Evidence-First Peptide Research & Education
Evidence Over Hype.
Plain-English guides to peptides — what they do, what’s safe, and where to find them.
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Peptides, Decoded.
The peptide world is drowning in jargon. We translate it into language that actually makes sense.
terms decoded and counting
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Compound Library
Science-backed profiles on 104+ therapeutic peptides and hormones
All compounds
BPC-157
A synthetic pentadecapeptide showing promise in tissue repair and gut healing research.
Semaglutide
A GLP-1 receptor agonist FDA-approved for type 2 diabetes and chronic weight management.
Tirzepatide
A dual GIP/GLP-1 receptor agonist FDA-approved for type 2 diabetes and weight management.
Testosterone
The primary androgen hormone used in testosterone replacement therapy for diagnosed hypogonadism.
GHK-Cu
A naturally occurring copper peptide complex with skin remodeling and wound healing properties.
TB-500
A synthetic fragment of thymosin beta-4 studied for tissue repair and anti-inflammatory effects.
CJC-1295/Ipamorelin
A combination growth hormone secretagogue pairing a GHRH analog with a ghrelin mimetic.
Sermorelin
A GHRH analog that stimulates natural growth hormone release from the pituitary gland.
Tesamorelin
An FDA-approved GHRH analog indicated for HIV-associated lipodystrophy.
MK-677
An oral growth hormone secretagogue that mimics ghrelin to stimulate GH and IGF-1 release.
NAD+
A critical coenzyme involved in cellular energy production and DNA repair pathways.
Rapamycin
An mTOR inhibitor FDA-approved as an immunosuppressant, now studied for longevity applications.
Enclomiphene
A selective estrogen receptor modulator used to stimulate endogenous testosterone production.
Methylene Blue
A synthetic dye with FDA approval for methemoglobinemia, now explored for cognitive and mitochondrial support.
Retatrutide
Investigational triple receptor agonist showing the largest Phase 2 weight reductions reported to date.
Liraglutide
First-generation daily GLP-1 receptor agonist FDA-approved for type 2 diabetes (Victoza) and weight management (Saxenda).
Dulaglutide
Once-weekly GLP-1 receptor agonist FDA-approved for type 2 diabetes with cardiovascular risk reduction data.
Cagrilintide
Long-acting amylin analog under investigation alone and in combination with semaglutide (CagriSema) for weight management.
Cagrilintide + Semaglutide
Combination therapy pairing an amylin analog with a GLP-1 agonist for enhanced appetite control and weight loss.
Mazdutide
Investigational dual GLP-1/glucagon receptor agonist in clinical development for obesity and metabolic disease.
Survodutide
Dual GLP-1/glucagon receptor agonist being studied for weight loss and MASH (liver disease) applications.
Orforglipron
Investigational once-daily oral small-molecule GLP-1 receptor agonist that does not require injection.
Eloralintide
Investigational selective amylin receptor agonist in development for weight management.
Tesofensine
Originally developed for Parkinson’s disease, now studied as a potent appetite-suppressing weight loss agent.
5-Amino-1MQ
Selective NNMT inhibitor researched as a fat-loss and metabolic regulator in preclinical models.
AICAR
AMP-kinase activator studied as an exercise mimetic for fat oxidation and metabolic adaptation.
SLU-PP-332
Selective ERRα agonist being researched as an exercise mimetic to improve endurance and metabolic health.
AOD-9604
Modified fragment of human growth hormone studied for fat-burning activity without growth-promoting effects.
HGH Fragment 176-191
Modified fragment of HGH containing the lipolytic portion of the molecule, studied for fat metabolism.
Adipotide
Experimental peptide that targets adipose tissue vasculature to induce fat cell apoptosis in animal models.
BPC-157 + TB-500
Popular research blend combining BPC-157 and TB-500 for synergistic tissue repair applications.
GHK
Naturally occurring tripeptide and base form of GHK-Cu, studied for tissue repair and skin remodeling.
KPV
Tripeptide fragment of alpha-MSH studied for anti-inflammatory effects in gut and skin research.
LL-37
Naturally occurring cathelicidin antimicrobial peptide studied for wound healing and immune modulation.
ARA-290
Erythropoietin-derived peptide studied for tissue repair and neuropathic pain without EPO’s blood-stimulating effects.
PGPIPN
Therapeutic hexapeptide studied for immunomodulatory and anti-inflammatory effects in chronic conditions.
Bronchogen
Khavinson bioregulator peptide researched for bronchial and respiratory tissue support.
Cardiogen
Khavinson bioregulator researched for cardiovascular tissue support and cardiac cell function.
Cartalax
Bioregulator peptide researched for cartilage maintenance and musculoskeletal anti-aging.
Chonluten
Bioregulator researched for respiratory mucosal tissue and lung epithelial cell function in aging.
