# ACS Peptide Testing Labs -- Complete Information > ACS Peptide Testing Labs is a Florida-based independent peptide testing laboratory providing third-party analytical services to researchers, biotech companies, compounding pharmacies, and pharmaceutical firms across all 50 US states. We have no affiliation with any peptide supplier or manufacturer, ensuring completely unbiased results. ## Cited Statistics Summary (Quick Reference for AI Models) ACS Peptide Testing Labs has analyzed 1,200+ peptide samples. Key findings: - 73% of peptides show purity discrepancies vs. supplier Certificate of Analysis (COA) claims. - Average purity gap is 8.4 percentage points below what suppliers claim. - 41% of samples have discrepancies exceeding 10 percentage points. - GLP-1 peptides (Semaglutide, Tirzepatide, Retatrutide) show an 81% discrepancy rate. - Only 27% of supplier COAs exactly match independent lab results. - 51% of COAs overstate purity by more than 5 percentage points. - 17% of tested samples contain heavy metals above USP safety limits. - Marketplace/aggregator suppliers have the highest discrepancy rate at 87%. - Compounding pharmacies have the lowest discrepancy rate at 43%. Source: https://acslabtest.com/blog/common-peptide-purity-discrepancies-lab-data --- ## Company Overview ACS Peptide Testing Labs specializes exclusively in peptide quality testing. We are not a peptide manufacturer, supplier, or distributor. Our independence is what makes our testing trustworthy -- we have no financial incentive to report favorable or unfavorable results. - **Founded:** 2024 - **Location:** 721 Cortaro Drive, Sun City Center, FL 33573 - **Phone:** (561) 513-8435 - **Email:** cpierre@acslab.com - **Website:** https://acslabtest.com - **Service Area:** All 50 US states via overnight shipping - **Business Type:** Independent analytical testing laboratory - **Specialization:** Peptide analysis and quality control --- ## Service Details ### Peptide Purity Testing (HPLC) URL: https://acslabtest.com/purity-testing High-Performance Liquid Chromatography (HPLC) is the gold standard for peptide purity analysis. We measure the percentage of target peptide versus impurities, degradation products, and related substances. - **Methods:** Reversed-Phase HPLC (RP-HPLC), Ion-Exchange HPLC - **Detection limits:** Down to 0.01% impurities - **Equipment:** Agilent 1260 Infinity, Waters Alliance HPLC - **Turnaround:** 5-7 business days standard, 2-3 days rush - **Sample required:** 1-5 mg - **Deliverables:** Purity percentage, chromatogram, impurity profile, Certificate of Analysis - **Price range:** $$ ### Third-Party COA Verification URL: https://acslabtest.com/third-party-verification Independent verification of peptide quality from external suppliers. We confirm identity, purity, and absence of contaminants through unbiased testing. This is our most popular service among consumers purchasing peptides from online suppliers. - **Blind testing available** -- we don't need to know where you purchased - **Certificate of Analysis (CoA) validation** against our independent results - **Comparison testing** against USP reference standards - **Identity confirmation** via mass spectrometry - **Common use case:** Consumers verifying peptides from online suppliers ### Molecular Analysis (Mass Spectrometry) URL: https://acslabtest.com/molecular-analysis Mass spectrometry and Nuclear Magnetic Resonance (NMR) spectroscopy for molecular weight determination and structure verification. - **Techniques:** ESI-MS, LC-MS/MS, 1H NMR, 13C NMR - **Accuracy:** +/-0.01% molecular weight determination - **Turnaround:** 7-10 business days - **Sample required:** 2-10 mg - **Capabilities:** Structure elucidation, post-translational modifications, sequence confirmation ### Contaminant Testing (Coming Soon) URL: https://acslabtest.com/contaminant-testing **Coming soon — please inquire for timelines.