Research peptides and their lab data
118 research peptides tracked across 1,081 shops. Each profile shows the compound's independent lab tests — purity, measured vs labelled amount, endotoxin — with its prices, the shops that list it and the research behind it.
Peptides
118
92 with lab tests
Lab tests on file
14,123
independent · HPLC
Average purity
99.50%
across all tests
Shops tracked
1,081
SortAll shown
Browse by category
All 118 peptides
| Peptide | Mechanism | Avg purity | Tests | Shops |
|---|---|---|---|---|
| RetatrutideWeight loss & metabolic | Investigational triple-agonist peptide (GLP-1/GIP/glucagon) developed by Eli Lilly, researched for metabolic regulation, weight management, and glucose control. | 99.7% | 1,473 | 444 |
| TirzepatideWeight loss & metabolic | Dual GIP/GLP-1 receptor agonist developed by Eli Lilly, approved for type 2 diabetes (Mounjaro®) and chronic weight management (Zepbound®). | 99.8% | 1,075 | 392 |
| BPC-157Tissue repair & healing | Synthetic 15-amino acid peptide derived from a gastric protein, researched for tissue repair, gut healing, tendon recovery, and anti-inflammatory effects. | 99.2% | 923 | 515 |
| GHK-CuSkin, anti-aging & cosmetic | Copper-binding tripeptide researched for skin regeneration, wound healing, collagen stimulation, and anti-aging effects. | 99.7% | 879 | 528 |
| MOTS-CWeight loss & metabolic | Mitochondrial-derived peptide researched for metabolic regulation, exercise mimicry, insulin sensitivity, and longevity. | 99.5% | 630 | 502 |
| TesamorelinGrowth hormone | Synthetic growth hormone-releasing hormone (GHRH) analog, FDA-approved as Egrifta® for HIV-associated lipodystrophy. Researched for visceral fat reduction. | 99.4% | 589 | 461 |
| SemaglutideWeight loss & metabolic | GLP-1 receptor agonist for blood sugar regulation and weight management. Sold as Ozempic®, Wegovy®, and Rybelsus®. | 99.7% | 464 | 315 |
| IpamorelinGrowth hormone | Selective growth hormone secretagogue (GHS) that stimulates pulsatile GH release with minimal effects on cortisol and prolactin. | 99.7% | 459 | 456 |
| TB-500Tissue repair & healing | Synthetic fragment of Thymosin Beta-4 researched for tissue repair, inflammation reduction, wound healing, and cardiac tissue recovery. | 99.4% | 440 | 476 |
| NAD+Immune support & longevityNot a peptide | Nicotinamide adenine dinucleotide, a coenzyme essential for cellular energy metabolism, DNA repair, and sirtuin activation. Researched for aging and metabolic health. | 99.1% | 381 | 498 |
| SELANKCognitive enhancement & neuroprotection | Synthetic heptapeptide derived from tuftsin, researched for anxiolytic effects, immune modulation, and cognitive enhancement without sedation. | 99.6% | 343 | 451 |
| SEMAXCognitive enhancement & neuroprotection | Synthetic heptapeptide derived from ACTH(4-10), researched for neuroprotection, cognitive enhancement, and brain injury recovery. Approved in Russia as a nootropic. | 99.5% | 324 | 449 |
| CJC-1295 without DACGrowth hormone | Modified growth hormone-releasing hormone (GHRH) analog for pulsatile GH release. Also known as Mod GRF (1-29). Shorter half-life than the DAC version. | 99.5% | 302 | 348 |
| CagrilintideWeight loss & metabolic | Long-acting amylin receptor agonist developed by Novo Nordisk, researched for appetite regulation and weight management alongside semaglutide (CagriSema). | 99.6% | 289 | 315 |
| KPVImmune support & longevity | Anti-inflammatory tripeptide from α-MSH researched for gut health, skin barrier repair, and NF-κB inhibition. | 99.6% | 289 | 430 |
| EPITHALONImmune support & longevity | Synthetic tetrapeptide (Ala-Glu-Asp-Gly) researched for telomerase activation, telomere elongation, and potential anti-aging effects. | 99.4% | 285 | 416 |
| Melanotan II (MT-2)Skin, anti-aging & cosmetic | Synthetic alpha-MSH analog researched for skin pigmentation (tanning), photoprotection, and sexual function enhancement. | 99.6% | 284 | 410 |