Cortagen
Bioregulator researched for cerebral cortex support and neuroprotection in age-related cognitive decline.
Livagen
Bioregulator researched for hepatic tissue support and chromatin decondensation in hepatocytes.
Ovagen
Bioregulator researched for liver and gastrointestinal tissue support.
Pancragen
Bioregulator researched for pancreatic tissue support and beta-cell function.
Prostamax
Bioregulator peptide researched for prostate health and urological function.
Testagen
Bioregulator researched for testicular function and testosterone support in anti-aging protocols.
Thymagen
Bioregulator dipeptide researched for thymic function and immune modulation in aging.
Thymalin
Thymic peptide extract researched for immune support and thymus regeneration in longevity protocols.
Vesilute
Bioregulator researched for vascular tissue support and blood vessel wall function.
Vesugen
Bioregulator tripeptide researched for vascular endothelial support and cardiovascular health.
Pinealon
Russian-developed bioregulator researched for brain aging and pineal gland function.
Vilon
Synthetic dipeptide bioregulator researched for thymus function and immune aging.
Somatropin (HGH)
Recombinant human growth hormone identical to naturally produced GH; FDA-approved for GH deficiency.
GHRP-2
Potent synthetic ghrelin mimetic studied for stimulating pituitary growth hormone release.
GHRP-6
GHRP studied for potent GH release and notable appetite-stimulating properties.
Hexarelin
One of the most potent GHRPs available, producing significant GH secretion in research.
IGF-1 LR3
Modified IGF-1 with extended half-life studied for muscle growth and cellular proliferation.
IGF-1 DES
Truncated IGF-1 lacking first three amino acids; significantly more potent locally than full IGF-1.
MGF (Mechano Growth Factor)
Splice variant of IGF-1 produced in response to muscle stretching and damage; studied for repair.
PEG-MGF
Pegylated form of MGF with extended half-life for systemic muscle repair signaling.
Follistatin
Glycoprotein that inhibits myostatin and activin, studied for muscle growth promotion.
Follistatin 315
Tissue-bound follistatin isoform with localized myostatin-blocking activity.
Follistatin 344
Circulating follistatin isoform that binds and inhibits myostatin and activin.
Semax
Russian-developed nootropic peptide based on ACTH fragment, studied for cognition and neuroprotection.
Selank
Russian-developed peptide combining a tuftsin fragment with additional amino acids; studied for anxiolytic and nootropic effects.
Adamax
Enhanced variant of Semax developed for cognitive enhancement and mental clarity research.
Dihexa
Potent nootropic peptide derived from angiotensin IV, studied for memory and neuroplasticity.
P21
Synthetic peptide designed to mimic BDNF effects for cognitive enhancement and neurogenesis.
PE-22-28
Synthetic Spadin analog researched for antidepressant and cognitive-enhancing effects.
Cerebrolysin
Mixture of peptides and amino acids derived from pig brain tissue; researched for neurotrophic effects in cognitive recovery.
DSIP
Neuropeptide researched for sleep regulation and stress response modulation.
Melanotan I
Melanocortin peptide approved for erythropoietic protoporphyria; researched for tanning effects.
Melanotan II
Synthetic melanocortin peptide researched for tanning and libido-enhancing effects.
AHK-Cu
Copper peptide complex researched for hair growth stimulation and follicle health.
Argireline
Cosmetic peptide that mimics the N-terminal end of SNAP-25 to reduce expression-line wrinkles.
Matrixyl
Lipopeptide that stimulates collagen and ECM production, widely used in anti-aging skincare.
SNAP-8
Cosmetic peptide researched as a Botox-like wrinkle reducer at the molecular level.
Syn-Ake
Cosmetic tripeptide mimicking Waglerin-1 from temple viper venom for wrinkle smoothing.
Syn-Coll
Cosmetic peptide that stimulates collagen by mimicking thrombospondin-1 signaling.
Pal-AHK
Lipopeptide form of AHK researched for hair follicle stimulation and scalp health.
Pal-GHK
Lipopeptide form of GHK that enhances skin penetration for collagen stimulation.
Palmitoyl Dipeptide-6
Lipopeptide cosmetic ingredient that mimics retinol-like effects without irritation.
Pentapeptide-18
Cosmetic peptide with neurotransmitter-inhibiting properties; reduces expression wrinkles.
Rigin
Cosmetic lipopeptide that reduces inflammation-driven skin aging by inhibiting IL-6.
Tripeptide-29
Sequence identical to type I collagen repeat unit; used to stimulate fibroblast collagen production.
Vialox
Synthetic cosmetic peptide that competitively inhibits acetylcholine binding to reduce wrinkles.
Decapeptide-12
Synthetic skin-lightening peptide that inhibits melanin production via tyrosinase activity.
