Weighted factor result: 7.4/10, published as 7.5/10.
COA evidenceCOA quality 7.5/10✓70 of 70 public reports verifiedCOA quality 7.5/10 · 70 of 70 public reports verified · 54 exact product-and-strength controls
Yes. Peptides Lab UK is an operating United Kingdom research-material storefront. We rate Peptides Lab UK 7.5/10. PeptidePrices submitted every batch number the storefront publishes to the Optima Labs verification portal: 72 of the 75 products carry a batch number, those products resolve to 70 distinct batches, and all 70 returned a certificate that names Peptides Lab UK - peptideslabuk.com as the client. Each record prints FTIR, NMR, and HPLC panels and a purity specification of 99.1% or better. The certificates state a specification rather than a measured purity, report no measured content, and come from a laboratory whose registration and accreditation claims PeptidePrices could not corroborate, which caps COA practices at 7.5. The store lists 91 in-stock product-and-strength rows across 65 compounds, quotes in pounds sterling, takes card, bank transfer, and UK Open Banking, ships inside the United Kingdom and to the European Union on published terms, and accepts returns of sealed, unopened products within 14 days of delivery. No independent customer-review record exists, so reputation holds at 6.
Evidence summary
What PeptidePrices found
We rate Peptides Lab UK 7.5/10. All 70 distinct batch numbers published on the storefront returned an Optima Labs certificate, every certificate names Peptides Lab UK as the printed client, and each record carries FTIR, NMR, and HPLC panels.
The certificates state a purity specification of 99.1% or better rather than a measured result, and none reports measured content. Three products publish no batch number, and the issuing laboratory's registration and accreditation claims are not corroborated, so COA practices score 7.5. No independent customer-review record exists, which holds reputation at 6. The store's shipping, returns, and checkout terms are clear, and transparency and operations score 8/10 each.
01
Batch certificate program
Peptides Lab UK runs a batch certificate program through Optima Labs, which describes itself as a United Kingdom laboratory at Aston Science Park, Birmingham. PeptidePrices submitted every batch number the storefront publishes to the laboratory's verification portal. Seventy-two of the 75 products carry a batch number; those products resolve to 70 distinct batches, and all 70 returned a certificate. Every certificate names Peptides Lab UK - peptideslabuk.com as the client and prints the product ID, batch number, product name, CAS number, synonyms, formula, solubility, shipping condition, storage, specification, purity, lab test number, approver, and test and retest dates. All 70 records carry FTIR, NMR, and HPLC panels. GCMS appears on the form but is checked on none of them. Sixty-nine certificates state a purity specification of 99.1% or better, which is a threshold rather than a measured result, and the Bacteriostatic Water certificate states no purity at all. No certificate reports measured content. Sixty-four certificates share a test date of April 1, 2025 and a retest date of April 1, 2027; three are dated April 1, 2026, and three carry other 2025 and 2026 dates. One signatory approved all 70. The COA factor is 7.5/10. The archive is real and batch-verifiable, and two limits hold the factor down: the analytical content is a specification sheet rather than a measured report, and Optima Labs' own registration and accreditation claims could not be corroborated.
02
Review record
PeptidePrices established no independent exact-domain customer-review record for Peptides Lab UK on September 20, 2026. The order count and star graphics on the storefront are vendor marketing claims rather than customer reviews. The reputation factor is 6/10: the storefront publishes a complete operating record, a registered office, contact details, and full shipping, returns, and policy pages, and it carries no independent customer-review aggregate and no company registration number.
03
Catalog, shipping, and returns
The public store catalog listed 75 products. PeptidePrices normalized 112 product-and-strength price rows across 65 compounds and dropped diluents, an unqualified follistatin listing, and codenames with no exact compound identity. Ninety-one were in stock and are listed here; the other 21 were out of stock. The store charges in pounds sterling, and PeptidePrices converts those prices to US dollars at the rate published on September 20, 2026 (1 GBP = 1.337252 USD). Royal Mail Tracked 24 costs 4.99 GBP and is free above 75 GBP. Signed Special Delivery costs 8.99 GBP. EU delivery by DHL Express or UPS starts at 12.99 GBP. Orders placed before 14:00 on a working day ship the same day. Sealed, unopened products may be returned within 14 days of delivery. The checkout offers an on-site card form, two separately labelled manual bank transfers, and UK Open Banking, which the store advertises at 4% off the order. Operations score 8/10.