| PT-141Libido & sexual wellness | Melanocortin receptor agonist (bremelanotide) FDA-approved as Vyleesi® for hypoactive sexual desire disorder in premenopausal women. | 99.7% | 280 | 429 |
| SS-31 (Elamipretide)Immune support & longevity | Mitochondria-targeted tetrapeptide researched for restoring cellular energy production, reducing oxidative stress, and treating mitochondrial dysfunction. | 99.7% | 254 | 344 |
| DSIP (Delta Sleep-inducing Peptide)Cognitive enhancement & neuroprotection | Nine-amino acid neuropeptide researched for sleep regulation, stress adaptation, and normalization of disturbed sleep architecture. | 99.3% | 252 | 400 |
| Thymosin-Alpha 1 (A1)Immune support & longevity | Thymic peptide researched for immune modulation, T-cell activation, and antiviral response. Approved in over 35 countries as Zadaxin® for hepatitis B. | 99.5% | 244 | 357 |
| SermorelinGrowth hormone | Synthetic 29-amino acid GHRH analog, the first FDA-approved GH-releasing peptide (Geref®). Stimulates natural pulsatile GH secretion from the pituitary. | 99.4% | 233 | 332 |
| 5-Amino-1MQWeight loss & metabolic | Small-molecule NNMT inhibitor researched for fat cell metabolism, NAD+ salvage pathway regulation, and metabolic health. | 99.6% | 191 | 372 |
| KisspeptinLibido & sexual wellness | Neuropeptide encoded by the KISS1 gene, researched for reproductive hormone regulation, puberty onset, and fertility treatment. | 99.4% | 176 | 362 |
| AOD-9604Weight loss & metabolic | Synthetic analog of the growth-hormone 176–191 lipolytic region — developed by Metabolic Pharmaceuticals and the version advanced into human trials. A distinct compound from HGH Fragment 176–191, not an alias. | 99.3% | 154 | 301 |
| Melanotan I (MT-1)Skin, anti-aging & cosmetic | Linear alpha-MSH analog (afamelanotide) approved in the EU as Scenesse® for erythropoietic protoporphyria. Researched for photoprotective tanning. | 99.7% | 153 | 264 |
| WolverineBlends & stacksBlend · 2-peptide | Two-peptide tissue-repair blend — BPC-157 and TB-500 in a 1:1 ratio. | 99.4% | 147 | 355 |
| GlutathioneImmune support & longevity | Research peptide tracked on Peptigrity. | 99.5% | 146 | 354 |
| IGF-1 LR3Growth hormone | Modified insulin-like growth factor-1 with extended half-life (20+ hours). Researched for muscle growth, recovery, and cell proliferation. | 98.6% | 146 | 325 |
| CJC-1295 with DACGrowth hormone | GHRH analog with a Drug Affinity Complex that extends half-life to 6-8 days, producing sustained GH elevation from a single weekly injection. | 99.2% | 119 | 277 |
| KLOWBlends & stacksBlend · 4-peptide | Four-peptide research blend — GHK-Cu, BPC-157, TB-500 and KPV in one vial. | 99.7% | 111 | 365 |
| CJC-1295 + IpamorelinBlends & stacksBlend · 2-peptide | GH-secretagogue blend — CJC-1295 (no-DAC) and Ipamorelin, typically 5 mg each. | 99.7% | 107 | 331 |
| ARA-290Immune support & longevity | Synthetic 11-amino acid peptide derived from erythropoietin (EPO), researched for neuroprotection, tissue repair, and anti-inflammatory effects without erythropoiesis. | 98.7% | 100 | 270 |
| GLOWBlends & stacksBlend · 3-peptide | Three-peptide research blend — GHK-Cu, BPC-157 and TB-500; formula varies by vendor. | 99.6% | 95 | 344 |
| SNAP-8Skin, anti-aging & cosmetic | Synthetic octapeptide researched for reducing wrinkle depth by modulating SNARE complex formation, mimicking a topical alternative to botulinum toxin. | 99.3% | 86 | 242 |
| VIP (Vasoactive Intestinal Peptide)Immune support & longevity | 28-amino-acid neuropeptide researched for immune regulation, neuroprotection, and circadian rhythm modulation. | 99.4% | 82 | 248 |
| PinealonBioregulators | Bioregulatory tripeptide targeting the pineal gland, researched for neuroprotection, cognitive preservation, and melatonin regulation. | 99.5% | 76 | 251 |