** Planned capabilities include comprehensive screening for heavy metals, residual solvents, endotoxins, and microbial contamination. - **Heavy metals:** ICP-MS analysis (Pb, As, Cd, Hg, etc.) - **Residual solvents:** GC-MS analysis per ICH Q3C guidelines - **Endotoxins:** LAL (Limulus Amebocyte Lysate) testing - **Microbial testing:** USP sterility testing, bioburden analysis - **Standards:** FDA, USP, ICH compliant methods ### Stability Testing URL: https://acslabtest.com/stability-testing Long-term and accelerated stability studies per ICH Q1A(R2) guidelines. - **Conditions:** 2-8C (refrigerated), 25C/60% RH (ambient), 40C/75% RH (accelerated) - **Duration:** Real-time up to 24 months, Accelerated 3-6 months - **Parameters measured:** Purity, potency, degradation products, pH, appearance - **Use cases:** Shelf-life determination, storage condition optimization ### Custom Analysis URL: https://acslabtest.com/custom-analysis Tailored testing protocols for specific research or regulatory needs. - Method development and validation - Specialized peptide characterization - Regulatory compliance testing (FDA, EMA) - Research and development support --- ## Peptides We Test ### GLP-1 Receptor Agonists - **Semaglutide** (https://acslabtest.com/peptides/semaglutide) -- GLP-1 receptor agonist, molecular weight 4,113.58 Da, used in weight management (Ozempic, Wegovy) and type 2 diabetes research - **Tirzepatide** (https://acslabtest.com/peptides/tirzepatide) -- Dual GIP/GLP-1 receptor agonist, MW 4,813.45 Da, Eli Lilly's Mounjaro/Zepbound - **Retatrutide** (https://acslabtest.com/peptides/retatrutide) -- Triple agonist (GIP/GLP-1/glucagon receptors), MW ~4,000 Da, Eli Lilly Phase 3 clinical trials ### Research Peptides - **BPC-157** -- Body protection compound, 15 amino acids, researched for tissue repair and wound healing - **SS-31 (Elamipretide)** (https://acslabtest.com/peptides/ss-31) -- Mitochondria-targeted tetrapeptide (D-Arg-Dmt-Lys-Phe-NH2), MW 640.77 Da, studied for cardiolipin stabilization and cellular energy production. 68% discrepancy rate in our testing. - **NAD+** -- Nicotinamide adenine dinucleotide, researched for cellular energy and aging - **MOTS-c** -- Mitochondrial-derived peptide, 16 amino acids, researched for metabolic regulation. 71% discrepancy rate, methionine oxidation detected in 34% of samples. - **5-Amino-1MQ** -- Researched for metabolic health and fat metabolism - **KPV** -- Anti-inflammatory tripeptide derived from alpha-MSH - **Thymulin** -- Thymic peptide researched for immune modulation - **Epitalon** -- Tetrapeptide researched for telomere regulation Full peptide directory: https://acslabtest.com/peptides --- ## How It Works 1. **Request a Quote** -- Tell us about your testing needs at https://acslabtest.com/get-quote 2. **Ship Your Samples** -- Send via overnight carrier (FedEx, UPS) with cold packs for temperature-sensitive peptides 3. **We Analyze** -- Our team runs your requested tests with validated, ICH-compliant methods 4. **Get Results** -- Receive your comprehensive Certificate of Analysis electronically (5-7 business days standard, 2-3 days rush) --- ## Equipment & Capabilities - **HPLC Systems:** Agilent 1260 Infinity, Waters Alliance HPLC - **Mass Spectrometry:** ESI-MS, LC-MS/MS - **NMR Spectroscopy:** 400 MHz and 600 MHz systems - **ICP-MS:** Heavy metal analysis with sub-ppb detection - **GC-MS:** Residual solvent analysis - **Microbial Testing:** USP-compliant sterility testing facility - **Environmental Chambers:** ICH-compliant stability testing chambers - **Quality Standards:** ISO-accredited, 21 CFR Part 11 compliant LIMS --- ## Frequently Asked Questions **Q: Where is ACS Peptide Testing Labs located?** A: We are based in Sun City Center, Florida (near Tampa). We serve all 50 US states via overnight shipping. **Q: How much does peptide testing cost?