Eligibility before habit
oath repeat order discount, without a first-order condition.
Already bought from Oath Research? GRANT15 is the 15% offer for everyone. Its conditions are straightforward: No minimum. Applies to repeat orders. You don't need to increase the order just to use this code. Check the reduction in your cart before paying.
15% off for everyone.
The larger percentage belongs to a different order.
GRANT gives 20% off for new customers on a first order. It isn't the returning-customer option. On a repeat purchase, compare the total after the eligible code with the total before it, including the shipping charge.
Stacking the codes, or adding either to Oath Research's new-account offer, isn't confirmed. Don't assume opening a new account makes a returning customer eligible for a first-order discount. Choose the code that fits your order, then check what the cart accepts.
Keep these apart
No minimum for the code; a separate threshold for shipping.
A smaller repeat order can use the code for everyone without qualifying for free shipping. Oath Research offers free shipping on US orders over $250. We don't know whether that amount is measured before or after the discount.
Check the shipping charge before adding anything just to cross that line. Since the code has no minimum spend, start with the order you need and see what it costs, including delivery.
A repeat order isn't a rewards balance.
This is a code you apply at checkout. The terms don't describe a points balance, account credit or subscription benefit. You don't need an earlier-order total from this desk: we don't store your purchase history or calculate rewards from it.
The latest logged-out cart record is checked 2026-10-19. It records this code applying and a made-up control code being rejected. Check that your own cart shows the reduction before you pay. Oath Research's products are research-use-only materials, including on repeat orders.
Keep beside this page
Apply the repeat-order offer