| LL-37Immune support & longevity | The only human cathelicidin antimicrobial peptide with broad-spectrum activity against bacteria, viruses, and fungi. | 99.4% | 67 | 246 |
| OxytocinCognitive enhancement & neuroprotection | Research peptide tracked on Peptigrity. | 99.1% | 66 | 245 |
| HGH Fragment 176–191Weight loss & metabolic | Synthetic fragment of human growth hormone (amino acids 176-191), researched specifically for lipolysis and fat metabolism without GH's proliferative effects. | 99.0% | 63 | 155 |
| FOXO4-DRIImmune support & longevity | Research peptide tracked on Peptigrity. | 99.4% | 62 | 186 |
| CartalaxBioregulators | Research peptide tracked on Peptigrity. | 99.6% | 57 | 201 |
| GHRP-6Growth hormone | Synthetic hexapeptide GH secretagogue that strongly stimulates growth hormone release and appetite via the ghrelin receptor. | 99.3% | 48 | 215 |
| THYMALINBioregulators | Thymic polypeptide complex researched for immune reconstitution and anti-aging effects. Developed in Russia by Vladimir Khavinson. | 97.9% | 47 | 169 |
| Adamax (Davunetide/NAP)Cognitive enhancement & neuroprotection | Neuroprotective octapeptide from ADNP researched for microtubule stabilization and cognitive preservation. | 99.6% | 44 | 205 |
| SurvodutideWeight loss & metabolic | Dual GLP-1/glucagon receptor agonist developed by Boehringer Ingelheim, in Phase 3 trials for obesity and MASH (metabolic-associated steatohepatitis). | 99.6% | 40 | 138 |
| GHRP-2Growth hormone | Synthetic hexapeptide growth hormone secretagogue that stimulates GH release via the ghrelin receptor. Stronger GH response than GHRP-6 but with moderate appetite effects. | 99.2% | 39 | 198 |
| N-Acetyl Semax AmidateCognitive enhancement & neuroprotection | Acetylated/amidated Semax analog (Ac-MEHFPGP-NH₂). Longer half-life than plain Semax. Distinct compound, not an alias. | 99.7% | 37 | 129 |
| Tesamorelin + IpamorelinBlends & stacksBlend · 2-peptide | GH-secretagogue blend — Tesamorelin (the only FDA-approved ingredient across these blends) and Ipamorelin, typically 10:3. | 99.7% | 34 | 125 |
| AHK-CuSkin, anti-aging & cosmetic | Synthetic copper peptide researched for hair follicle stimulation, VEGF angiogenesis, and collagen production. | 97.8% | 33 | 192 |
| MazdutideWeight loss & metabolic | Dual GLP-1/glucagon receptor agonist developed by Innovent Biologics, in clinical trials for obesity and metabolic liver disease. | 99.5% | 32 | 138 |
| PEG MGFGrowth hormone | PEGylated mechano growth factor — a modified IGF-1 splice variant with extended half-life, researched for muscle repair and satellite cell activation. | 99.4% | 29 | 148 |
| HexarelinGrowth hormone | Synthetic hexapeptide GH secretagogue with the strongest growth hormone release of any GHRP. Also researched for cardiac tissue protection. | 99.0% | 26 | 167 |
| TestagenBioregulators | Research peptide tracked on Peptigrity. | 99.7% | 23 | 134 |
| VesugenBioregulators | Research peptide tracked on Peptigrity. | 99.7% | 23 | 135 |
| VilonBioregulators | Research peptide tracked on Peptigrity. | 99.7% | 19 | 132 |
| CardiogenBioregulators | Research peptide tracked on Peptigrity. | 99.4% | 18 | 146 |
| Brain BlendBlends & stacksBlend · 2-peptide | A cognitive research stack pairing Selank (an anxiolytic regulatory peptide) with Semax (a nootropic, neuroprotective peptide) — two Russian-developed peptides combined to pair calm with focus. | 99.7% | 17 | 92 |
| AicarWeight loss & metabolic | AMPK activator (aminoimidazole carboxamide ribonucleotide) researched as an exercise mimetic for endurance, fat oxidation, and metabolic regulation. | 99.6% | 15 | 138 |
| PNC-27Immune support & longevity | Anticancer research peptide that selectively targets membrane-associated HDM-2 on tumor cells, inducing membranolysis without affecting normal cells. | 99.6% | 15 | 132 |
| ProstamaxBioregulators | Research peptide tracked on Peptigrity. | 99.5% | 14 | 126 |
