Research Peptides by Category
Explore the PeptidesDirect research peptide catalog by research area. Compare compounds, listed vial contents and current prices, then open a product page for its specifications and available lot documents. All products are Research Use Only, not for human or veterinary use.
GLP-1 & Metabolic
GLP-1 receptor agonists and metabolic peptides mimic incretin hormones to regulate blood glucose, slow gastric emptying, and modulate appetite signaling pathways. Research focuses on their role in energy homeostasis and metabolic syndrome.
- Semaglutide
- Tirzepatide
- Retatrutide
- Liraglutide
- AOD 9604
- MK-677 (Ibutamoren)
- Adipotide (FTPP)
- AICAR
- Cagrilintide
- Survodutide
- Mazdutide
- Pramlintide
- 5-Amino-1MQ
- SLU-PP-332
- Maridebart Cafraglutide (MariTide)
- Orforglipron
- VK2735
- Petrelintide
- Eloralintide
- Pemvidutide
- Ecnoglutide
- Glepaglutide
- CagriSema (Cagrilintide + Semaglutide)
Growth Hormone
Growth hormone secretagogues stimulate the pituitary gland to release endogenous GH through GHRH or ghrelin receptor activation. These peptides are studied for their effects on body composition, IGF-1 levels, and somatotropic axis regulation.
- CJC-1295 w/DAC
- Mod GRF 1-29 (CJC-1295 No DAC)
- Ipamorelin
- GHRP-2
- GHRP-6
- Hexarelin
- Sermorelin
- Tesamorelin
- GHRH (GH Releasing Hormone)
- GHRP-1
- CJC-1295 No DAC + Ipamorelin Blend
- CJC-1295 No DAC + GHRP-6 Blend
- Tesamorelin + Ipamorelin Blend
Recovery & Repair
Tissue-repair peptides accelerate wound healing, reduce inflammation, and promote angiogenesis through mechanisms such as nitric oxide modulation and growth factor upregulation. Key research areas include tendon, ligament, and gastrointestinal tissue regeneration.
- BPC-157
- TB-500 (Thymosin Beta-4)
- GHK-Cu (Copper Peptide)
- MGF (Mechano Growth Factor)
- PEG-MGF (Pegylated MGF)
- Wolverine Blend (BPC-157 + TB-500)
- GLOW Blend (GHK-Cu + BPC-157 + TB-500)
- KLOW Blend (KPV + GHK-Cu + BPC-157 + TB-500)
- AHK-Cu
Growth Factors
Insulin-like growth factors and mechano-growth factors play critical roles in cellular proliferation, differentiation, and muscle hypertrophy. Research examines their paracrine and autocrine signaling in tissue development and repair.
Reproductive
Reproductive peptides act on the hypothalamic–pituitary–gonadal (HPG) axis to modulate gonadotropin release, fertility signaling, and hormonal balance. Studies explore their applications in reproductive endocrinology research.
Melanocortin
Melanocortin peptides bind MC1R–MC5R receptors to influence pigmentation, sexual function, appetite, and inflammatory responses. Research spans dermatology, sexual medicine, and neuroendocrine regulation.
Cognitive
Nootropic and neuroprotective peptides modulate neurotransmitter systems (including BDNF, serotonin, and dopamine pathways) to support memory, focus, anxiolysis, and neuroplasticity. They are studied in cognitive decline and stress-related research models.
- Semax
- N-Acetyl Semax Amidate
- Selank
- DSIP
- P21 (P021)
- Cerebrolysin
- Dihexa
- FGL (FGLL)
- NAP (Davunetide)
- Trofinetide (NNZ-2566)
- Adamax 984 Da
- Adamax 1032 Da
Longevity
Anti-aging peptides target mitochondrial function, telomerase activity, and cellular senescence pathways. Research investigates their potential to extend cellular lifespan, improve metabolic efficiency, and protect against age-related oxidative damage.
