Buyer desk
Contact us
Order status, lot paperwork, and wholesale accounts. RUO only.
Contact Costides for wholesale Research Use Only catalog, order, or CoA paperwork questions—not for medical advice or dosing guidance.
Use published contact channels for buyer desk and fulfillment questions. Product pages remain the source for SKU identity and lot documents.
Email the buyer desk for cart questions, published COA lookups, and wholesale account requests. Include your order number or lot number when you have one.
Before you write
- FAQ for common RUO and pack questions
- Verify a lot for published COAs
- Shipping for domestic timing
- Wholesale accounts for tier and invoice requests
Frequently asked questions
- How do I contact Costides?
- Use the Contact page channels for wholesale catalog, order, or CoA paperwork questions. Costides does not provide medical advice or dosing guidance.