Apply the code, then check your total.
GRANT gives 20% off for new customers on their first order only. GRANT15 gives 15% off for everyone, including repeat orders, with no minimum. Choose the code that fits your order, then check that the discount appears before you pay.
From code to checkout
- 01.
Open the shop's homepage
Go to the Oath Research homepage. Its notice recorded on 19 October 2026 says you need an account to browse the catalog. The products are research-use-only. You'll need to view the catalog through your account; the codes here don't show product availability or prices.
- 02.
Paste and apply the code
Find the coupon box in the cart or checkout, paste your chosen code and apply it. Remove any extra spaces. Read the order conditions if you're unsure which code to choose. Creating an account doesn't remove the first-order restriction.
- 03.
Read the discount and shipping charge
Look at the displayed discount and final total before submitting payment. Check shipping too. Stacking either code with another offer isn't confirmed, so don't add the advertised percentages together. If the saving is missing, resolve that before paying rather than expecting an adjustment later.
- 04.
If the code doesn't apply
Check the pasted text and whether your order meets the conditions. For a repeat order, choose GRANT15. If it still fails, save the cart details and ask Oath Research for help. A copied code alone doesn't tell you whether a discount has been applied.
Ask Oath about the order
Oath publishes +1 480-999-1097 for support and gives a response timeline of 24–48 hours. Its contact form requires an account. These details were recorded on 13 August 2026, so allow time for a reply. For research-use-only material that doesn't meet stated specifications or purity, read the refund or replacement policy.
Other questions? Read the offer answers.