| GonadorelinUncategorised | Research peptide tracked on Peptigrity. | 99.6% | 13 | 126 |
| CagriSemaBlends & stacksBlend · 2-peptide | Novo Nordisk's fixed-dose combination of the amylin analog cagrilintide and the GLP-1 receptor agonist semaglutide — a once-weekly obesity injection that pairs two complementary appetite pathways, currently under FDA review. | 99.7% | 12 | 55 |
| PE-22-28Cognitive enhancement & neuroprotection | A seven-amino-acid analog of the natural peptide spadin — a highly selective and potent blocker of the TREK-1 potassium channel, studied in animal models for fast-onset antidepressant-like effects and enhanced hippocampal neurogenesis. | 99.7% | 12 | 85 |
| P21 (P021)Cognitive enhancement & neuroprotection | Research peptide tracked on Peptigrity. | 99.5% | 10 | 136 |
| OvagenBioregulators | Research peptide tracked on Peptigrity. | 97.2% | 9 | 124 |
| PancragenBioregulators | Research peptide tracked on Peptigrity. | 99.5% | 8 | 117 |
| FollistatinTissue repair & healing | Activin-binding glycoprotein that inhibits myostatin, researched for promoting muscle growth, reducing fibrosis, and supporting tissue remodeling. | 99.0% | 7 | 97 |
| SLU-PP-332Weight loss & metabolic | Investigational small-molecule pan-ERR agonist (ERRα/β/γ) developed in the Burris laboratory, studied in animal models as an "exercise mimetic" for mitochondrial function, fat oxidation, and endurance capacity. | 99.8% | 7 | 182 |
| CrystagenBioregulators | Research peptide tracked on Peptigrity. | 99.4% | 6 | 104 |
| Mitochondrial BlendBlends & stacksBlend · 3-peptide | A metabolic and longevity-oriented stack combining 5-Amino-1MQ, MOTS-c, and NAD⁺ — three compounds aimed at cellular energy metabolism from different angles. | 99.7% | 6 | 17 |
| CerebrolysinCognitive enhancement & neuroprotection | A neurotrophic peptide preparation from porcine brain — a mixture of low-molecular-weight peptides and free amino acids mimicking the body's own neurotrophic factors, used for stroke, TBI, and dementia in many countries (though not FDA-approved). | 99.7% | 5 | 65 |
| ThymulinImmune support & longevity | A zinc-dependent thymic nonapeptide hormone (formerly "FTS") produced by thymic epithelial cells, researched for T-cell differentiation, immune modulation, and age-related immune decline. | 99.2% | 5 | 24 |
| AdipotideWeight loss & metabolic | Peptidomimetic that targets PROHIBITIN on the vasculature of white adipose tissue, causing apoptosis of fat-supplying blood vessels and fat cell death. | 99.7% | 4 | 135 |
| CortagenBioregulators | A synthetic Khavinson tetrapeptide (Ala-Glu-Asp-Pro) derived from the brain-cortex extract cortexin, researched as a central-nervous-system bioregulator for neuroprotection and cognitive-aging models. | 99.5% | 4 | 53 |
| IGF-1 DESGrowth hormone | Truncated IGF-1 variant missing the first 3 amino acids, resulting in reduced IGFBP binding and enhanced local anabolic potency. | 99.0% | 4 | 104 |
| TesofensineWeight loss & metabolicNot a peptide | Investigational small-molecule triple monoamine reuptake inhibitor (serotonin, norepinephrine, dopamine) originally developed by NeuroSearch, researched for appetite suppression and weight management. | 99.3% | 4 | 64 |
| ACE-031Tissue repair & healingNot a peptide | A soluble activin receptor type IIB–Fc fusion protein (a myostatin and activin "ligand trap") developed by Acceleron Pharma to build muscle in muscular dystrophy — whose clinical development was discontinued after vascular safety events. | 99.7% | 2 | 47 |
| BPC-157 + TB-500 + KPVBlends & stacksBlend · 3-peptide | A widely discussed tissue-repair research stack combining BPC-157 (gastric repair peptide), TB-500 (actin-regulating repair peptide), and KPV (an anti-inflammatory tripeptide) — three complementary angles on healing and inflammation. | 99.8% | 2 | 36 |
