Answers to the most frequently asked questions.

Use the vial selector on the product page to choose the option you want before checkout. If you are unsure, contact Catalyst Shop before ordering.

Every vial carries a QR code on its label. Scan it to open that vial's batch page, where its tests and results are kept together and can be reviewed again at any time.

Store unreconstituted vials in a cool, dry place away from direct sunlight. Once reconstituted, refrigerate at 2–8°C. Do not freeze.

Catalyst Shop supports card, Cash App, Venmo, Zelle, and ACH bank transfer. Available methods and the applicable recipient details are shown at checkout.

Catalyst Shop ships orders within 2 business days after payment clears, Monday through Friday excluding U.S. holidays. Every customer receives a tracking number when the order ships.

Use Track Package in the Catalyst Shop menu or open My Account to view the latest available order and tracking information.

Catalyst Shop products are final sale and cannot be returned for resale. If an order arrives damaged or incorrect, contact Catalyst Shop within 7 days so the order can be reviewed.

Use the Contact page for product, order, shipping, or account support.