Shipping

Where we ship

United States addresses only, from US stock. We do not ship internationally: import rules for research chemicals vary sharply by country and a seized parcel helps nobody. Business, laboratory and residential addresses are all fine. We cannot ship to PO boxes for insulated shipments.

Cost

Free over $200 after any volume discount. Below that, a flat $12. The threshold and rate are applied at the cart, so you always see the figure before you commit.

Dispatch

Orders with cleared payment before 2 pm CT on a business day dispatch the same day. After that cutoff, or on a weekend or federal holiday, they go the next business day. Because payment in this category is handled off-domain, the clock starts when payment clears, not when the order is created.

Packaging and cold chain

Vials travel in insulated mailers with gel packs, boxed so nothing moves. Lyophilized peptide is stable at ambient temperature across a domestic transit — the gel packs are margin, not necessity — so a mailer that arrives at room temperature has not spoiled. What matters is what you do next: get sealed vials to -20 °C, and once reconstituted keep them at 2–8 °C and use within 30 days. Compound-specific guidance is on every product page and summarised under storage and handling.

Outer packaging is unbranded and describes the contents as laboratory reagents. The packing slip inside lists every lot number shipped so you can verify each one at /verify.

Tracking

Tracking is emailed as soon as the label is created, to the address on your research account.

When something goes wrong

• Not delivered. If tracking shows no movement for five business days, tell us and we will open a carrier trace. If it is genuinely lost we replace the order or refund it — your choice.
• Delivered but missing. Tell us within seven days of the delivery scan. We will investigate with the carrier; where the evidence is inconclusive we replace once, as a goodwill matter.
• Damaged. Photograph the outer box and the vials before unpacking further, then email us. Broken glass is replaced immediately, no return required.
• Wrong address. Tell us before dispatch and we will correct it at no cost. After dispatch we can request a carrier redirect, which the carrier may charge for and may refuse.

Every one of these routes through support@rensaresearch.com. Refunds and non-conformity are covered separately under returns and refunds.