PSR SUPPLIER REPORT
Independent review of supplier documentation, analytical testing evidence, lot traceability, pricing visibility, and company transparency.
REPORT STATUS
Initial Review
LAST REVIEWED
September 2026
SUPPLIER TYPE
Research-use supplier
LOCATION LISTED
Dallas, TX USA
AFFILIATE DISCLOSURE
PSR may receive compensation when visitors access Offline Peptides through certain referral links. Affiliate relationships do not determine PSR scores, methodology, findings, rankings, or editorial conclusions.
PRELIMINARY PSR ASSESSMENT
87 / 100 · STRONG TRANSPARENCY
WEIGHTED OVERALL PSR TRANSPARENCY SCORE
87 / 100
Preliminary assessment pending continued documentation review. Scores reflect transparency evidence and are not a certification, guarantee, safety determination, or human-use recommendation.
DOCUMENTATION QUALITY · 25%
92 / 100
TESTING EVIDENCE · 25%
90 / 100
LOT TRACEABILITY · 20%
93 / 100
PRICING TRANSPARENCY · 15%
70 / 100
SUPPLIER TRANSPARENCY · 15%
82 / 100
EXECUTIVE SUMMARY
A neutral reading of the public record.
Offline Peptides maintains a substantial public documentation footprint, including a searchable Certificate of Analysis library, batch-specific identifiers, reported purity results, test dates, downloadable analytical reports, research-use policies, and publicly listed contact information.
For this initial review, PSR found that the supplier provides a relatively clear path from product name to batch-level documentation. Offline states that its analytical testing is performed through external laboratories and that historical batch records remain accessible as inventory changes.
The strongest transparency signals are its publicly accessible COA archive and lot-specific documentation. Areas requiring additional context include pricing accessibility, complete chain-of-custody verification, and consistency across certain supplier policies and disclosures.
PSR’s assessment reflects documentation transparency and evidence availability. It is not a certification or determination of product safety, efficacy, regulatory status, or suitability for human use.
01 / DOCUMENTATION REVIEW
Documentation Quality
POSITIVE EVIDENCE
• Public searchable COA library
• Downloadable batch-specific analytical reports
• Product and quantity identified
• Batch / lot identifiers displayed
• Reported purity displayed
• Testing dates displayed
• Historical batch documentation stated as retained
• Public research-use policies
• Public phone, email, and Dallas contact information
OPEN QUESTIONS
Whether historical COAs remain permanently accessible · Whether documentation coverage exists for every currently sold product and batch · Whether all testing panels described by the supplier appear in corresponding public certificates
PSR OBSERVATION
The supplier provides substantially more publicly accessible documentation than a storefront that relies only on general purity claims.
02 / TESTING EVIDENCE
PSR reviewed publicly linked Offline Peptides certificates from multiple external laboratories for this initial assessment. The reviewed documents include lot identifiers, received and report dates, HPLC purity data, LC-MS or mass-spectral identity confirmation, and sample-specific analytical results.
Laboratories Observed — Freedom Diagnostics; Krause Analytical · Client / Supplier — Offline Peptides · Lot Number — Present · HPLC Purity — Present · LC-MS / Mass Spectral Identity — Present · Received Date — Present · Report Date — Present · Chromatogram — Present · Sample-Specific Results — Present
PSR NOTE
PSR reviewed sample certificates from Freedom Diagnostics and Krause Analytical. These observations apply only to the specific submitted samples represented by those reports and should not be generalized to every Offline Peptides product or batch.
SUPPLIER-STATED
Claims made by Amino Science that PSR has not independently substantiated beyond supplier-provided information.
DOCUMENT OBSERVED
Information directly displayed in the reviewed laboratory certificates or public supplier documentation.
PSR CONCLUSION
A preliminary interpretation limited to the available public evidence and subject to continued documentation review.
03 / SAMPLE COA OBSERVATIONS
CERTIFICATE 01 / DOCUMENT OBSERVED
BPC-157 10mg
Laboratory — Freedom Diagnostics · Lot — OP-BC10-0826 · Received — August 17, 2026 · Reported — August 22, 2026 · Reported HPLC Purity — 99.42% · Identity — Confirmed · Measured Net Content — 14.12 mg · Testing — HPLC-UV / LC-MS
CERTIFICATE 02 / DOCUMENT OBSERVED
GLP-3R 30mg
Laboratory — Krause Analytical · Lot — OP-RT30-0826 · Received — August 17, 2026 · Reported — August 26, 2026 · Reported HPLC Purity — 99.9% · Identity — Mass Spectral Match Confirmed · Measured Net Content — 25.4 mg · Testing — HPLC-UV-MS
These observations apply only to the specific submitted samples represented by the reviewed laboratory reports. Results from individual samples should not be generalized to every Offline Peptides product, vial, or batch. PSR reports laboratory findings as documented and does not treat purity, identity, or measured-content results as proof of product safety, regulatory compliance, or suitability for human or animal use.
