Peptide library
What 53 common peptides are, what people use them for, how they work in the body, how strong the evidence is, and their side effects and regulatory status.
Fiala is a free, private app to learn about peptides, convert a prescribed dose into syringe units, and log doses, vials and schedules. Nothing leaves your phone.
Open FialaMetabolic & weight
- AOD-9604 · hGH fragment 176-191 (modified)Modified fragment of human growth hormone once developed as an anti-obesity drug.
- Cagrilintide · CagriSema (with semaglutide)Long-acting amylin analog being studied for weight loss, mainly combined with semaglutide.
- Dulaglutide · TrulicityOnce-weekly GLP-1 receptor agonist approved for type 2 diabetes.
- Exenatide · Byetta, BydureonThe first GLP-1 receptor agonist, originally found in Gila monster venom, approved for type 2 diabetes.
- Liraglutide · Victoza, SaxendaOnce-daily GLP-1 receptor agonist; the predecessor of semaglutide.
- Mazdutide · IBI362, LY3305677Once-weekly dual GLP-1 and glucagon receptor agonist for weight management.
- Pramlintide · SymlinSynthetic version of the hormone amylin, used with mealtime insulin in diabetes.
- Retatrutide · LY3437943Experimental triple GIP / GLP-1 / glucagon receptor agonist being studied for obesity.
- Semaglutide · Ozempic, Wegovy, RybelsusOnce-weekly GLP-1 receptor agonist for type 2 diabetes and chronic weight management.
- Setmelanotide · ImcivreeMC4R agonist approved for rare genetic causes of severe obesity.
- Survodutide · BI 456906Experimental once-weekly dual glucagon and GLP-1 receptor agonist being studied for obesity and fatty liver disease.
- Tirzepatide · Mounjaro, ZepboundOnce-weekly dual GIP and GLP-1 receptor agonist for type 2 diabetes and weight management.
Growth hormone axis
- CJC-1295 · CJC-1295 with DAC, Mod GRF 1-29 (no DAC)Long-acting GHRH analog, often paired with ipamorelin in popular protocols.
- GHRP-2 · PralmorelinSynthetic growth hormone–releasing peptide used in Japan as a diagnostic test.
- GHRP-6First-generation growth hormone–releasing hexapeptide known for strong hunger effects.
- Hexarelin · ExamorelinPotent synthetic growth hormone secretagogue related to GHRP-6.
- IGF-1 DES · DES(1-3)IGF-1Shortened, fast-acting form of insulin-like growth factor 1 sold as a research chemical.
- IGF-1 LR3 · Long R3 IGF-1Modified, longer-acting form of insulin-like growth factor 1.
- IpamorelinSelective growth hormone secretagogue (ghrelin-receptor agonist).
- MK-677 · Ibutamoren, MK-0677Oral growth hormone secretagogue. It is not a peptide, but is commonly tracked alongside them.
- Sermorelin · GRF 1-29, GerefShort GHRH fragment that stimulates natural growth hormone release.
- Tesamorelin · EgriftaGHRH analog approved to reduce excess abdominal fat in people with HIV-associated lipodystrophy.
Tissue repair
- BPC-157 · Body Protection Compound-157Synthetic 15-amino-acid peptide studied in animals for tendon, ligament and gut healing.
- TB-500 · Thymosin Beta-4 (fragment)Synthetic peptide based on thymosin beta-4, studied for wound and soft-tissue repair.
- Thymosin Beta-4 · Tβ4The full natural protein that TB-500 is based on, tested in clinical trials for eye and wound healing.
Muscle & performance
- Follistatin-344 · FS-344Protein that blocks myostatin, the body's brake on muscle growth, sold as a research chemical.
- MGF · Mechano growth factor, PEG-MGFPeptide from a variant of IGF-1 made by muscle after exercise or injury, sold as a research chemical.
Skin & cosmetic
- Afamelanotide · ScenesseMelanocortin-1 receptor agonist implant approved to protect people with a rare light sensitivity disorder.
- GHK-Cu · Copper peptide, Copper tripeptide-1Naturally occurring copper-binding tripeptide widely used in skincare.
- Melanotan II · MT-2, MT-IINon-selective melanocortin agonist used unofficially for tanning.
Sexual health
Hormonal & fertility
- Gonadorelin · GnRH, LHRH, FactrelSynthetic version of gonadotropin-releasing hormone (GnRH).
- Kisspeptin-10 · Kisspeptin, Metastin (45-54)Short form of kisspeptin, the hormone that switches on the reproductive axis.
- Oxytocin · Pitocin, SyntocinonNatural hormone that drives labor and milk let-down, also studied for social bonding.
Cognitive & mood
- CerebrolysinMixture of peptides from pig brain, used in some countries after stroke and brain injury.
- Dihexa · PNB-0408Experimental compound derived from angiotensin IV, studied in animals for memory.
- PE-22-28 · Mini-spadinExperimental peptide studied in mice for fast-acting antidepressant effects.
- Pinealon · EDR peptide, Glu-Asp-ArgThree-amino-acid 'bioregulator' peptide from Russian research, promoted for brain health.
- SelankSynthetic tuftsin analog studied as an anti-anxiety agent.
- Semax · ACTH(4-10) analogSynthetic ACTH fragment used in Russia for stroke recovery and cognition.
Sleep
Immune & inflammation
- ARA-290 · CibinetidePeptide derived from erythropoietin (EPO), studied for nerve pain and inflammation without raising red blood cells.
- KPV · Lysine-proline-valine, α-MSH (11-13)Anti-inflammatory tripeptide taken from the end of alpha-MSH.
- LL-37 · Cathelicidin, CAMPThe only human cathelicidin: an antimicrobial peptide made by the immune system.
- Thymosin Alpha-1 · Thymalfasin, Zadaxin, Tα1Thymus-derived immune-modulating peptide approved in several countries.
- VIP · Vasoactive intestinal peptide, AviptadilNeuropeptide that relaxes blood vessels and calms immune responses.
Longevity & cellular health
- Elamipretide · SS-31, Forzinity, BendaviaMitochondria-targeting peptide approved for the rare genetic disorder Barth syndrome.
- Epitalon · Epithalon, AEDG peptideSynthetic four-amino-acid peptide researched for anti-aging effects.
- FOXO4-DRI · ProxofimExperimental 'senolytic' peptide that cleared ageing cells in mice.
- Glutathione · GSH, L-glutathioneThe body's main antioxidant, a tripeptide sold as a supplement and given by injection for skin lightening.
- HumaninSmall peptide made by mitochondria, studied in the lab for protecting cells from age-related damage.
- MOTS-cMitochondria-derived peptide studied for metabolism and exercise capacity.
Bone health
Mixing guides
Vial mixing guides: how to mix 53 common vial sizes of 25 peptides and read the syringe at your dose.
Stacks & blends
- GLOWThree-peptide blend of GHK-Cu, BPC-157 and TB-500, marketed for skin, hair and recovery.
- KLOWGLOW plus KPV: four peptides marketed for skin, recovery and inflammation.
- Wolverine stackBPC-157 with TB-500, the most popular combination for injury recovery.
- CJC-1295 + IpamorelinTwo growth hormone releasers that work through different pathways, often sold pre-mixed.
- CagriSemaNovo Nordisk's experimental once-weekly combination of an amylin analogue and semaglutide for obesity.