Purity is only one line on a certificate. A truly research-grade peptide also has to pass tests most labels never mention. Here is what we screen for — and why it matters.
01 · Endotoxins
Bacterial fragments left behind
Even sterile material can carry endotoxins from the synthesis process — invisible to a standard purity assay.
Why it matters: they skew sensitive in-vitro and in-vivo results.
02 · Sterility
The absence of living contamination
Bioburden screening confirms no viable microbes survive lyophilization and handling before the vial is sealed.
Why it matters: contamination ruins reconstitution and reproducibility.
03 · Heavy Metals
Lead, arsenic, mercury & cadmium
Trace metals introduced during synthesis or from reagents are quantified, not assumed away.
Why it matters: they bind targets and confound toxicology readouts.
04 · Batch Consistency
Verification every batch matches
Identity and mass are re-confirmed lot to lot so the compound you order today equals the one you ordered before.
Why it matters: consistency is the foundation of a valid study.
Purity is the floor. Not the ceiling.
Every Pepitiva compound is third-party tested and ships with its certificate of analysis — so your data starts from a known quantity.
Every batch undergoes HPLC analysis and mass spectrometry. Certificate of Analysis available for download.
≥99% avg purity
02
Made-to-Order Freshness
Compounds are prepared and lyophilized close to dispatch — not left sitting in a warehouse.
Fresh lots
03
Fast Shipping
Processing within 24h. Specialized thermal packaging to maintain product integrity.
Fast dispatch
04
Scientific Support
Technical team available to guide your research. Support via WhatsApp and email.
Encrypted checkout
05
Researcher Support
Real people who can talk reconstitution, handling and COA questions — not a script-reading queue.
Human support
06
Flexible Dosing Options
Single vials through multi-dose kits, so you order exactly the quantity your protocol needs.
Multiple sizes
Research Peptides
What Are Research Peptides?
Peptides are short chains of amino acids — the same building blocks that form proteins in every living organism. In scientific research, synthetic peptides serve as powerful tools for studying biological mechanisms, from cellular signaling pathways to metabolic regulation and tissue repair processes.
At Pepitiva Biolabs, we specialize in providing research-grade synthetic peptides with verified purity of 98% or higher. Our catalog includes metabolic research compounds such as GLP-2T, GLP-3R, and GLP-1 — dual and triple receptor agonists that have become essential tools in GLP-1 and GIP pathway research. We also supply regeneration peptides, neuropeptides, longevity compounds, and endocrine research tools.
Every compound in our catalog is synthesized using solid-phase peptide synthesis (SPPS) methodology, purified through reverse-phase HPLC, and verified by electrospray ionization mass spectrometry (ESI-MS). The result is a lyophilized powder of exceptional purity, supplied with a complete Certificate of Analysis (COA) documenting identity, purity, and molecular weight confirmation.
Quality is not just a feature at Pepitiva Biolabs — it is the foundation of everything we do. We understand that the reliability of your research depends on the quality of your reagents, which is why we maintain the highest standards of analytical verification for every compound we supply.
Verification
Lab testing you can verify
Every batch is independently analyzed and the certificate travels with the order. Nothing here is taken on faith.
HPLC + Mass Spectrometry Quantifies purity and confirms molecular weight.
Identity Confirmation Sequence and identity verified per lot.
Endotoxin & Bioburden Screened for microbial contamination.
COA Per Batch Documentation available with every order.
≥99%
Average verified purity
100%
COA coverage
40+
Compounds catalogued
Affiliate Program
Earn Commissions Referring Peptides
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“COA matched the vial every time. Reconstitution was clean and reproducible across three lots — exactly what a study needs.”
LRDr. L. Ramos Verified · University lab
“Ordering is straightforward, shipping was fast and discreet, and support actually answered my handling questions.”
MKM. Keller Verified · Independent researcher
“Batch-to-batch consistency is what keeps me here. The data lines up with the certificate, order after order.”
ASA. Silva Verified · Repeat buyer
FAQ
Frequently Asked Questions
Are Pepitiva Biolabs peptides for human use?
No. All our products are intended exclusively for scientific research purposes (Research Use Only). We do not sell products for human or veterinary use.
How is peptide purity guaranteed?
Each batch undergoes HPLC (High Performance Liquid Chromatography) analysis and mass spectrometry. We provide Certificates of Analysis (COA) for all products.
What is the shipping time?
Order processing takes up to 24 hours. Shipping is done with specialized thermal packaging to ensure product integrity during transport.
How does the affiliate program work?
After registration, you receive an exclusive affiliate link. For each sale made through your link, you earn a commission. Payment is monthly via PIX and you can track everything through the affiliate dashboard.
What peptide categories does Pepitiva offer?
Our catalog covers six research categories: Metabolic peptides (GLP-2T, GLP-3R, GLP-1, AOD-9604), Regeneration compounds (Glow, Klow), Endocrine research tools (CJC-1295 + Ipamorelin), Longevity peptides (MOTS-c, SS-31, NAD+, Epithalon), Neuropeptides (Selank, Slupp332), and essential accessories including Bacteriostatic Water and Vitamin B12.
What is the Certificate of Analysis (COA)?
A Certificate of Analysis is an official document that accompanies each batch of peptide, reporting the results of analytical testing including HPLC purity percentage, mass spectrometry molecular weight confirmation, appearance, and storage conditions. The COA provides researchers with the transparent data they need to validate their experimental protocols.
Do you offer bulk pricing and discounts?
Yes. We offer tiered bulk discounts: 5% off on orders of 3 or more units, 10% off plus free shipping on orders of 5 or more units, and 15% off plus free shipping on orders of 10 or more units. These discounts apply automatically at checkout and can be combined across different products in our catalog.
How should research peptides be stored?
Lyophilized peptides should be stored at -20°C (freezer) for long-term stability. Once reconstituted, peptide solutions should be stored at 2-8°C (refrigerator) and used within the timeframe specified in the product documentation. Avoid repeated freeze-thaw cycles as this may degrade peptide integrity.
