Research Grade · Third-Party Tested
Your Lifeforce, Optimized.
Research-grade peptides engineered for those who operate at the edge.
Molecular Precision
Built at the Atomic Level
Every compound in our library is synthesized via SPPS, purified to 99.6%+ via HPLC, and structurally confirmed through mass spectrometry. This isn't a claim — it's documented, verified, and available for review.
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Research Compounds
The Compound Library
Precision-synthesized peptides, each batch third-party tested and verified to 99%+ purity.
5-Amino-1MQ 50mg — NNMT Inhibitor
$79.99
PopularBPC-157 10mg — Body Protection Compound
10mg$79.99
CJC-1295 (No DAC) 10mg — GHRH Analog
10mg$84.99
Cognitive Edge Stack — Semax + Selank
Epitalon 10mg — Telomerase-Activating Tetrapeptide
10mg$49.99
GH Maximizer Stack — Tesamorelin + Ipamorelin + CJC-1295
GHK-Cu 50mg — Copper Peptide Complex
50mg$59.99
NewGLP3-RT 20mg — Triple Agonist (GLP-1/GIP/Glucagon)
20mg$169.99
Glutathione 1500mg — L-Glutathione (Reduced)
$99.99
Immune Resilience Stack — Thymosin Alpha-1 + KPV + Epitalon
Ipamorelin 10mg — Growth Hormone Secretagogue
10mg$69.99
KPV 10mg — Anti-Inflammatory Tripeptide
10mg$79.99
Longevity Protocol — Epitalon + GHK-Cu + MOTS-C
Melanotan 2 10mg — Synthetic α-MSH Analog
$44.99
Metabolic Recomp Stack — GLP3-RT + MOTS-C + 5-Amino-1MQ
MOTS-C 20mg — Mitochondrial-Derived Peptide
20mg$99.99
NAD+ 500mg — Nicotinamide Adenine Dinucleotide
500mg$89.99
Selank 10mg — Anxiolytic Neuropeptide
10mg$49.99
Semax 10mg — Nootropic Neuropeptide
10mg$49.99
PopularTB-500 10mg — Thymosin Beta-4
10mg$89.99
Tesamorelin 10mg — GHRH Analog
10mg$89.99
Thymosin Alpha-1 10mg — Immune Modulating Peptide
10mg$109.99
Total Optimization Stack — The Complete Protocol
Wolverine Stack — BPC-157 + TB-500
Why Ki Peptides
The Standard Others Reference.
Most peptide companies talk about purity. We publish it. Every batch, every compound, every time — verified by independent labs with no financial relationship to Ki Peptides. This isn't a marketing page. It's a commitment.
Precision That Speaks for Itself
Solid-phase synthesis. HPLC purification. Mass spec confirmation. Every batch independently verified — because claims without data are just marketing.
Verification on Record
Certificates of Analysis for every compound. Full testing methodology published. Independent lab reports available before purchase — not after.
Independent by Design
Accredited third-party laboratories run every test. HPLC purity, mass spec identity, endotoxin screening. No in-house testing. No conflicts of interest.
Research Stacks
Three protocols. One library.
Three research pathways, each built around complementary compounds. Select a stack or build your own protocol.
Repair & Rebuild
Targeted peptides for tissue recovery, gut health, and accelerated healing. Our most researched compounds for physical restoration.
Explore RecoveryOptimize Output
Compounds engineered for muscle growth, fat metabolism, and cognitive performance. Precision tools for the edge-seeking researcher.
Explore PerformanceExtend Your Prime
Research-grade peptides targeting cellular repair, telomere support, and age-related decline. The frontier of human optimization.
Explore LongevityFrom the Lab
Research Highlights
Deep dives into mechanism-of-action science, compound comparisons, and the latest peptide research — written for researchers, not marketers.
View All Research →
Glutathione: The Master Antioxidant Every Longevity Stack Depends On
Glutathione is the body's master antioxidant — the single tripeptide that keeps the entire cellular redox network run...
Apr 22, 2026
Epitalon & Telomerase: The 4-Amino-Acid Longevity Peptide
Epitalon is the only synthetic peptide with published research showing it activates telomerase in human somatic cells...
Apr 22, 2026
Tesamorelin & Visceral Fat: What the Phase III Data Actually Shows
Tesamorelin is the only GHRH analog with Phase III clinical data on visceral fat reduction — published in the New Eng...
Apr 22, 2026How It Works
From Selection to Research
A streamlined process designed for researchers who value precision, transparency, and speed.
Select Your Compound
Browse our research library by goal — recovery, performance, or longevity. Every product page includes mechanism of action, molecular specifications, and published research.
18 CompoundsVerify Purity
Review the Certificate of Analysis before you order. HPLC purity data, mass spec confirmation, and endotoxin screening — all from independent labs.
COA IncludedFast Shipping
Orders ship within 24 hours in discreet, protective packaging. Free shipping on orders over $199.
24hr DispatchRecord & Research
Document your research with precision. Each compound includes storage guidelines, molecular data, and published research references.
Full Support
Are peptides legal to purchase?
Yes. Research peptides are legal to purchase in the United States for research purposes. Ki Peptides sells all compounds strictly as research chemicals, not for human consumption. Always check your local regulations before ordering.
How is purity verified?
Every compound undergoes HPLC (High-Performance Liquid Chromatography) and mass spectrometry analysis by independent third-party laboratories. Certificates of Analysis documenting purity and identity are available for every product in our catalog.
What is a Certificate of Analysis (COA)?
A COA is a laboratory document confirming the identity, purity, and quality of a compound. Our COAs include HPLC purity percentage, mass spectrometry molecular weight confirmation, and endotoxin screening results — all verified by independent labs. COAs are available for every product in our catalog.
How should I store peptides?
Lyophilized (powder form) peptides should be stored at -20°C for long-term storage or 2-8°C (refrigerator) for up to 12 months. Protect from light and avoid repeated freeze-thaw cycles.
How quickly do orders ship?
Orders placed before 2 PM PST ship the same business day. All orders include tracking and are shipped in discreet, protective packaging. Orders over $199 qualify for free shipping.
Do you ship internationally?
Currently, we ship within the United States only. International shipping is under development. Sign up for our newsletter to be notified when international orders become available.
What is your return policy?
Due to the nature of research chemicals, we cannot accept returns on opened products. Unopened, sealed products may be returned within 30 days of delivery for a full refund. Please contact our team immediately for any defective or damaged shipments.
Are these peptides pharmaceutical grade?
Our peptides are research-grade, manufactured in GMP-compliant facilities with purity verified at 99%+ by independent laboratories. They are synthesized using solid-phase peptide synthesis (SPPS) and purified via HPLC. All compounds are sold strictly for research and laboratory use only.
Didn't find your answer?
Contact our research team →Start Your Research
Your Biology, Elevated.
Browse our full compound library — every peptide third-party tested, COA documented, and backed by published research.