Shipping
Orders before 2 PM PT ship the same business day. Cold-chain, discreet packaging, tracking on every parcel. Free shipping over $60; the rate below that shows at checkout.
Shipping policyHelp centre
How can we help?
Testing, COAs, fulfilment, storage and research-use requirements. Most answers are here; the rest reach a real person within one business day.
Product & quality
5 answersEvery lot is verified at ≥ 99% purity by HPLC with identity confirmed by LC-MS at an independent US laboratory. The lot-specific certificate is published on the product page before the lot is listed, and the lot number on each vial corresponds directly to its COA.
Ordering & shipping
6 answersResearch use & compliance
4 answersStorage & handling
4 answersDocumentation & testing
4 answersShipping and refunds at a glance
Refunds and replacements
Damaged or incorrect shipments are replaced at no cost when reported with photos. Unopened vials may be returned within 30 days; opened vials cannot be returned.
Refund policyDocumentation
COA PDF, safety data sheet and institutional procurement letters on request.
Request documentsStill stuck? Talk to a person.
Replies within one business day, Monday to Friday. Include your order number for shipping issues.