| CJC-1295 + GHRP-2Blends & stacksBlend · 2-peptide | A growth-hormone secretagogue stack pairing the GHRH analog CJC-1295 with the potent ghrelin-mimetic GHRP-2 — two receptors, one amplified GH pulse. | 98.7% | 2 | 18 |
| CJC-1295 + GHRP-6Blends & stacksBlend · 2-peptide | A GH secretagogue stack pairing the GHRH analog CJC-1295 with GHRP-6, the ghrelin-mimetic best known for strongly stimulating appetite. | 99.6% | 2 | 22 |
| Follistatin-344Tissue repair & healingNot a peptide | The 344-amino-acid precursor isoform of follistatin — a high-affinity myostatin and activin neutralizer researched to release the body's brake on muscle growth, and the isoform most used in injectable and gene-therapy research. | 98.7% | 2 | 41 |
| HGH Fragment 176-191 + CJC-1295 + IpamorelinBlends & stacksBlend · 3-peptide | A stack pairing the lipolytic HGH Fragment 176-191 with a clean GH secretagogue base — the GHRH analog CJC-1295 plus the selective Ipamorelin. | 99.4% | 2 | 6 |
| HumaninImmune support & longevity | A 24-amino-acid mitochondrial-derived peptide — the first of its class to be discovered — researched for anti-apoptotic cytoprotection, neuroprotection, and insulin sensitivity. | 99.5% | 2 | 40 |
| Tesamorelin + CJC-1295 + IpamorelinBlends & stacksBlend · 3-peptide | A triple GH stack combining two GHRH analogs — Tesamorelin (a stabilized GHRH, FDA-approved standalone for HIV-associated lipodystrophy) and CJC-1295 — with the selective GHRP Ipamorelin. | 99.7% | 2 | 23 |
| ArgirelineSkin, anti-aging & cosmetic | A topical cosmetic hexapeptide often called "topical Botox" — it mimics the SNAP-25 protein to interfere with SNARE-complex assembly, modestly reducing the muscle contractions behind dynamic expression lines. | 99.8% | 1 | 13 |
| BPC-157 + KPVBlends & stacksBlend · 2-peptide | A two-part research stack pairing BPC-157 (gastric repair peptide) with KPV (an anti-inflammatory α-MSH tripeptide) — often discussed together for gut and tissue inflammation. | 99.5% | 1 | 24 |
| DihexaCognitive enhancement & neuroprotection | An angiotensin IV-derived peptidomimetic engineered for blood-brain-barrier penetration and oral activity, researched for its ability to potentiate hepatocyte growth factor (HGF)/c-Met signaling and drive hippocampal synapse formation. | 99.8% | 1 | 72 |
| EPO (Erythropoietin)Immune support & longevityNot a peptide | Glycoprotein hormone that stimulates red blood cell production (erythropoiesis). FDA-approved for anemia treatment. Known for endurance performance effects. | 99.5% | 1 | 86 |
| OrforglipronWeight loss & metabolicNot a peptide | The first non-peptide oral small-molecule GLP-1 receptor agonist approved for chronic weight management — a once-daily pill from Eli Lilly (discovered by Chugai), FDA-approved 1 April 2026 as Foundayo™. | 98.0% | 1 | 20 |
| Sermorelin + IpamorelinBlends & stacksBlend · 2-peptide | A "clean" GH secretagogue stack pairing the GHRH(1-29) analog Sermorelin with Ipamorelin — the most selective GHRP, with minimal cortisol, prolactin, or appetite effects. | 99.9% | 1 | 17 |
| Thymosin Beta-4Tissue repair & healing | The full 43-amino-acid endogenous peptide and the body's principal actin-sequestering molecule — the parent compound behind most tissue-repair, wound-healing, and cardiac research, and the full-length counterpart to the shorter TB-500 fragment. | 99.8% | 1 | 27 |
| No lab tests yet · 26 compoundsshown last in every sort | ||||
| AmycretinWeight loss & metabolic | Novo Nordisk's investigational, first-in-class unimolecular GLP-1 and amylin receptor co-agonist, in development in both oral and subcutaneous forms and in Phase 3 since Q1 2026. | No tests yet · | 0 | 3 |
| CJC-1295 + HexarelinBlends & stacksBlend · 2-peptide | A GH secretagogue stack pairing the GHRH analog CJC-1295 with Hexarelin — the most potent of the GHRPs, though the quickest to desensitize. | No tests yet · | 0 | 16 |
