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Contact Crown Peptides
We usually reply within 24 hours on business days. For a quicker reply, message us on WhatsApp. Messages about human consumption or other non-research use will not be answered.
Questions about an order, a batch certificate, storage or bulk pricing? Send us a message and the team will come back to you, usually within 24 hours on business days.

Customer enquiries only. We usually reply within 24 hours on business days.
Suppliers and wholesalers, please read
This inbox is for customer enquiries only. We do not source peptides through unsolicited approaches, and we do not review supplier proposals sent here.
Messages offering peptides for sale will be marked as spam and reported.
What we can help with
Before you message
Many questions are already answered on the site. Start here and you may not need to wait at all.
FAQs
Everything on our peptides, testing standards, storage, delivery and ordering.
OpenCheck a batch
Every vial has a published certificate. Look yours up by batch number.
OpenPeptide calculator
Work out reconstitution and insulin units in seconds.
OpenFree UK delivery over £100
Order before 2pm for same-day dispatch.
OpenQuestions about an order, a batch certificate, storage or bulk pricing? Send us a message and the team will come back to you, usually within 24 hours on business days.
Customer enquiries only. We usually reply within 24 hours on business days.

Suppliers and wholesalers, please read
This inbox is for customer enquiries only. We do not source peptides through unsolicited approaches, and we do not review supplier proposals sent here.
Messages offering peptides for sale will be marked as spam and reported.
What we can help with
Before you message
FAQs
Everything on our peptides, testing standards, storage, delivery and ordering.
OpenCheck a batch
Every vial has a published certificate. Look yours up by batch number.
OpenPeptide calculator
Work out reconstitution and insulin units in seconds.
OpenFree UK delivery over £100
Order before 2pm for same-day dispatch.
OpenDisclaimer: All products are sold strictly for laboratory research purposes only. Not for human or veterinary use, consumption, therapeutic, or diagnostic application. By purchasing, you confirm you are a qualified professional and legally permitted to handle these materials in compliance with all applicable laws and regulations. Misuse, resale for unauthorised purposes, or unlawful application is strictly prohibited. Crown Peptides UK disclaims all liability for improper use, handling, or regulatory non-compliance.
Questions about an order, a batch certificate, storage or bulk pricing? Send us a message and the team will come back to you, usually within 24 hours on business days.

Customer enquiries only. We usually reply within 24 hours on business days.
Suppliers and wholesalers, please read
This inbox is for customer enquiries only. We do not source peptides through unsolicited approaches, and we do not review supplier proposals sent here.
Messages offering peptides for sale will be marked as spam and reported.
What we can help with
Before you message
Many questions are already answered on the site. Start here and you may not need to wait at all.
FAQs
Everything on our peptides, testing standards, storage, delivery and ordering.
OpenCheck a batch
Every vial has a published certificate. Look yours up by batch number.
OpenPeptide calculator
Work out reconstitution and insulin units in seconds.
OpenFree UK delivery over £100
Order before 2pm for same-day dispatch.
OpenQuestions about an order, a batch certificate, storage or bulk pricing? Send us a message and the team will come back to you, usually within 24 hours on business days.
Customer enquiries only. We usually reply within 24 hours on business days.

Suppliers and wholesalers, please read
This inbox is for customer enquiries only. We do not source peptides through unsolicited approaches, and we do not review supplier proposals sent here.
Messages offering peptides for sale will be marked as spam and reported.
What we can help with
Before you message
FAQs
Everything on our peptides, testing standards, storage, delivery and ordering.
OpenCheck a batch
Every vial has a published certificate. Look yours up by batch number.
OpenPeptide calculator
Work out reconstitution and insulin units in seconds.
OpenFree UK delivery over £100
Order before 2pm for same-day dispatch.
Open