04
Company disclosure and rating
The store publishes the registered office Peptides Lab UK, 71-75 Shelton Street, London, England, WC2H 9JQ, and the contact address research@peptideslabuk.com. The domain was registered on June 27, 2025. The footer also links to a separate Ireland storefront that describes the same certificate program. The store publishes no company registration number, and the registered office is a shared address service rather than a laboratory or warehouse. Optima Labs registered its domain on July 5, 2025. PeptidePrices found no Companies House registration for the laboratory at its published address and could not corroborate the storefront's ISO 9001 and UKAS claims, so neither is treated as established. PeptidePrices set the factor scores on September 20, 2026: COA practices 7.5, reputation 6, transparency 8, and operations 8, a weighted result of 7.4 published as 7.5. Affiliate status does not change the score.
All 70 distinct batch numbers published on the storefront returned a certificate from the Optima Labs verification portal
Every returned certificate names Peptides Lab UK - peptideslabuk.com as the printed client
Each certificate prints the product ID, batch number, product name, CAS number, synonyms, formula, solubility, shipping condition, storage, specification, lab test number, approver, and test and retest dates
All 70 certificates carry FTIR, NMR, and HPLC panels and a purity specification of 99.1% or better
The store lists 91 in-stock product-and-strength rows across 65 compounds
Prices are quoted in pounds sterling on the storefront and converted to US dollars at a dated rate for comparison
The checkout shows card payment, bank transfer, and UK Open Banking, shipping terms list carriers, prices, and cut-offs, and sealed, unopened products may be returned within 14 days
The store publishes a registered office, a contact email, shipping, returns, terms, privacy, and research-use policies
Watch-outs
The certificates state a purity specification rather than a measured result, and none reports measured content, which caps COA practices at 7.5
Three of the 75 products publish no batch number and therefore carry no certificate: the GLP 3 Compound (RT3) and GLP 2 Compound (TRIZ2) listings and Pinealon 10 mg
Optima Labs dates its domain to July 5, 2025; PeptidePrices found no Companies House registration for the laboratory and could not corroborate the storefront's ISO 9001 and UKAS claims, which is the main reason the COA factor sits at 7.5
Batch certificates resolve through the laboratory portal, so each batch has to be looked up individually rather than read from a document archive on the storefront
PeptidePrices established no independent exact-domain customer-review record on September 20, 2026, which holds reputation at 6
Six listed compounds were fully out of stock at the last check
The storefront order-count and star graphics are vendor marketing claims with no supporting record
The published registered office is a shared London registered-office address rather than a laboratory or warehouse
Details
Ships toUnited Kingdom and the European Union; no United States shipping published
Payment methods
Card (Visa accepted)Bank transfer (BACS)Open Banking (UK only)
PurityAll 70 distinct batch numbers published on the storefront returned an Optima Labs certificate naming Peptides Lab UK as the client, with FTIR, NMR, and HPLC panels and a purity specification of 99.1% or better.
ShippingThe store charges in pounds sterling. PeptidePrices converts its prices to US dollars at the rate published on September 20, 2026 (1 GBP = 1.337252 USD) so the rows stay comparable with the rest of the index; the vendor charges the pound price at checkout. The shipping page lists Royal Mail Tracked 24 at 4.99 GBP, free over 75 GBP, and signed Special Delivery at 8.99 GBP, with same-day dispatch before 14:00 on working days. The published EU destinations are Ireland, Germany, the Netherlands, France, and other EU countries, shipped by DHL Express or UPS from 12.99 GBP. The checkout shows an on-site card form, two separately labelled manual bank transfers, and UK Open Banking at 4% off the order. Sealed, unopened products may be returned within 14 days of delivery.
Reputation
No PeptidePrices reader reviews yet.
Independent external review aggregate not established yet.
Peptides Lab UK scores 7.5/10 on PeptidePrices' evidence rubric: 40% COA practices, 20% community reputation, 20% transparency, and 20% operations. Affiliate relationships are disclosed on this page and are not a scoring factor.
Where does Peptides Lab UK ship?
Peptides Lab UK ships to United Kingdom and the European Union; no United States shipping published. The store charges in pounds sterling. PeptidePrices converts its prices to US dollars at the rate published on September 20, 2026 (1 GBP = 1.337252 USD) so the rows stay comparable with the rest of the index; the vendor charges the pound price at checkout. The shipping page lists Royal Mail Tracked 24 at 4.99 GBP, free over 75 GBP, and signed Special Delivery at 8.99 GBP, with same-day dispatch before 14:00 on working days. The published EU destinations are Ireland, Germany, the Netherlands, France, and other EU countries, shipped by DHL Express or UPS from 12.99 GBP. The checkout shows an on-site card form, two separately labelled manual bank transfers, and UK Open Banking at 4% off the order. Sealed, unopened products may be returned within 14 days of delivery.
Does Peptides Lab UK publish COAs?
COA ✓. Open the vendor's certificate library and match each report to the exact product, strength, and lot before ordering.
What do customer reviews say about Peptides Lab UK?
PeptidePrices could not verify a mature independent review aggregate for Peptides Lab UK. The evidence summary on this page records what we could and could not verify.