| CJC-1295 + Ipamorelin + GHRP-2Blends & stacksBlend · 3-peptide | A triple growth-hormone stack combining the GHRH analog CJC-1295 with two ghrelin-mimetics — the selective Ipamorelin and the potent GHRP-2. | No tests yet · | 0 | 12 |
| DanuglipronWeight loss & metabolicNot a peptide | Pfizer's oral small-molecule (non-peptide) GLP-1 receptor agonist — a once-promising obesity candidate whose development was discontinued after a hepatotoxicity signal. | No tests yet · | 0 | 2 |
| DulaglutideWeight loss & metabolic | A once-weekly GLP-1 receptor agonist built as an Fc-fusion protein, FDA-approved as Trulicity® for type 2 diabetes and cardiovascular risk reduction. | No tests yet · | 0 | 6 |
| EcnoglutideWeight loss & metabolic | A once-weekly, cAMP-biased GLP-1 receptor agonist developed by Sciwind Biosciences — the world's first approved biased GLP-1RA, cleared in China for type 2 diabetes and weight management (not FDA/EMA-approved). | No tests yet · | 0 | 3 |
| ExenatideWeight loss & metabolic | A 39-amino-acid GLP-1 receptor agonist and synthetic form of exendin-4 (originally from Gila monster venom) — the first-in-class incretin mimetic, FDA-approved as Byetta® and Bydureon®. | No tests yet · | 0 | 3 |
| FGLCognitive enhancement & neuroprotection | A 15-amino-acid peptide derived from the FG loop of the neural cell adhesion molecule (NCAM) — a mimetic that activates the fibroblast growth factor receptor (FGFR1) to promote synapse formation, neurogenesis, and memory in preclinical models. | No tests yet · | 0 | 5 |
| GDF-11Immune support & longevity | Growth differentiation factor 11 — a TGF-β-superfamily protein and close homologue of myostatin, studied as a circulating "rejuvenation factor" for heart, brain, and muscle aging, though its anti-aging role remains scientifically contested. | No tests yet · | 0 | 4 |
| LiraglutideWeight loss & metabolic | A once-daily GLP-1 receptor agonist, FDA-approved as Victoza® for type 2 diabetes and Saxenda® for chronic weight management — one of the most established incretin therapies. | No tests yet · | 0 | 7 |
| MatrixylSkin, anti-aging & cosmetic | A collagen-signaling "matrikine" peptide — a fragment of collagen linked to a fatty-acid chain for skin penetration — and the best-studied topical anti-aging peptide, with independent clinical data behind its wrinkle-softening claim. | No tests yet · | 0 | 17 |
| Matrixyl 3000Skin, anti-aging & cosmeticBlend · 2-peptide | Sederma's second-generation anti-aging peptide blend — pairing a collagen-signaling peptide (palmitoyl tripeptide-1) with an anti-inflammatory one (palmitoyl tetrapeptide-7) to address both collagen synthesis and its inflammatory breakdown. | No tests yet · | 0 | 4 |
| MGFTissue repair & healing | A splice variant of IGF-1 (IGF-1Ec) whose unique C-terminal E-peptide is produced locally in mechanically stressed or damaged muscle, where it activates satellite (muscle stem) cells as an early trigger of repair. | No tests yet · | 0 | 45 |
| MK-677Growth hormoneNot a peptide | Orally active, non-peptide ghrelin-receptor (GHSR-1a) agonist and growth hormone secretagogue developed by Merck, researched for sustained GH and IGF-1 elevation, body composition, bone density, and sleep. | No tests yet · | 0 | 62 |
| NoopeptCognitive enhancement & neuroprotection | A synthetic nootropic dipeptide (INN omberacetam) developed in Russia — a prodrug of the endogenous neuropeptide cycloprolylglycine that enhances cognition and neuroprotection at doses roughly 1,000× lower than piracetam. | No tests yet · | 0 | 21 |
| Palmitoyl Tetrapeptide-7Skin, anti-aging & cosmetic | An anti-inflammatory cosmetic peptide (trade name Rigin) derived from an antibody fragment — it suppresses the cytokine interleukin-6 to reduce the inflammation-driven collagen breakdown of "inflammaging", and is one of the two peptides in Matrixyl 3000. | No tests yet · | 0 | 4 |
