Cheapest Semax in the UK

The cheapest 10mg Semax is Maxx Labs at £24.99, as of 8 June 2026.

Across 14 UK vendors a 10mg Semax vial ranges from £24.99 to £75.00, the cheapest is Maxx Labs at £24.99.

For a 10mg vial: Maxx Labs (£24.99), UK Peptide Supply (£24.99), UK Peptide Supply (£24.99).

From 14 tracked UK vendors, including Orbitrex Peptides, Regen Peptides, Maxx Labs, UK Peptide Supply, NASS Peptides, Dr Peptides. Peptiverse compares their prices side by side.

Orbitrex Peptides, Regen Peptides, Maxx Labs, UK Peptide Supply, NASS Peptides, Dr Peptides, Peptiology, Wolverine Peptides UK, OP Labs (Oxford Peptides), Oxford Peptides, BioPlex Peptides, C&D Peptides and 2 more.

Tracked vial sizes: 5mg, 10mg, 30mg.

The cheapest 5mg Semax is Wolverine Peptides UK at £16.99.

Research peptides such as Semax are legal to buy and sell in the UK as laboratory research materials, provided they are supplied for research use only, not for human consumption, and carry no medical claims.

This page compares single-compound Semax. It is also sometimes sold combined with other peptides in blends/stacks, which are listed separately.

Prices are scraped from each vendor's live catalogue and were last refreshed on 8 June 2026; the comparison re-runs regularly so figures stay current.

Yes, 4 vendors listing Semax publish an independent third-party COA (Janoshik): UK Peptide Supply, NASS Peptides, Wolverine Peptides UK, C&D Peptides. Others show an in-house or no published COA, so always check the batch COA before buying.

Trust a COA that is (1) from an independent lab such as Janoshik, not in-house, (2) tied to the exact batch you're buying, and (3) recently dated. An undated or old COA, or one for a different batch, does not prove the quality of current stock.