How to submit your sample

Write your order number on the package

On the outside of the box, or on a slip of paper inside where we'll see it immediately. This is the single thing that connects your vials to your order — a package without it sits on our bench until we can track you down.

Label each vial with the compound and strength

For example “Retatrutide 10 mg”. Internal code names are fine — just include a printed sheet matching each code to its compound (e.g. AP3-R = Retatrutide 10 mg). No need to relabel anything.

If two vials are identical, mark them 1 and 2

Every vial gets its own certificate, so we need to tell them apart. Two vials of the same compound, strength and lot are indistinguishable to us otherwise — and we couldn't tell you which result belongs to which vial.

Pack sealed vials and ship

Sealed vials only, padded so they don't move in transit. Include your name or company inside the package. Any carrier is fine — no signature required.

Shipping from outside the US?

We accept sealed vials from overseas by express courier — the same steps apply, plus these.

• Use a courier, not the post: FedEx International Priority, UPS Worldwide Express or DHL Express. Since 24 July 2026 every parcel mailed into the US through a postal service needs its own customs entry and bond, filed by the owner or a licensed broker; a courier shipment is entered by the courier's own brokerage. Many national posts also refuse or restrict medicines and powders.
• Address the box to a laboratory, not a person: KMD Group LLC dba KMD Analytical — Analytical Laboratory, 9631 Topanga Canyon Pl, Chatsworth, CA 91311, USA. Do not write "research use only" anywhere on the outside — UPS destroys pharmaceutical parcels marked that way when they are addressed to a residence. Describe the contents as a laboratory sample for analytical testing.
• Customs / commercial-invoice description, one line per vial: "Synthetic peptide, lyophilized powder, X mg, sealed glass vial — laboratory sample for analytical testing only, not for resale, not for human or animal use, non-hazardous."
• Declare a realistic replacement value for each vial — never zero, and never "no commercial value" on its own: US customs requires a real value even when nothing is sold. Select "duties and taxes billed to shipper"; any US duty, brokerage or carrier fee is the shipper's.
• Want a customs declaration and letter of purpose on our letterhead for your order? Reply to your submission email with the shipper's name, address and country and we will send one. It is an accommodation, not a guarantee of clearance (Terms §9).
• Ship sealed vials at room temperature — no dry ice or cold packs. Do not include liquids unless the liquid is the item under test; if it is, pack it in a sealed secondary bag with absorbent.
• Transit and customs time are on top of turnaround: the turnaround clock (5–7 business days, 7 business days maximum) starts the day we log your vials in.
• All prices are in US dollars (USD). Your card issuer converts at its own rate and may add a foreign-transaction fee. We do not add VAT or GST to invoices — the service is performed in California; business customers can have their tax ID printed on the invoice on request.