Research Peptides You Can Trust
Research-grade peptides with Certificate of Analysis on every batch. >99.80% HPLC purity, third-party verified, UK domestic stock.

The UK peptide problem.
Most research peptides sold in the UK ship from grey-market labs overseas. Delivery takes weeks. Customs seizures are routine. Certificates of Analysis, when supplied, often don't match the batch. Purity claims go unverified.
Alphex is built differently. UK-based. Domestic stock. Independently HPLC-verified to >99.80%. COA on every order, batch-matched. Same-day dispatch from our UK facility.
Documented quality. Every batch. Every order.
>99.80% HPLC purity
Verified on every batch by independent lab
Tracked UK delivery
Order by 2pm for same-day dispatch
COA with every batch
Third-party tested, batch-matched, in the box
Refund if purity falls short
Send it back. Full refund. No questions.
From synthesis to your bench.

>99.80% always.
Every batch is independently verified by HPLC and Mass Spectrometry. The COA is supplied with your order, batch-matched, and available on request before purchase. Research-only.

Every batch. HPLC + mass-spec.
Each reagent is tested using HPLC and mass spectrometry to verify purity and composition. Comprehensive lab reports are provided for every batch.

Research use only. Not for human use.
Our products are supplied exclusively for laboratory and research purposes and are not authorised for human or veterinary use.
What UK researchers ask before ordering.
Is buying research peptides legal in the UK?
Research peptides are legal to purchase and possess in the UK for laboratory research purposes. They are not authorised for human or veterinary use. By ordering from Alphex you confirm you are a qualified researcher.
How do I know your COAs are genuine?
Every COA we supply is issued by an independent third-party laboratory, batch-matched, and timestamped. Email alex@alphex.co.uk before purchase and we will send the COA for the in-stock batch.
What about customs? Do orders get seized?
No. All Alphex orders ship from UK domestic stock. Your order does not cross a border, is not inspected at customs, and arrives by tracked UK courier.
Shipping, packaging and delivery times?
Same-day dispatch on orders before 2pm Mon to Fri. Tracked next-day UK delivery. Vacuum-sealed, discreet packaging. Free UK shipping on orders over £100.
What does >99.80% HPLC mean?
HPLC measures the percentage of target compound versus impurities. Industry standard is approximately 98%. Our threshold is above 99.80%, verified independently on every batch.
Who do I contact for batch documents?
Email alex@alphex.co.uk. We reply within working hours and can supply the COA for any in-stock batch in advance of purchase.
Verifiable purity. UK stock. Tomorrow.
Order before 2pm Mon to Fri for same-day dispatch. COA included with every order.
Browse Catalog