An oath research discount code in context.
Start with eligibility, then compare the saving. The table puts each typed code beside the account banner and US shipping offer. It shows who each offer is for and what it reduces. It doesn't calculate a combined total or assume that an order qualifies for everything listed.
| Entry | Eligibility | Saving type |
|---|---|---|
| GRANT | New customers; New customers only. First order. | 20% reduction |
| GRANT15 | Everyone; No minimum. Applies to repeat orders. | 15% reduction |
| Account banner | New accounts, as stated in the shop's banner | 15% published offer |
| US shipping | US orders over $250 | Delivery charge |
Compare eligibility before percentages
GRANT offers 20% off for new customers. New customers only. First order. Its percentage is higher than the shop's 15% new-account banner. These are separate options; the banner doesn't show that its saving can be added to the code.
GRANT15 offers 15% off for everyone. No minimum. Applies to repeat orders. Unlike the first-order code, it includes returning customers. The account banner has a different audience even though it shows the same percentage.
Shipping has its own condition: US orders over $250. The records don't say whether the qualifying amount is counted before or after a discount. Being eligible for a code doesn't settle the shipping charge, and free shipping doesn't establish eligibility for either code.
Read the checkout result
Don't add the code percentages together or assume that a code combines with the account offer or free shipping. The available records don't confirm those combinations. Review the applied reduction, shipping charge and final total at the shop before paying.
If a reduction is missing, check the copied code and its customer conditions, then ask Oath support. The published refund or replacement policy covers research-use-only product that doesn't meet stated specifications or purity; it doesn't describe a refund for a missed coupon.
The latest code application record is dated October 27, 2026. The account banner was on the homepage on October 19, 2026. Those dates don't confirm future availability. Oath requires account registration to browse its catalog.
