peptide directory
44 peptides · anonymous reports from the underground
Healing & Recovery
- BPC-157Body protective compound derived from human gastric juice. Animal studies focus on tendon repair, joint healing, and gut tissue regeneration.
- GHK-Cu before & after reportsCopper-binding tripeptide naturally present in human plasma. Studied for its roles in wound healing and tissue remodeling.
- TB-500 side effects & reportsSynthetic fragment of thymosin beta-4, a protein found in blood platelets and wound fluid. Studied for its role in tissue repair signaling.
- KPVC-terminal tripeptide of alpha-MSH with anti-inflammatory properties. Research focuses on gut inflammation, Crohn's disease, and wound healing.
- Thymosin Alpha-1Naturally occurring thymic peptide involved in T-cell maturation and immune modulation. Used clinically for viral infections and immune deficiency.
- VIPVasoactive intestinal peptide with broad neuroendocrine functions. Studied for anti-inflammatory, immunomodulatory, and neuroprotective properties.
- Pentadeca ArginatePentadecapeptide salt of arginine developed as a non-scheduled alternative to BPC-157. Early community reports describe similar tissue healing and anti-inflammatory properties.
- Thymosin Beta-4Full-length thymic protein from which TB-500 is derived. Coordinates actin dynamics in tissue repair, wound healing, and cardiac regeneration; the intact parent molecule of the TB-500 fragment.
needs more reports
- AHK-CuSubmit yours
- ArgirelineSubmit yours
- EyelissSubmit yours
- LarazotideSubmit yours
- LeuphasylSubmit yours
- LL-37Submit yours
- MatrixylSubmit yours
- Palmitoyl Tetrapeptide-7Submit yours
- Palmitoyl Tripeptide-1Submit yours
- Palmitoyl Tripeptide-38Submit yours
- Prothymosin AlphaSubmit yours
- SNAP-8Submit yours
- SYN-AKESubmit yours
- SYN-COLLSubmit yours
- TeduglutideSubmit yours
- ThymulinSubmit yours
Growth & Performance
- TesamorelinGHRH analogue approved for HIV-associated lipodystrophy. Reduces visceral fat accumulation through sustained GH stimulation; available as Egrifta.
- ipamorelin side effects & reportsSelective growth hormone secretagogue often stacked with CJC-1295. Mimics ghrelin with a clean receptor profile and minimal off-target effects.
- CJC-1295 side effects & reportsSynthetic analogue of growth hormone-releasing hormone. Extends the half-life of endogenous GHRH through DAC technology.
- sermorelin side effects & reportsSynthetic analogue of the first 29 amino acids of endogenous GHRH. Used clinically to assess pituitary function and stimulate GH production.
- IGF-1 LR3 side effects & reportsLong-chain analogue of insulin-like growth factor 1 with extended half-life. Binds IGF-1 receptors to promote muscle protein synthesis and cellular growth.
- Follistatin 344Follistatin-344 splice variant that inhibits myostatin and activin signaling. Studied for muscle mass effects as an endogenous myostatin antagonist.
- PEG-MGFPegylated mechano growth factor with extended half-life versus native MGF. Sustains local muscle satellite cell activation for days after injection, enabling less frequent dosing.
- GHRP-6Growth hormone releasing peptide that acts on ghrelin receptors. Significantly stimulates growth hormone release and increases appetite.
- GHRP-2Synthetic hexapeptide GH secretagogue acting on ghrelin and CD36 receptors. More potent than GHRP-6 with strong appetite-stimulating effects.
- HexarelinPotent synthetic GH secretagogue acting on ghrelin receptors. Studied for growth hormone release and cardioprotective effects in research models.
- MGFMechano growth factor, an IGF-1 splice variant expressed in response to mechanical stress. Studied for muscle repair and satellite cell activation.
needs more reports
- GHRP-1Submit yours
- IGF-1 DESSubmit yours
- TabimorelinSubmit yours
Weight Loss & Metabolic
- RetatrutideTriple agonist at GIP, GLP-1, and glucagon receptors. Phase 3 trials show weight loss exceeding current approved GLP-1 medications.
- TirzepatideDual GIP and GLP-1 receptor agonist sold as Mounjaro and Zepbound. Approved for type 2 diabetes and obesity; weekly injectable.
- GLP-1Glucagon-like peptide-1 receptor agonist class used for weight management and metabolic health. Includes semaglutide, tirzepatide, liraglutide, and retatrutide.
- SemaglutideGLP-1 receptor agonist sold as Ozempic and Wegovy. Approved for type 2 diabetes and weight management; available as weekly injectable or oral tablet.
- CagrilintideLong-acting amylin analogue in clinical development by Novo Nordisk. Combined with semaglutide as CagriSema; produces additive weight loss beyond GLP-1 receptor engagement alone.
- LiraglutideGLP-1 receptor agonist approved as Victoza for type 2 diabetes and Saxenda for weight management. Daily injectable with long-term safety data.
