Cheapest P-21 in the UK
As of 8 June 2026, the cheapest 5mg P-21 in the UK is OP Labs (Oxford Peptides) at £22.90. 4 UK vendors stock P-21, in 2 sizes: 5mg, 10mg.
| # | Vendor | Price | Tested | Live support | Payment | |
|---|---|---|---|---|---|---|
| 1 | NASS Peptidesnasspeptides.co.uk |
£52.50CHEAPEST | 3rd-party · Janoshik | WhatsApp Telegram | Card Bank | visit → |
P-21 price history, UK cheapest 5mg
Peptiverse began tracking P-21 prices on 8 June 2026. The cheapest 5mg today is £22.90 (OP Labs (Oxford Peptides)). A daily price history chart appears here as data builds.
P-21, frequently asked
What is the cheapest P-21 in the UK?
The cheapest 5mg P-21 is OP Labs (Oxford Peptides) at £22.90, as of 8 June 2026.
How much does a 5mg vial of P-21 cost in the UK?
Across 4 UK vendors a 5mg P-21 vial ranges from £22.90 to £44.00, the cheapest is OP Labs (Oxford Peptides) at £22.90.
Which UK vendor is cheapest for P-21?
For a 5mg vial: OP Labs (Oxford Peptides) (£22.90), Oxford Peptides (£22.90), Peptiology (£44.00).
Where can I buy P-21 in the UK?
From 4 tracked UK vendors, including OP Labs (Oxford Peptides), Oxford Peptides, NASS Peptides, Peptiology. Peptiverse compares their prices side by side.
Which UK vendors sell P-21?
OP Labs (Oxford Peptides), Oxford Peptides, NASS Peptides, Peptiology.
What sizes does P-21 come in?
Tracked vial sizes: 5mg, 10mg.
How much is a 5mg vial of P-21?
The cheapest 5mg P-21 is OP Labs (Oxford Peptides) at £22.90.
Is P-21 legal to buy in the UK?
Research peptides such as P-21 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.
Is P-21 sold as a single vial or in a blend?
This page compares single-compound P-21. It is also sometimes sold combined with other peptides in blends/stacks, which are listed separately.
How current are these P-21 prices?
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.
Is P-21 third-party COA tested?
Yes, 1 vendor listing P-21 publish an independent third-party COA (Janoshik): NASS Peptides. Others show an in-house or no published COA, so always check the batch COA before buying.
How do I know a P-21 COA is genuine and current?
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.