Your satisfaction, guaranteed
Backed by USA-based, ISO/IEC 17025-accredited lab testing and free shipping protection — so you can order with total confidence.
Lyophilized peptides are very resilient to heat, up to 120°F. Out of caution, do not leave delivered peptides outside or in your mailbox for more than a day, to ensure full potency. Our guarantee does not cover peptides left in the heat for extended periods. Please track your shipment and be aware of your delivery date.
The four guarantees
Return any unopened, factory-sealed product within 30 days of delivery for a refund of the product price — no restocking fee. Original shipping is not refunded and return shipping is the customer's responsibility.
Unopened vials · 30 daysEvery peptide we ship carries a third-party COA from a USA-based, ISO/IEC 17025-accredited lab — the Precision Line clears identity, purity, net peptide content and a fentanyl screen on every lot, and Black Label adds heavy metals, sterility and endotoxin testing. If it ever tests below spec, we refund you, replace it free, and cover the test.
4× tested Precision · 7× tested Black LabelShipping Protection covers loss or damage in transit and is included free on every order. Damaged in transit: return the product with the prepaid label we provide, then we ship a free replacement — or issue a refund if the item is out of stock or you prefer one.
Loss & damage in transitIf anything about your order isn’t right, we’ll make it right — no questions asked.
Every orderHow we make it right. If something about your order isn't right, tell us — the guarantees above set out exactly how we make it right.
How the purity guarantee works
Every peptide we ship carries a third-party COA — and if one ever tests below spec, here is exactly what happens:
Full refund and return terms are in the policy below.
Read the full guarantee