Last updated: 10 September 2026
Where we deliver
We deliver to the United Kingdom and the Channel Islands.
Dispatch times
- In-stock items — ordered before 12pm Monday to Friday: dispatched the same business day. After 12pm, or on weekends and bank holidays: the next business day.
- Made-to-order items (peptide pens, pen refill cartridges and nasal sprays, marked “Made to order”) — prepared fresh for your order and dispatched within 48 hours. We never hold pre-reconstituted stock.
- Pre-order items — dispatched within 28 days. If we miss this, you receive a full refund plus £20 store credit (see our Refund policy).
Orders containing made-to-order or pre-order items ship complete when the last item is ready. If you need in-stock items sooner, please place separate orders.
Delivery service and cost
- Express tracked delivery — £5.99
- Free express delivery on orders of £200 or more
- Guaranteed next-day delivery — £15.00 — for in-stock items ordered before 12pm Monday to Friday. Available to mainland Great Britain only (England, Scotland and Wales).
You will receive a tracking number by email as soon as your order is dispatched.
Northern Ireland and BFPO addresses
We deliver to Northern Ireland (BT postcodes) and to British Forces Post Office addresses on our standard express tracked service, and orders of £200 or more still qualify for free express delivery.
Guaranteed next-day delivery is not available to these addresses and will not be offered at checkout. Our carrier cannot guarantee a next-day service on these routes, so we would rather not sell you a promise we cannot keep. Delivery to these addresses typically takes a little longer than to mainland Great Britain.
Channel Islands
Express delivery (2–3 days) £25, or standard delivery (6+ days) £10. A customs declaration is required for these orders.
Packaging
All orders ship in insulated, temperature-controlled packaging inside a plain, unbranded outer — nothing on the parcel identifies its contents.
Delays or lost parcels
If your tracking has not updated for 3 working days, contact us at support@pepsource.co.uk and we will chase the courier and, where a parcel is confirmed lost, replace or refund it. If a delivery fails and the parcel is returned to us, re-delivery may incur additional postage.