§ ANALYTICAL LABORATORY · INDEPENDENT● 32 TESTS PROCESSED · CZECH REPUBLIC
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● ANALYTICAL LABORATORY · INDEPENDENT

liquilabs

Prague · CZECH REPUBLIC

Family-owned Czech analytical laboratory in Prague providing peptide purity, identity, endotoxin, heavy metals, and elemental impurity analysis via HPLC-UV, HPLC-MS, ICP-MS, AAS, and GC methods. USP-aligned (endotoxin per USP <85>, elemental impurities per USP <232>).

32
Tests processed
Visit lab ↗
Tests on file
32
Avg HPLC purity tested
96.9%
Turnaround
Varies
ISO 17025 accredited
No
⚠
No ISO/IEC 17025 accreditation on file
liquilabs is not currently listed as ISO/IEC 17025 accredited — the international standard for testing and calibration laboratories. This is not unusual in the peptide testing market (most listed labs lack it). Accredited results carry more regulatory weight in formal contexts. Read about lab accreditation standards →

About liquilabs

Czech-based family-owned analytical laboratory in Prague providing peptide content, purity, endotoxin, bioburden, and heavy metal testing via HPLC-UV, HPLC-MS, ICP-MS, and AAS across 6 industry sectors.

What sets liquilabs apart

  • ✓Broadest analytical method menu of any EU lab in the Peptigrity index — HPLC-UV, HPLC-MS, ICP-MS (heavy metals), AAS (atomic absorption spectroscopy), GC, UV/VIS spectroscopy, and total organic carbon analysis. Coverage spans purity, identity, contamination, and structural verification without subcontracting.
  • ✓USP-aligned compendial methods — endotoxin per USP <85> and elemental impurities per USP <232>. Methods are documented against United States Pharmacopeia chapters used in pharmaceutical-grade analysis, rare in the peptide testing market.
  • ✓Stability study capability — Liquilabs has run published accelerated stability studies on research peptides (including BPC-157 under elevated temperature and humidity conditions). Useful for vendors and researchers needing shelf-life and shipping-stability data.
  • ✓Family-owned with long operating history — direct continuity of ownership and analytical staff, unusual in the peptide testing market.
Honest disclosures
  • No publicly listed ISO/IEC 17025 accreditation. Some vendor pages reference Liquilabs as "accredited," but the lab's own materials do not publicly claim ISO accreditation, and no certificate is documented. Buyers requiring formally accredited results for regulatory submissions should request current accreditation status directly.
  • Primary scope is food supplements, cosmetics, and biotechnology — peptide testing is one segment of a broader analytical portfolio rather than a peptide-only specialization.
  • Pricing is not published on the website — quoted per submission.

Services offered

Peptide content & purity
HPLC-UV / HPLC-MS
Quantifies peptide content and purity using two-instrument approach.
Endotoxin screening
USP <85> / LAL
Bacterial endotoxin detection per USP <85>.
Elemental impurities
USP <232> / ICP-MS
Elemental impurity analysis per USP <232> compendial chapter.
Heavy metal analysis
ICP-MS / AAS
Trace metal contamination detection — useful for samples sourced from less-regulated supply chains.
Accelerated stability studies
Multi-instrument
Published stability studies on research peptides (e.g. BPC-157) — analytical depth most peptide labs cannot offer.

Lab information

Capabilities
◆ Testing methods
  • Peptide content and purity determination via HPLC-UV and HPLC-MS
  • Endotoxin testing for peptide batch cleanliness verification
  • Microbiological bioburden analysis (TAMC and TYMC)
  • Heavy metal determination (lead, cadmium, mercury, arsenic) via ICP-MS and AAS per ICH Q3D
  • Biotechnology product quality control and composition analysis
  • Food industry chemical and nutritional testing
  • Dietary supplement analysis
  • Cosmetics product testing
  • Custom analytical method development and validation
  • Biofuel production analysis (FAME and bioethanol)
  • No publicly listed ISO/IEC 17025 accreditation, certifications, or licenses
◆ Accreditations
  • Community-listed
◆ Payments
  • Card
  • Crypto
◆ Turnaround
  • Varies

What they test

◆ PEPTIDE CATEGORIES TESTED · Σ = 32
Growth Hormone28%
Weight Loss & Metabolic16%
Immune Support & Longevity16%
Tissue Repair & Healing13%
Skin, Anti-Aging & Cosmetic13%
Cognitive Enhancement & Neuroprotection9%

Tests processed

32 total · 10 recent
Date
Peptide
Shop
Purity
Apr 8, 2026
BPC-157peakpeptide.com
99.80%
Mar 26, 2026
Retatrutide
99.80%
Mar 13, 2026
GHK-Cu
99.80%
Mar 13, 2026
EPITHALON
98.80%
Feb 13, 2026
CJC-1295 with DAC
99.40%
Jan 29, 2026
BPC-157
97.78%
Jan 29, 2026
Mod GRF 1-29
99.80%
Jan 29, 2026
Retatrutide
99.80%
Jan 29, 2026
Thymosin-Alpha 1 (A1)
99.10%
Jan 29, 2026
Ipamorelin
100.00%
Show all 32 tests →

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Contact information

§ HOW TO REACH LIQUILABS
Website
liquilabs.cz ↗
Order tests & submit samples
Location
Prague, Czech Republic
CZECH REPUBLIC

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