Same-day dispatch on orders placed before 2pm · Tracked UK delivery
Diluent, UK Research Peptides
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Delivery

Beat 2pm on a weekday and it leaves that day. Tracked the whole way, and we post within the UK only.

Dispatch

The cut-off is 2pm on a working day. Order inside it and your parcel leaves the same afternoon. Miss it, or order on a weekend or bank holiday, and it goes with the next working day's collection.

Where we ship

The United Kingdom, and nowhere else. We will not post abroad, and we will not send to a freight-forwarding address either.

Cost

Tracked UK delivery
Order valueDelivery
Under £75£4.95
£75 and overFree

How it is packed

What goes in the box is dry freeze-dried powder, and that is a choice rather than an accident. Peptides break down in water, so most of this catalogue exists in dry form precisely because a parcel is no place for a solution. The moment you add the water back, the clock is running.

Pens and nasal sprays are the exception, since they come ready mixed. Whatever the format, the packaging is plain and says nothing about what is inside it.

If something arrives damaged

Get in touch first, with the batch number off the label to hand. Glass that has cracked, a stopper that no longer looks intact, or a cake that has gone melted, off-colour or slumped as though moisture reached it: every one of those is a reason to stop there and ask, not to press on and see what happens.

Tracking

The tracking number goes out by email the moment the order is dispatched. Nothing by the close of the next working day? Look in your spam folder first. That is almost always where it has gone.

Delivery questions

When will my order be dispatched?

Beat 2pm on a working day and it goes that day. Miss it and it goes the next one.

Do you ship outside the UK?

We do not. UK addresses only.

How much is delivery?

£4.95 tracked, and free on orders of £75 or more.