Question 1

What purity level are your peptides?

Accepted Answer

All Refined Peptide compounds are third-party tested and supplied to a minimum purity of ≥98%, with select compounds (Ipamorelin, NAD+) certified at ≥99%. Certificates of Analysis are available for every batch.

Question 2

Are these products for human use?

Accepted Answer

No. All products are strictly for research and laboratory use only. They are not intended for human or veterinary consumption, and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.

Question 3

What form do the compounds arrive in?

Accepted Answer

Compounds are supplied in pre-loaded research pens delivering 60 precision doses per pen. Each pen is sealed and labelled with compound name, concentration, lot number, and expiry date.

Question 4

Do you provide Certificates of Analysis?

Accepted Answer

Yes. A Certificate of Analysis (CoA) is available for every product and batch, confirming purity, identity, and analytical test results from an ISO 17025 accredited laboratory.

Question 5

How should research peptides be stored?

Accepted Answer

Most peptides (BPC-157, TB-500, Ipamorelin, Tesamorelin, GHK-Cu) should be stored at -20°C. GLP-1/GIP agonists (Tirzepatide, Retatrutide) and NAD+ should be kept at 2-8°C. Always keep away from light and moisture.

Question 6

What are your UK delivery options?

Accepted Answer

We offer standard UK delivery (3-5 working days) and express next-day delivery for orders placed before 2pm. All orders are shipped in temperature-controlled, discreet packaging. Free standard delivery on orders over £150.

Question 7

Who can purchase research peptides from Refined Peptide?

Accepted Answer

Our products are available exclusively to qualified researchers, licensed laboratories, and institutions purchasing for legitimate scientific research in the UK.

Question 8

What research has been conducted on BPC-157?

Accepted Answer

BPC-157 has been studied in numerous pre-clinical models for accelerated tendon and ligament healing, gut mucosal repair, angiogenesis promotion, and modulation of dopaminergic and serotonergic systems.

Question 9

What is the mechanism of action of Tirzepatide?

Accepted Answer

Tirzepatide is a dual GIP and GLP-1 receptor agonist acting on both incretin pathways simultaneously, producing complementary effects on insulin secretion, glucagon suppression, gastric emptying, and appetite regulation.

Question 10

How does injectable NAD+ differ from oral supplements?

Accepted Answer

Injectable NAD+ bypasses first-pass metabolism and gut absorption limitations that reduce oral bioavailability. Research consistently demonstrates superior plasma concentrations and cellular uptake with injectable formulations.

FAQ & Research Guide