Peptide Research Overviews
A category-by-category look at the mechanisms and research applications behind the peptides we supply — written for researchers who want context beyond a spec sheet.
Where These Peptides Came From
Peptide Discovery & Research History
The researchers, institutions, and original scientific questions behind every peptide we supply — from a 1970s liver-aging study to a 2015 discovery hidden inside mitochondrial DNA.
Read the history →Practical Guides
Are Research Peptides Legal in Malaysia & Singapore?
What the Poisons Act, Sale of Drugs Act, and HSA import rules actually say — not legal advice.
Read the guide →FDA Recommends BPC-157 & 5 Other Peptides for Compounding List
What the July 2026 FDA advisory panel vote on BPC-157, TB-500, KPV, MOTS-c, Semax, and Epitalon means — and why it isn't FDA approval.
Read the update →What Are Lyophilized Peptides?
Why research peptides ship as a freeze-dried powder, and what that means for stability and shelf life.
Read the guide →Peptide Reconstitution Guide
Why bacteriostatic water is used, general handling considerations, and what happens after reconstitution.
Read the guide →Peptide Reconstitution Calculator
Calculate concentration (mg/mL and mcg/mL) from vial size and water volume added — free, no signup.
Use the calculator →Peptide Storage & Stability Guide
How lyophilized and reconstituted peptides differ in stability, and general storage considerations.
Read the guide →Peptide Research Glossary
Plain-language definitions for terms used across our product and research pages, from “peptide” to “triple agonist.”
Read the glossary →How to Read a Certificate of Analysis
What purity, content, and batch numbers actually mean, and how to independently verify a result.
Read the guide →Storing Peptides in a Tropical Climate
Why Malaysia & Singapore's heat and humidity (ICH/WHO Zone IVb) call for different storage habits than temperate-climate advice.
Read the guide →How to Choose a Research Peptide Supplier
What to actually check before ordering — batch-specific testing, sourcing transparency, and how to confirm you're on the right domain.
Read the guide →Category Overviews
Weight Loss / Metabolic Research
Incretin receptor agonism and mitochondrial-derived signaling research, covering Retatrutide and MOTS-c.
Read the overview →GHRH & Growth Hormone Peptides Research
GHRH analogs and ghrelin-receptor secretagogues studied along the growth hormone axis, covering CJC-1295, Ipamorelin, and Tesamorelin.
Read the overview →Healing & Recovery Research
Gastric-protective, cytoskeletal, anti-inflammatory, and copper-binding repair mechanisms, covering BPC-157, TB-500, KLOW Blend, KPV, GHK-Cu, and blends.
Read the overview →Cognitive & Nootropic Research
Tuftsin-derived anxiolytic research and ACTH-derived neuroprotective research, covering Selank and Semax.
Read the overview →Longevity & Cellular Health Research
Telomerase/pineal-signaling research and mitochondrial membrane research, covering Epitalon and SS-31.
Read the overview →PT-141 (Bremelanotide) Research
Melanocortin receptor agonism and reproductive-axis signaling research, covering PT-141 (the compound behind FDA-approved Vyleesi) and Kisspeptin-10.
Read the overview →Khavinson Bioregulator Peptides
Short synthetic peptides studied for tissue-specific gene regulation, spanning our Longevity, Healing & Recovery, and Cognitive categories: Epitalon, Pinealon, Cartalax, Thymalin, and Vilon.
Read the overview →How Related Peptides Compare
Grouped by category — jump to the one you're researching, or see everything in one place below.
Peptide Comparison Chart
All compounds referenced on this site — category, molecular class, mechanism, human trial status, and FDA status — in one reference table.
View the full chart →Weight Loss & Metabolic
Semaglutide vs Tirzepatide vs Retatrutide
How the GLP-1 drug class compares, with mechanism and clinical trial data for all three.
Compare →5-Amino-1MQ vs MOTS-c
An oral small-molecule NNMT inhibitor vs. an injectable mitochondrial-derived peptide.
Compare →Cagrilintide vs Retatrutide
An amylin-receptor agonist vs. a triple GIP/GLP-1/glucagon agonist — two different weight-loss mechanisms.
Compare →GHRH & Growth Hormone
CJC-1295 vs Tesamorelin vs Ipamorelin vs Sermorelin
GHRH-receptor vs. ghrelin-receptor mechanisms, regulatory status, and clinical trial data across all four — start here if you're new to this category.
Compare all four →Or go deeper on one pairing:
CJC-1295 vs Ipamorelin
Two different growth-hormone-axis mechanisms studied together in KYIN's blend.
Compare →Ipamorelin vs Tesamorelin
Ghrelin-receptor agonism vs GHRH-receptor agonism, and why one has FDA-approved trial data.
Compare →Tesamorelin vs CJC-1295
Two GHRH analogs solving the same half-life problem differently, at very different points in clinical validation.
Compare →Healing & Recovery
BPC-157 vs TB-500
Two different mechanisms behind our most-referenced tissue-repair blend.
Compare →BPC-157 vs GHK-Cu
Systemic cytoprotective repair vs copper-dependent collagen synthesis, and why one has human data.
Compare →Thymosin Alpha-1 vs Vilon
Two immune-modulation compounds at opposite ends of the evidence spectrum.
Compare →Cognitive & Nootropic
Semax vs Selank
Same Moscow research lineage and stabilization technique, different research focus.
Compare →Cartalax vs Pinealon
Same disputed Khavinson bioregulator mechanism, aimed at cartilage vs brain tissue.
Compare →Longevity & Cellular Health
MOTS-c vs SS-31
Two mitochondrial mechanisms at very different points in clinical development, including trial data.
Compare →Epitalon vs SS-31
Telomerase/pineal signaling vs. mitochondrial membrane protection, two dominant angles in cellular aging research.
Compare →What Is Epitalon?
Synthetic tetrapeptide studied for its role in telomerase activity and aging research.
View Specs →What Is Thymosin Alpha-1?
Thymic peptide studied for immune-modulation research — immunity and general health, not tissue repair.
Read More →Research hub questions
What research categories does KYIN Peptides cover?
KYIN Peptides' research overviews span five categories: Weight Loss / Metabolic, GHRH & Growth Hormone, Healing & Recovery, Cognitive & Nootropic, and Longevity & Cellular Health.
Where can I find reconstitution and storage guidance?
Two dedicated practical guides cover this: a reconstitution guide and a storage & stability guide, both linked above.
Is the information on this page intended for clinical or human use?
No. All content is provided for general research and educational context. Every peptide referenced is sold strictly for laboratory research use by qualified professionals — not for human or animal use, and not intended for diagnostic, therapeutic, or consumption purposes.
Looking for specs and pricing?
Browse the full catalogue for purity, sizes, and pricing on every peptide.