| Palmitoyl Tripeptide-1Skin, anti-aging & cosmetic | A palmitoylated form of the GHK tripeptide — a collagen-signaling matrikine that tells fibroblasts to build collagen and fibronectin, and one of the two peptides in the Matrixyl 3000 blend. | No tests yet · | 0 | 10 |
| PemvidutideWeight loss & metabolic | Altimmune's investigational, balanced 1:1 GLP-1/glucagon dual receptor agonist, in Phase 2 development for obesity and MASH — with FDA Breakthrough Therapy designation for MASH. | No tests yet · | 0 | 2 |
| Pentadeca ArginateTissue repair & healing | The arginine-salt form of BPC-157 — the same 15-amino-acid gastric pentadecapeptide (GEPPPGKPADDAGLV), marketed as a more stable salt variant and researched for tissue repair, tendon and gut healing, and angiogenesis. | No tests yet · | 0 | 15 |
| PetrelintideWeight loss & metabolic | Zealand Pharma and Roche's investigational long-acting amylin analog for chronic weight management, advancing toward Phase 3 on the strength of double-digit weight loss with placebo-like tolerability. | No tests yet · | 0 | 3 |
| PramlintideWeight loss & metabolic | A synthetic analog of the pancreatic hormone amylin, FDA-approved as Symlin® as a mealtime adjunct to insulin — researched for glucose control, appetite suppression, and weight management. | No tests yet · | 0 | 2 |
| RetinalaminBioregulators | A retinal polypeptide bioregulator — a complex of water-soluble polypeptide fractions isolated from cattle retina — used as a retinoprotector in Russia for retinal and optic-nerve disorders, though it is not approved by the FDA or EMA. | No tests yet · | 0 | 6 |
| Sermorelin + GHRP-2Blends & stacksBlend · 2-peptide | A GH secretagogue stack pairing the GHRH(1-29) analog Sermorelin with the potent ghrelin-mimetic GHRP-2 — a classic amplitude-plus-frequency combination. | No tests yet · | 0 | 11 |
| Sermorelin + GHRP-6Blends & stacksBlend · 2-peptide | A GH secretagogue stack pairing the GHRH(1-29) analog Sermorelin with GHRP-6, the ghrelin-mimetic best known for stimulating appetite. | No tests yet · | 0 | 10 |
| Sermorelin + GHRP-6 + GHRP-2Blends & stacksBlend · 3-peptide | A triple GH stack pairing the GHRH analog Sermorelin with two ghrelin-mimetics — GHRP-6 (appetite-driving) and GHRP-2 (potent). | No tests yet · | 0 | 8 |
| VK2735Weight loss & metabolic | Viking Therapeutics' investigational dual GLP-1/GIP receptor agonist, in development in both oral and subcutaneous forms and in Phase 3 trials for obesity. | No tests yet · | 0 | 2 |
Questions about peptides
What are peptides?
Peptides are chains of 2 to 50 amino acids linked by peptide bonds. They function as signaling molecules for hormone regulation, immune response, tissue repair, and metabolic function.
How does Peptigrity track peptide purity?
Peptigrity averages the HPLC purity reported on independent third-party certificates of analysis — certificates that shops and labs publish, plus tests members submit — and checks each one before publishing. Every result has its own page, and the lab that ran it is named.
What purity percentage is considered acceptable?
There's no single cut-off. Pharmacopoeia standards are set compound by compound and cover more than HPLC purity, so a figure like 98% doesn't make a peptide “pharmaceutical grade” on its own. What the data shows: across the lab tests on file, 93.6% read 99% purity or higher. Purity alone doesn't confirm identity or amount — check the mass-spec identity result and the measured quantity against the label as well.
What is the difference between peptides and proteins?
The difference is chain length. Peptides consist of 2-50 amino acids. Proteins consist of 50 or more amino acids. Both are built from the same 20 standard amino acids. A few compounds in this list are proteins or small molecules; they're tagged.
Peptide missing from the library?
Request a new compound or submit lab test data.