- AOD-9604Synthetic analogue of the C-terminal fragment of human growth hormone. Studied for lipolytic effects without growth-promoting activity.
needs more reports
- CotadutideSubmit yours
- DulaglutideSubmit yours
- ExenatideSubmit yours
- PemvidutideSubmit yours
- PramlintideSubmit yours
- SurvodutideSubmit yours
Longevity & Anti-Aging
- SS-31 peptide side effects & reportsMitochondria-targeting peptide that concentrates in the inner mitochondrial membrane. Studied for protection against oxidative stress and aging.
- NAD+Coenzyme central to cellular energy metabolism and DNA repair. Precursor supplementation studied for effects on metabolic and aging pathways.
- EpitalonSynthetic tetrapeptide analogue of epithalamin. Studied for effects on telomere length and circadian regulation in aging research.
- DSIP peptide side effects & reportsDelta sleep-inducing peptide first isolated from rabbit brain during natural sleep. Studied for effects on sleep architecture and stress response.
- GlutathioneMaster antioxidant tripeptide produced endogenously in every cell. IV and liposomal forms studied for detoxification, immune function, and oxidative stress.
- MK-677Ibutamoren — orally active growth hormone secretagogue that mimics ghrelin. Stimulates pituitary GH and IGF-1 release without injection.
needs more reports
- BonomarlotSubmit yours
- CarnosineSubmit yours
- ChelohartSubmit yours
- ColivelinSubmit yours
- FOXO4-DRISubmit yours
- GlandokortSubmit yours
- GotratixSubmit yours
- HumaninSubmit yours
- KlothoSubmit yours
- LibidonSubmit yours
- OvagenSubmit yours
- SigumirSubmit yours
- SuprefortSubmit yours
- TaxorestSubmit yours
- ThymalinSubmit yours
- ThyreogenSubmit yours
- VentfortSubmit yours
- VisolutenSubmit yours
- ZhenolutenSubmit yours
Cognitive
- SemaxSynthetic heptapeptide derived from ACTH. Studied in Russia for cognitive enhancement and neuroprotection; nasal administration is common.
- selank side effects & reportsSynthetic analogue of the endogenous tuftsin peptide. Studied for anxiolytic and nootropic properties without sedation.
- PinealonSynthetic tripeptide from Russian longevity research developed alongside Epitalon. Studied for neuroprotective and circadian-regulating properties.
- DihexaSynthetic peptide that potentiates HGF/MET signaling. Preclinical research explores cognitive enhancement in neurodegeneration models.
- P21Synthetic peptide derived from CNTF. Preclinical research explores neurogenic and cognitive-enhancing effects through hippocampal neurogenesis pathways.
needs more reports
- CerebrolysinSubmit yours
- CerlutenSubmit yours
- CortexinSubmit yours
- CortistatinSubmit yours
- N-Acetyl Semax AmidateSubmit yours
- NoopeptSubmit yours
Metabolic
- MOTS-c benefits & side effectsMitochondria-derived peptide regulating metabolic homeostasis and insulin sensitivity. Research shows effects on exercise performance and metabolic aging.
- GhrelinEndogenous 28-amino acid peptide produced primarily in the stomach. The natural ligand for GHS-R1a receptors; regulates hunger, GH secretion, and energy homeostasis.
needs more reports
- 5-Amino-1MQSubmit yours
- AICARSubmit yours
- Neuropeptide YSubmit yours
- ObestatinSubmit yours
- SLU-PP-332Submit yours
Other
- Melanotan IISynthetic alpha-MSH analogue activating melanocortin receptors 1, 3, 4, and 5. Studied for tanning, appetite suppression, and sexual arousal.
- PT-141 benefits & side effectsMelanocortin receptor agonist acting on MC3R and MC4R in the CNS. Approved as Bremelanotide for treating hypoactive sexual desire disorder.
- KisspeptinNeuropeptide that stimulates GnRH secretion from the hypothalamus. Studied for roles in fertility, puberty onset, and hormonal axis regulation.
- HCGGlycoprotein hormone that mimics LH to stimulate testosterone production. Used in fertility treatment and as an adjunct in TRT protocols.
- GonadorelinSynthetic GnRH that stimulates pituitary release of LH and FSH. Used as an HCG alternative in TRT protocols to maintain testicular function.
needs more reports
- AbaloparatideSubmit yours
- AfamelanotideSubmit yours
- Alpha-MSHSubmit yours
- BuserelinSubmit yours
- CarbetocinSubmit yours
- CetrorelixSubmit yours
- DesmopressinSubmit yours
- GanirelixSubmit yours
- LeuprolideSubmit yours
- Melanotan ISubmit yours
- OctreotideSubmit yours
- OxytocinSubmit yours
- Substance PSubmit yours
- TeriparatideSubmit yours
- TestagenSubmit yours
- TriptorelinSubmit yours
- VasopressinSubmit yours