04 / LOT TRACEABILITY
Lot Traceability
Offline Peptides’ public COA library ties analytical reports to specific product names, quantities, batch numbers, and test dates. The supplier states that each report corresponds to a specific production lot and that historical batch documentation is retained as inventory changes.
Positive Indicators
• Product name shown
• Product quantity shown
• Batch / lot number shown
• Test date shown
• Downloadable batch-specific COA
• Lot identifier repeated in reviewed laboratory documentation
• Historical batch records stated as retained
Limitation
PSR has not independently verified the complete chain of custody from manufacturing through laboratory submission and final inventory.
05 / PRICING VISIBILITY
Pricing Visibility
Offline Peptides publicly displays prices on many product pages and currently shows product ranges, package strengths, multi-vial discounts, shipping exclusions, and inventory status. However, its Terms and Conditions also state that prices are displayed only to verified account holders and that pricing may vary based on account status or access level. PSR treats that inconsistency as a limitation in complete pricing transparency.
PSR Observation — Offline Peptides provides useful public pricing signals, including per-product pricing, strength options, multi-vial discounts, and shipping thresholds. However, supplier terms indicate that pricing visibility and adjustments may vary by account status, making fully standardized supplier-to-supplier price comparisons more difficult.
06 / COMPANY & SUPPLIER TRANSPARENCY
Legal entity — Offline Peptides, LLC · State of organization — Wyoming · Public contact location — Dallas, Texas · Public phone — Available · Public email — Available · Website legal policies — Available · Research-use disclaimer — Available
PSR Observation — Offline Peptides provides identifiable business, contact, policy, and research-use information. Public records and supplier-facing pages show different historical and current addresses, which PSR treats as an address-context issue rather than evidence of wrongdoing. Business, mailing, operating, trademark, and registered addresses can differ.
ITEMS REQUIRING CONTEXT
Historical address differences · Wyoming legal entity with Texas public contact location · Public policy language should be monitored for consistency over time
07 / EVIDENCE CLASSIFICATION
VERIFIED IN PUBLIC DOCUMENTATION — PSR directly observed Offline Peptides’ public COA library, batch/lot identifiers, testing dates, HPLC purity data, LC-MS or mass-spectral identity information, public contact information, research-use policies, and pricing on current product pages. SUPPLIER-STATED — Offline Peptides states that historical batch documentation is retained, reports correspond to specific production lots, external laboratories are used for analytical testing, and prior-batch documentation can be requested when no longer shown publicly. NOT DETERMINED — PSR has not independently established complete chain of custody, whether every active inventory lot has public documentation, whether every product receives the same testing panel, or whether pricing is identical for all account types.
08 / BALANCED ASSESSMENT
DOCUMENTATION STRENGTHS
Public searchable COA library · Batch-specific analytical reports · Lot identifiers on reviewed certificates · HPLC and LC-MS / mass-spectral evidence · Testing dates displayed · Public contact information · Public legal and research-use policies · Product pricing visible on current product pages
AREAS FOR FURTHER REVIEW
Complete chain-of-custody verification · Public COA coverage across all active inventory · Consistency of testing panels across products · Pricing visibility across different account types · Long-term historical certificate availability · Policy and age-restriction consistency · Verification of supplier-stated production and testing practices
PSR ASSESSMENT
Preliminary PSR Transparency Score: 87 / 100 — Strong Transparency
Offline Peptides provides a relatively strong level of public documentation, including a searchable COA library, lot-specific analytical reports, identifiable external laboratory evidence, testing dates, public contact information, and current product pricing signals. These features support a strong preliminary transparency assessment.
PSR does not treat the existence of a COA, high reported purity result, or identity confirmation as proof of product safety, regulatory compliance, complete chain of custody, or suitability for human or animal use. The primary areas limiting a higher score are incomplete independent chain-of-custody verification, uncertainty around full catalog testing coverage, and limitations in completely standardized pricing visibility.
09 / SOURCES REVIEWED
Offline Peptides official website - Offline Peptides public COA library - Offline Peptides contact/support page - Offline Peptides Terms & Conditions - Reviewed laboratory COAs from Freedom Diagnostics - Reviewed laboratory COAs from Krause Analytical
DISCLAIMER
PSR evaluates supplier transparency and publicly available documentation for informational and research purposes. A PSR score is not a certification, laboratory guarantee, medical recommendation, safety determination, regulatory approval, or guarantee of product identity, purity, efficacy, legality, or suitability for human or animal use. Laboratory observations apply only to the specific submitted samples represented by the reviewed reports.