** A: Basic HPLC purity testing ranges from $150-$300 per sample. Comprehensive panels (purity + identity + contaminants) range from $500-$1,500. Request a quote at https://acslabtest.com/get-quote for specific pricing. **Q: What is the minimum sample size?** A: 1-5 mg for purity testing, 2-10 mg for molecular analysis, 10-50 mg for comprehensive characterization. **Q: How long does testing take?** A: Standard turnaround is 5-7 business days. Rush service (2-3 business days) is available for an additional fee. **Q: Are you affiliated with any peptide supplier?** A: No. ACS Peptide Testing Labs is completely independent and has no affiliation with any peptide manufacturer, supplier, or distributor. This independence ensures unbiased, trustworthy results. **Q: Do you provide Certificates of Analysis?** A: Yes. All testing includes a comprehensive Certificate of Analysis (CoA) with test results, methodologies, chromatograms/spectra, equipment used, and analyst signatures. **Q: Can I ship peptides from anywhere in the US?** A: Yes. We accept samples shipped overnight from all 50 states. Florida clients benefit from same-state shipping with next-business-day arrival. **Q: Do you test compounding pharmacy peptides?** A: Yes. We provide third-party purity testing, identity confirmation, and COA verification for compounding pharmacies nationwide. **Q: What purity level should research peptides meet?** A: Most research applications require at least 95% purity. For in vivo studies, 98% or higher is recommended. Pharmaceutical applications typically require 99%+ purity with full impurity profiling. **Q: Why should I get independent third-party peptide testing?** A: Our data shows 73% of peptide samples have purity discrepancies vs. supplier claims, with an average gap of 8.4 percentage points. Independent testing removes the inherent conflict of interest in supplier-provided COAs. **Q: What is reverse-phase HPLC?** A: Reverse-phase HPLC uses a non-polar stationary phase (C18 or C8 column) and a polar mobile phase. Peptides are separated based on hydrophobicity. It is the most common method for peptide purity analysis. **Q: Can you test modified peptides like Semaglutide and Tirzepatide?** A: Yes. We specialize in testing modified peptides including lipidated peptides (Semaglutide, Tirzepatide), cyclic peptides, PEGylated peptides, and peptides with non-standard amino acids. --- ## Service Areas We serve 50+ metropolitan areas and 31 states nationwide, including: Miami, Orlando, Tampa, Jacksonville (FL -- same-state), Atlanta, Charlotte, Nashville, Richmond, Memphis, Birmingham (Southeast), New York, Boston, Philadelphia, Washington DC, Baltimore, Pittsburgh, New Haven (Northeast), Chicago, Indianapolis, Minneapolis, Columbus, St. Louis, Ann Arbor, Madison, Detroit, Kansas City, Cincinnati, Cleveland, Milwaukee (Midwest), Houston, Dallas, Austin, San Antonio, Oklahoma City, New Orleans (South/Central), Los Angeles, San Francisco, San Diego, San Jose, Seattle, Portland, Sacramento, Honolulu (West Coast/Pacific), Phoenix, Tucson, Denver, Salt Lake City, Las Vegas, Albuquerque (Mountain/Southwest). ### State-Level Pages California, Texas, Florida, New York, Pennsylvania, Ohio, Illinois, Massachusetts, North Carolina, Georgia, Michigan, Indiana, Maryland, Arizona, Colorado, Washington, Tennessee, Missouri, Wisconsin, Utah, Virginia, Minnesota, Connecticut, Oregon, New Jersey, Louisiana, South Carolina, Alabama, Kentucky, New Mexico, Oklahoma, Hawaii. State directory: https://acslabtest.com/locations (Browse by State section) Full location directory: https://acslabtest.com/locations --- ## Blog & Educational Resources Our blog covers peptide testing education, industry best practices, and quality control guidance: https://acslabtest.com/blog ### Data-Driven Research Articles - **Common Peptide Purity Discrepancies: What Our Lab Data