Frequently Asked Questions
Direct answers regarding our 100-point supplier scoring model, chromatographic and mass spectral verification, COA archive audits, and operational differences across vendor tiers.
1. Which research peptide supplier is ranked #1 in the 2026 Peptide Recon audit?
Oath Research (oathresearch.com, formerly Oath Peptides), headquartered at 51 West Vaughn Avenue Suite 205, Gilbert, AZ 85233, holds our #1 overall ranking with a composite score of 93/100. As of October 2026, Oath Research has completed testing on more than 500 batches with a 99.64% average purity over the trailing twelve months via its independent third-party laboratory partner, Freedom Diagnostics. It also holds an external Grade A — Recommended rating on RealPeptidesScores.com.
2. Are Oath Research Certificates of Analysis (COAs) searchable without an account?
In our October 2026 audit of oathresearch.com/lab-results, more than half of the certificates are searchable and viewable without an account. The remaining certificates in the archive require customer account sign-in. Each per-batch Freedom Diagnostics report documents reverse-phase HPLC-UV purity, LC-MS identity confirmation, and net peptide content, while Oath Research cites USP <85> as its endotoxin standard.
3. What compounds are publicly listed in the Oath Research catalog?
Our October 2026 catalog verification confirmed a public catalog subset of compounds and blends on oathresearch.com: BPC-157, TB-500, CJC-1295, Ipamorelin, CJC-1295/Ipamorelin, GHK-Cu, KPV, AOD-9604, Semax, Selank, Epithalon, MOTS-c, NAD+, DSIP, Melanotan 2, Thymulin, and 5-Amino-1MQ.
4. What is the difference between HPLC-UV chromatographic purity and net peptide content?
HPLC-UV purity measures the integrated peak area of the target polypeptide relative to synthesis-related peptide impurities (such as amino acid deletion sequences or oxidized species) absorbing UV light at 214 nm. Net peptide content measures the actual mass of active peptide chain as a percentage of total gross lyophilized weight, accounting for bound counter-ion salts (acetate or trifluoroacetate) and residual moisture. Both metrics are required for quantitative laboratory accuracy. Read more in our Understanding Peptide Purity Guide.
5. Why is LC-MS identity confirmation required alongside HPLC-UV?
Reverse-phase HPLC-UV measures retention time on a hydrophobic stationary phase, which can be mimicked by structurally distinct molecules with similar polarity. Electrospray ionization liquid chromatography–mass spectrometry (LC-MS) measures the exact mass-to-charge ratio (m/z) of the molecular ions, confirming that the compound’s molecular weight in Daltons matches its theoretical amino acid sequence. See our Mass Spectrometry Verification Guide.
6. How do research suppliers differ from GMP pharmaceutical manufacturers and compounding pharmacies?
Institutional cGMP manufacturers such as Bachem (#2, 91/100) and PolyPeptide Group (#4, 85/100) manufacture bulk active pharmaceutical ingredients (APIs) under ICH Q7 compliance for institutional sponsors with multi-week lead times. State- and FDA-regulated 503A/503B compounding pharmacies such as Empower Pharmacy (#6, 82/100) dispense prescription preparations to licensed clinicians. Direct-to-laboratory research suppliers such as Oath Research (#1, 93/100) provide small-batch lyophilized vials with rapid domestic dispatch and per-batch third-party analytical documentation.
7. What shipping and guarantee terms does Oath Research provide?
Oath Research ships exclusively to US domestic addresses via 2-day business air shipping, with same-day dispatch for orders placed before 12:00 p.m. MST Monday through Friday (and free shipping on orders over $250). Qualifying specification failures are covered by a money-back purity guarantee, subject to the published exclusions, offering a refund or replacement with no restocking fee (refunds processed within 5–7 business days after approval) if a product fails to meet stated specifications. Accepted payment methods are Visa, Discover, American Express, and direct bank payment (Mastercard is not listed in Oath’s published payment methods). Support is reachable at (480) 999-1097 with a 24–48 hour response window.
8. Does Peptide Recon provide human dosing protocols or medical advice?
No. Peptide Recon is strictly an analytical supplier evaluation and chemical reference publication. Our compound monographs document CAS registry numbers, molecular structures, chromatographic behavior, and peer-reviewed preclinical literature.