Immune
Immunomodulatory peptides regulate innate and adaptive immune responses through mechanisms such as antimicrobial activity, cytokine modulation, and T-cell maturation. They are studied in infection, autoimmunity, and immune reconstitution models.
Bioregulators
Short-chain bioregulator peptides (typically 2–4 amino acids) interact with specific DNA sequences to modulate gene expression in targeted organ systems. Developed from Khavinson's research, they are studied for tissue-specific regenerative effects.
- Bronchogen
- Cardiogen
- Cartalax
- Chonluten
- Cortagen
- Livagen
- Pancragen
- Pinealon
- Prostamax
- Testagen
- Vesilute
- Vesugen
- Bonothyrk
Specialty
Specialty peptides encompass unique research compounds with novel mechanisms that don't fit neatly into other categories — including antioxidants, neuropeptides, and experimental sequences under active investigation.
- ARA-290
- B7-33
- PE-22-28
- PNC-27
- VIP
- Thyrotropin (TRH)
- Argireline (Acetyl Hexapeptide-8)
- Matrixyl (Palmitoyl Pentapeptide-4)
- SNAP-8 (Acetyl Octapeptide-3)
- Larazotide Acetate
Start with the research question, not just the peptide name
A useful peptide catalog connects a compound to the question you want to investigate. Category names are starting points, not promises of a biological result. Two products in the same group can differ in structure, targets and supporting evidence. Open the individual profile to understand those differences before choosing material for a study.
For example, the growth hormone category includes CJC-1295 with DAC, Mod GRF 1-29 without DAC and Ipamorelin. These names are not interchangeable. The growth hormone comparison explains their different research contexts. For copper peptides, begin with GHK-Cu and follow its cited research rather than assuming all copper-containing compounds behave alike.
Compare categories without losing the compound-level detail
The GLP-1 and metabolic category brings together compounds discussed in metabolic signaling research. The cognitive category includes Semax and Selank, while growth factors includes IGF-related research materials. These groupings help you find related entries; they do not establish equivalent activity or suitability for your experiment.
Some catalog entries are blends, modified peptides or non-peptide compounds. NAD+, for example, is a coenzyme rather than a peptide. Use the peptide directory to review listed molecular mass, available sequence information and research summaries. A field marked as missing is a reason to seek clarification, not a value to guess.
Read purity, molecular identity and vial content separately
A purity specification, a molecular mass and a vial's listed milligram content describe different things. HPLC peak-area purity does not, by itself, measure total material in a vial or establish sterility. A measured mass can support identity assessment, but it does not uniquely prove every amino-acid sequence. The purity versus content guide explains how to read these distinctions.
Product pages show the recorded purity specification and link to lot documentation where available. Review the report's product, lot and methods rather than treating a catalog specification as a measured result for every vial. The COA library and lab verification guide provide a separate place to review available documents and what their measurements mean.
Use published research to understand both findings and limits
A research summary is most useful when it tells you what was studied, in which model, and what remains uncertain. Results from cells or animals do not establish a human benefit. Clinical findings concern the specific study material and population; they do not demonstrate that a catalog vial is equivalent to a medicine.
Follow the references on the product page and explore the research library for longer profiles. The growth-factor article compares native IGF-1, LR3 and DES in the context of published work. The Peptides FAQ answers broader questions about mass, purity, combination research and evidence without dosing guidance.
Turn a well-defined comparison into an informed order
Once you have identified the compound, compare the listed vial sizes and current prices on its product page. Milligrams describe catalog vial contents, not an administration schedule. For blends, review the stated components and amounts instead of assuming the total describes each ingredient. The pricing page offers another way to compare listed vial costs.
Choose an available option on the product page and add it to your cart, or continue browsing the shop. Check the selected product, vial size and quantity before checkout. If a specification or document is unclear, use Contact before ordering. All catalog materials are supplied strictly for laboratory research, not personal treatment or human or veterinary use.
