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[Oath First Promos A welcome before order one](/)

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- [A welcome before order one](/)

- [Make sure this is your first order](/first-order-checklist)

- [Understand the account offer](/new-account-offer)

- [Read the shop details](/why-oath)

- [Pause before you pay](/before-you-pay)

- [Ask a first-order question](/faq)

- [Meet this deals page](/about)

A note before your first purchase.

# Your oath first order code, with a little preparation.

Cart record: checked 19 October 2026

Before you begin,

If you're about to make your first purchase at Oath Research, GRANT gives new customers 20% off their first order. Before you copy it, take a moment to check that the offer fits. You can read this checklist here, then use your chosen code when you're ready at the shop.

## First, be sure you're new to the shop.

The first-order offer is for new customers only. If you've bought from Oath Research before, please choose GRANT15 instead: it gives everyone 15% off, includes repeat orders and has no minimum. You still have a code to take with you. Choose one code, and check its saving before paying.

## Then, know what you're ordering.

- You'll need an account to browse the product catalog. The shop's homepage said so on 19 October 2026, so allow time to register before looking at products or prices.

- Read the description and available batch documentation. These products are research-use-only material, and a first-order saving doesn't change that status.

- Check that your delivery address is in the United States. Oath Research ships to the US only.

- Keep your chosen code handy. Apply it in the shop's coupon box, then check the discount and total before placing the order.

If you're unsure about your purchase history, ask Oath Research before paying. Keep the code handy while you read the order details. Look at the shipping charge as well as the discount, and make sure the final amount makes sense to you. There's time to ask the shop about anything unclear before you place an order.

When you’re ready

[Come and compare the code with the sign-up banner.](/new-account-offer)

You're welcome at this Oath Research deals page, where nothing from either code comes back to us.

© 2026 Oath First Promos. A little clarity before checkout.