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CertaPeptides

Quality Assurance

5-Point Testing Protocol

Every batch of every peptide undergoes independent third-party testing. No exceptions. Full results documented in the Certificate of Analysis included with your order.

262
Total Batches Tested
98.9%
Avg. HPLC Purity
100%
Pass Rate
3
Testing Labs

Testing Methodology

1

HPLC Purity Analysis

High-Performance Liquid Chromatography

Separates peptide components to measure purity percentage. Our acceptance criteria: ≥98% main peak purity.

What this tells you: The exact percentage of your target peptide versus impurities, degradation products, and synthesis byproducts.

2

Mass Spectrometry

ESI-MS / MALDI-TOF

Confirms the molecular weight matches the target peptide sequence. Detects truncations, deletions, and modifications.

What this tells you: Whether the peptide is actually what it claims to be — correct amino acid sequence and molecular identity.

3

Endotoxin LAL Testing

Limulus Amebocyte Lysate assay

Detects bacterial endotoxins (lipopolysaccharides) that can confound research results, especially in cell-based assays.

What this tells you: Whether the peptide is free from bacterial contamination that could introduce artifacts in sensitive experiments.

4

Bioburden Testing

Microbial enumeration per USP <61>

Counts total aerobic microbial count (TAMC) and total yeast/mold count (TYMC) to ensure microbiological safety.

What this tells you: The microbial load of the product — critical for any research involving cell cultures or biological systems.

5

Visual & Lyophilization QC

Manual inspection + moisture analysis

Verifies proper lyophilization (freeze-drying), correct fill weight, intact seal, and absence of discoloration or particulates.

What this tells you: Whether the peptide was properly manufactured, dried, and packaged for maximum stability and shelf life.

Batch Purity Records

Showing all 262 tested batches. Each record represents an independent third-party lab analysis. All peptides must achieve ≥98.0% HPLC purity to pass.

262 records · Click a row to view full analytical data

Batch #Product HPLC Purity Test Date Status
CP-2603-9104Hexarelin Acetate99.8%2026-03-07PASS
CP-2603-2158Oral BPC-157 + TB-500 Blend 1000mcg98.2%2026-03-06PASS
CP-2603-6481Anti-Aging Research Stack98.6%2026-03-05PASS
CP-2603-9901Hexarelin Acetate98.6%2026-03-04PASS
CP-2603-6150GW-501516/Cardarine 10mg99.4%2026-03-03PASS
CP-2603-7175Pancragen 20mg98.4%2026-03-03PASS
CP-2603-2526P21 10mg98.7%2026-03-02PASS
CP-2603-6552Oral BPC-157 + TB-500 Blend 1000mcg99.0%2026-03-01PASS
CP-2603-8209Healing Research Stack99.2%2026-03-01PASS
CP-2602-4318Sermorelin Acetate98.1%2026-02-28PASS
CP-2602-1888SLU-PP-332 Capsule 100mg99.2%2026-02-27PASS
CP-2602-2610Tirzepatide99.0%2026-02-26PASS
CP-2602-4119Hyaluronic Acid 5mg99.2%2026-02-25PASS
CP-2602-7274Epitalon 50mg Pre-Mixed Pen98.5%2026-02-23PASS
CP-2602-4079Selank99.5%2026-02-23PASS
CP-2602-4097Cartalax 20mg98.3%2026-02-22PASS
CP-2602-1545BPC-157+TB-500 10mg98.9%2026-02-21PASS
CP-2602-9263BPC-15799.6%2026-02-21PASS
CP-2602-4351BAM15 Capsule 50mg98.3%2026-02-20PASS
CP-2602-6074Prostamax 20mg99.6%2026-02-20PASS
CP-2602-6784Glow Blend (BPC-157 + GHK-Cu + TB-500) 70mg99.2%2026-02-20PASS
CP-2602-4607Retatrutide98.2%2026-02-19PASS
CP-2602-7329HCG99.4%2026-02-19PASS
CP-2602-4479Retatrutide Research Starter Kit98.3%2026-02-18PASS
CP-2602-8027Enclomiphene99.3%2026-02-18PASS

Certificate of Analysis

Every order includes a Certificate of Analysis (COA) — an official document from an independent laboratory that verifies the identity, purity, and quality of your specific batch.

Each COA contains HPLC chromatograms, mass spectra, endotoxin results, and a unique batch number you can verify with us at any time.

≥98% Purity Guarantee

If any product fails to meet our ≥98% purity standard, we'll replace it or issue a full refund. No questions asked. Your research depends on quality — and so does our reputation.