Where to Buy LL-37 in the UK

Buying LL-37 in the UK

Buying LL-37 in the UK is rarely a question of availability. At 37 residues it is long by research-peptide standards, and synthesis quality varies noticeably between suppliers as a result.

The suppliers below are ranked on documentation first and price second. Identity-verified companies with batch-matched analysis sit above cheaper listings that publish less, because on this compound the cheaper listing is usually cheaper for a reason.

What to check before ordering

• • Long cationic peptides bind readily to glass and plastic, so vial and handling specification affects how much active material you actually recover.
• • Peptide content stated per 5mg vial, separately from gross weight
• • Batch number on the certificate matches the number on the vial label
• • A batch-matched certificate of analysis (HPLC purity and mass-spec identity).
• • ID verification — we confirm the trading entity behind the website.
• • Independent reviewer feedback on dispatch speed and packaging.
• • Price per mg rather than price per vial.