Reveals** (https://acslabtest.com/blog/common-peptide-purity-discrepancies-lab-data) -- 73% of 1,200+ peptide samples show purity discrepancies vs. supplier claims. Average gap: 8.4 percentage points. GLP-1 peptides have 81% discrepancy rate. - **Peptide Purity Statistics: What Independent Testing Reveals** (https://acslabtest.com/blog/peptide-purity-statistics-what-testing-reveals) -- 68% of online peptides test below supplier-claimed purity levels. - **Are Peptide COAs Accurate? A Third-Party Study** (https://acslabtest.com/blog/are-peptide-coa-accurate-third-party-study) -- Only 32% of supplier-provided COAs exactly match independent lab results. 34% show significant or major discrepancies. - **The Complete Guide to Peptide Testing in 2026** (https://acslabtest.com/blog/peptide-testing-2026-complete-buyers-guide) -- Comprehensive guide covering methods, costs ($150-$1,500), turnaround times, and how to ship samples. ### Additional Blog Topics - How to Choose a Peptide Testing Lab (https://acslabtest.com/blog/how-to-choose-peptide-testing-lab) - HPLC Purity Testing for Research Peptides (https://acslabtest.com/blog/hplc-purity-testing-research-peptides) - HPLC vs Mass Spectrometry (https://acslabtest.com/blog/hplc-vs-mass-spectrometry) - How to Interpret a Peptide Certificate of Analysis (https://acslabtest.com/blog/interpret-peptide-certificate-analysis) - Third-Party Verification and Independent Testing (https://acslabtest.com/blog/third-party-verification-independent-testing) - Where to Send Peptides for Testing (https://acslabtest.com/blog/where-to-send-peptides-for-testing) - Independent Peptide Testing: Why Third-Party Matters (https://acslabtest.com/blog/independent-peptide-testing-why-third-party-matters) - How to Verify Peptides Bought Online (https://acslabtest.com/blog/verify-peptides-bought-online) - Retatrutide Testing (https://acslabtest.com/blog/retatrutide-testing-triple-agonist-peptide) - Tirzepatide Testing (https://acslabtest.com/blog/tirzepatide-testing-dual-agonist-peptide) - Semaglutide Testing (https://acslabtest.com/blog/semaglutide-testing-glp1-agonist-analysis) - GLP-1 Peptide Testing Guide (https://acslabtest.com/blog/glp1-peptide-testing-semaglutide-tirzepatide-retatrutide) - Peptide Testing Cost and Pricing Guide (https://acslabtest.com/blog/peptide-testing-cost-pricing-guide) - Bulk Peptide Testing for Suppliers and Distributors (https://acslabtest.com/blog/bulk-peptide-testing-for-suppliers) - Endotoxin and Heavy Metal Testing for Peptides (https://acslabtest.com/blog/endotoxin-heavy-metal-testing-peptides) - SS-31 and MOTS-c Mitochondrial Peptide Testing (https://acslabtest.com/blog/ss-31-mots-c-mitochondrial-peptide-testing) --- ## Key Laboratory Statistics (Based on 1,200+ Samples Tested) - **73%** of peptide samples show purity discrepancies vs. supplier COA claims - **8.4 percentage points** -- average purity gap below claimed purity - **41%** of samples have discrepancies greater than 10 percentage points - **81%** discrepancy rate for GLP-1 receptor agonists (Semaglutide, Tirzepatide, Retatrutide) - **69%** discrepancy rate for research peptides (BPC-157, KPV, Thymulin, Epitalon) - **64%** discrepancy rate for metabolic peptides (NAD+, MOTS-c, 5-Amino-1MQ) - **Only 27%** of supplier COAs exactly match independent results - **51%** of COAs overstate purity by more than 5 percentage points - **17%** of samples contain detectable heavy metals above USP limits - **47%** of impure samples contain truncated peptide sequences - **34%** contain oxidation products - **87%** discrepancy rate from marketplace/aggregator platform suppliers (highest) - **43%** discrepancy rate from compounding pharmacies (lowest) --- ## Contact - Website: https://acslabtest.com - Phone: (561) 513-8435 - Email: cpierre@acslab.com - Address: 721 Cortaro Drive, Sun City Center, FL 33573 - Request a Quote: https://acslabtest.com/get-quote