PT-141 / Bremelanotide
PT-141 (Bremelanotide)

Bremelanotide (brand name Vyleesi) is a melanocortin receptor agonist FDA-approved in June 2019 for the treatment of hypoactive sexual desir…

Strong Read →
B
Weight Management
Retatrutide
Retatrutide (LY3437943)

Retatrutide is an investigational once-weekly injectable triple agonist of the glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotr…

Emerging Read →
B
Cognitive & Neuro
Selank
Selank (TP-7)

Selank is a synthetic peptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. It is a synthetic analogu…

Emerging Read →
A
Weight Management
Semaglutide
Semaglutide (Ozempic / Wegovy / Rybelsus)

Semaglutide is a GLP-1 receptor agonist approved by the FDA in multiple formulations: Ozempic (injectable, T2D), Wegovy (injectable, obesity…

Strong Read →
B
Cognitive & Neuro
Semax
Semax (ACTH 4-10 Analogue)

Semax is a synthetic peptide analogue of ACTH (adrenocorticotropic hormone) fragment 4-10 with an added Pro-Gly-Pro C-terminal tripeptide fo…

Emerging Read →
B
Hormone Optimization
Sermorelin
Sermorelin Acetate

Sermorelin is a synthetic peptide consisting of the first 29 amino acids of the 44-amino-acid growth hormone-releasing hormone (GHRH). It wa…

Emerging Read →
D
Metabolic & Body Composition
SLU-PP-332
SLU-PP-332

SLU-PP-332 is a small molecule agonist of estrogen-related receptors (ERRs), particularly ERRalpha, ERRbeta, and ERRgamma. Developed at Wash…

No human data Read →
C
Skin & Hair
SNAP-8
Acetyl Octapeptide-3 (SNAP-8)

SNAP-8 is a synthetic octapeptide cosmetic ingredient designed to reduce the appearance of expression lines and wrinkles by modulating neuro…

Theoretical Read →
B
Longevity & Anti-Aging
SS-31
Elamipretide (SS-31)

SS-31 (Elamipretide) is a mitochondria-targeted tetrapeptide that selectively concentrates in the inner mitochondrial membrane where it inte…

Emerging Read →
B
Weight Management
Survodutide
Survodutide (BI 456906)

Survodutide is an investigational dual agonist of the glucagon-like peptide-1 (GLP-1) receptor and the glucagon receptor, developed by Boehr…

Emerging Read →
B
Recovery & Healing
TB-500
TB-500 (Thymosin Beta-4 Fragment)

TB-500 is a synthetic peptide fragment corresponding to amino acids 17–23 of Thymosin Beta-4 (Tβ4), a naturally occurring 43-amino acid prot…

Emerging Read →
A
Hormone Optimization
Tesamorelin
Tesamorelin (Egrifta)

Tesamorelin is a synthetic analog of growth hormone-releasing hormone (GHRH) that is FDA-approved for the treatment of HIV-associated lipody…

Strong Read →
D
Longevity & Anti-Aging
Testagen
Testagen (Khavinson Tetrapeptide)

Testagen is a synthetic tetrapeptide bioregulator (Lys-Glu-Asp-Gly / KEDG) from the group of Russian researcher Vladimir Khavinson, marketed…

No human data Read →
B
Immune Support
Thymalin
Thymalin (Thymic Bioregulator Peptide Complex)

Thymalin is a polypeptide complex extracted from bovine thymus gland tissue, developed by Vladimir Khavinson and colleagues in the Soviet Un…

Emerging Read →
A
Immune Support
Thymosin Alpha-1
Thymosin Alpha-1 (Zadaxin)

Thymosin Alpha-1 (Tα1) is a 28-amino acid peptide originally isolated from thymosin fraction 5 of bovine thymus by Allan Goldstein in the 19…

Strong Read →
A
Weight Management
Tirzepatide
Tirzepatide (Mounjaro / Zepbound)

Tirzepatide is a once-weekly injectable dual agonist of the glucose-dependent insulinotropic polypeptide (GIP) receptor and glucagon-like pe…

Strong Read →
D
Immune Support
Vilon
Vilon (Lys-Glu Dipeptide Bioregulator)

Vilon is a synthetic dipeptide (Lys-Glu) developed by Vladimir Khavinson as a bioregulator peptide purported to derive from bone marrow and …

No human data Read →
B
Gut & Inflammation
VIP
Vasoactive Intestinal Peptide (VIP)

Vasoactive Intestinal Peptide (VIP) is a 28-amino acid neuropeptide naturally produced throughout the nervous system, gut, and immune tissue…

Emerging Read →