Nonapeptide-1
Synthetic peptide that inhibits melanin synthesis by blocking alpha-MSH at MC1R receptors.
PT-141
Melanocortin peptide FDA-approved for hypoactive sexual desire disorder (Vyleesi); also compoundable.
Oxytocin
Naturally occurring neuropeptide hormone involved in social bonding, reproduction, and stress regulation.
Gonadorelin
Synthetic gonadotropin-releasing hormone used to stimulate LH/FSH and support testosterone production.
Triptorelin
Synthetic GnRH agonist used clinically for prostate cancer, endometriosis, and precocious puberty.
Kisspeptin-10
Neuropeptide central to regulating the reproductive hormone axis; studied for libido and fertility.
Dermorphin
Naturally occurring opioid peptide originally isolated from frog skin; studied for analgesia.
Epithalon
Synthetic tetrapeptide researched for telomerase activation and cellular aging effects.
FOXO4-DRI
Research peptide designed to selectively clear senescent cells in anti-aging studies.
MOTS-c
Mitochondrial-derived peptide researched as an exercise mimetic for metabolism and insulin sensitivity.
Humanin
Mitochondrial-derived peptide researched for neuroprotective and cytoprotective effects.
SS-31
Mitochondria-targeted peptide researched for cellular energy and oxidative stress protection.
Glutathione
Master antioxidant tripeptide critical for detoxification, immune function, and oxidative stress protection.
PNC-27
Experimental peptide researched for selective effects on abnormal cells while sparing healthy cells.
Thymosin Alpha-1
Thymic peptide with immune-modulating properties; researched as adjunct in viral and immune conditions.
VIP
Neuropeptide with wide-ranging effects on the gut, nervous system, and immune function.
DS5
Emerging research peptide with limited publicly available data.
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Weight Management
Evidence-based approaches to sustainable weight loss
4 compoundsMuscle & Performance
Build, preserve, and optimize body composition
5 compoundsAnti-Aging & Longevity
Cellular health and healthspan optimization
5 compoundsInjury & Tissue Repair
Supporting the body's natural healing processes
3 compoundsLatest Research
In-depth articles on peptide science, safety, and regulation.
Peptides vs. Research Chemicals: Know the Difference
March 10, 2025 · 9 min read
Not everything sold as a "peptide" online is what you think. Understanding the distinction between pharmaceutical peptides and research chemicals could protect your health.
Clinical DataregulationFDA Peptide Regulations: What Changed and What's Coming
March 1, 2025 · 11 min read
The regulatory landscape for peptides is shifting fast. From bulk drug substance categories to compounding restrictions, here's a timeline of what happened and what to watch for.
Peer Reviewedsafety5 Red Flags When Buying Peptides Online
February 20, 2025 · 7 min read
Not all peptide sources are legitimate. These five warning signs can help you identify risky vendors before you hand over your money — or your health.
Clinical DataGray Market Watch
Ongoing monitoring of unregulated peptide sources, testing data, and consumer risks.
Know Your Source
Up to 40%
of tested gray market peptides fail independent purity analysis, according to published testing data
Zero
FDA oversight of vendors selling peptides as “research chemicals” — no required quality testing, no inspections
$75–300/mo
typical cost range from licensed compounding pharmacies vs. unknown risk from unregulated sources
Regulatory Watch
Tracking FDA actions, legal challenges, and policy changes affecting peptide access.
2024-10-02
FDA Declares End to Semaglutide Shortage, Threatening Compounded Access
The FDA has officially removed semaglutide from the drug shortage list, which may end the legal basis for pharmacies to compound the blockbuster GLP-1 medication. Compounding pharmacies had been permitted to produce semaglutide under a shortage exemption since 2022.
2024-11-15
RICO Class Action Filed Against Major Telehealth and Compounding Operations
A federal RICO class action lawsuit has been filed alleging coordinated fraud between certain telehealth platforms and compounding pharmacies in the peptide and GLP-1 space. The suit claims a pattern of unnecessary prescriptions, inflated pricing, and misleading marketing.
2025-01-20
New HHS Leadership Signals Potential Shift in Peptide Regulatory Approach
Recent statements from HHS leadership suggest a potential reevaluation of the regulatory framework for compounded peptides, including possible expanded access pathways. Industry observers note this could significantly impact the availability of compounds like BPC-157 and growth hormone secretagogues.
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Browse Directory →Practical Guides
Step-by-step instructions for safe handling, storage, and administration.
Injection Basics
Proper technique, site rotation, and safety fundamentals for subcutaneous peptide injections.
Reconstitution Guide
Step-by-step instructions for reconstituting lyophilized peptides with bacteriostatic water.
Warning Signs
Red flags that indicate contamination, degradation, or counterfeit peptide products.
Storage & Handling
Temperature requirements, light sensitivity, and shelf life for common peptide compounds.
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