Best value
20% off
New customers
20% off your first order. New customers only. First order.
Use at oathresearch.comLive codes, real math
Oath discounts, worked out in real dollars
One code takes real dollars off a first order, another does the same on every order after that with no minimum, on top of the free-shipping line and the new-account offer Oath already posts on its own site.
15% off
Everyone
15% off any order. No minimum. Applies to repeat orders.
Use at oathresearch.comBoth codes were tested against Oath Research's live checkout on 13 August 2026 and applied correctly. This site is an Oath Research deal page — it is paid nothing when you use a code, and there is no commission on either of them.
- 20% off, first order
- 15% off, no minimum
- Free ship over $250
- 425+ batches tested
Two Oath Research codes are live at checkout right now, and this page runs the exact numbers on both of them before you ever reach the payment screen.
Oath Research runs two working discount codes right now, and this page's whole job is to show you exactly what each one is worth in dollars, not just a percentage on a banner. One code is for first orders only and knocks off the most. The other has no minimum and works every time, whether it's your first order or your fifteenth. On top of both, Oath already ships free once an order passes $250, no code required. Most coupon pages stop at handing you a code and wishing you luck. This one goes further: real Oath prices, real baskets, and the actual total you'd pay with each option, so you're not doing mental math at checkout. Keep reading for how the numbers actually work out.
Why the numbers on this page are worth trusting
This page exists to do the arithmetic Oath doesn't put on a banner — real dollars off real baskets, not just a percentage. Every price below comes straight from Oath Research's own product pages, and every discounted total is one you can check yourself before you check out.
- 20%off a first ordernew customers, one code
- 15%off any orderno minimum, repeat-friendly
- $250+ships freestanding offer, no code needed
- 425+batches testedOath Research, as of Aug 2026
The new-customer code beats Oath's own offer
Oath already advertises 15% off to new accounts on its own site — on a $100.00 order, that's $15.00 off, landing at $85.00. The new-customer code tracked on this page does better: 20% off the same $100.00 order is $20.00 off, for a total of $80.00. That's five real dollars more back in your pocket on an identical order, just from using this code in place of Oath's own default new-account offer. It only applies once, to a first order, so it's worth using on the largest first order you're planning rather than a small test purchase.
The everyday code has no fine print
The second code on this page has no published minimum and no restriction tied to account history — it applies whether it's your second Oath order or your twentieth. On an $85.00 basket, it takes off $12.75, landing at $72.25; the math scales the same way at any order size. It's smaller than the new-customer code, but it doesn't expire after one use, which makes it the code worth keeping around for every order after your first.
Free shipping is a separate way to save
Orders over $250 in product ship free at Oath, and that's separate from either code — it's based on order value, not on anything you type into a code field. Four mid-priced items can land close to that line without much effort: a BPC-157, a GHK-Cu, an Ipamorelin, and a CJC-1295 already total $205.00 in product. One more item is usually enough to clear $250 and drop the shipping charge from the order entirely.
425+ batches, tested and checkable
Oath has run more than 400 batch tests — 425 as of August 2026, with the count still climbing. Purity is measured by HPLC-UV with LC-MS identity confirmation, averaging 99.63% over the trailing twelve months, tested by Freedom Diagnostics, an independent third-party lab named on every certificate. 250 of the 425 certificates are searchable on Oath's own site without an account; the rest require logging in. That's a real, checkable record behind the prices this page runs its math on, not a marketing claim.
Nobody here takes a cut
No commission, no affiliate payment, and no relationship with Oath Research beyond reading its own checkout and its own product pages. That's true of every code and every price on this page: using one costs this page nothing to lose and earns it nothing to gain. The only thing being sold here is the arithmetic — real Oath prices, run through real Oath discounts, so the total at checkout isn't a surprise.
Expired Oath codes
Codes stop working all the time — the ones below no longer apply at Oath's checkout, and they're kept here so you're not the one who finds that out with a full cart.
| Code | Offer | Expired | Status |
|---|---|---|---|
| SAVE12 | 12% off any order | 2026-03-28 | Expired |
| OATHDEAL | $25 off orders over $200 | 2026-01-08 | Expired |
| SPRINGLAB | 15% off sitewide | 2025-11-01 | Expired |
| FIRSTORDER20 | 20% off first order | 2025-09-15 | Expired |
What you're actually looking at
This page tracks four separate ways to pay less at Oath Research: a code for new customers, a code that works for everyone, a free-shipping line built into Oath's own checkout, and a comparison against the 15% offer Oath already advertises to new accounts on its own site.
None of these are secret. They're not something anyone had to dig up — they're live codes that work right now, priced out here so you can see the dollars before you commit to an order. Every price used in the worked examples below is pulled straight from Oath's own product pages, not estimated, so the totals should match what you'd actually see in your own cart on the same items.
The two codes are not the same size, and they're not for the same person. One is bigger and only works once, on a first order. The other is smaller and works every time, with no restriction tied to your order history. Which one applies to you depends entirely on whether you've ordered from Oath before — covered in detail in the next two sections, with real baskets and real totals for each.
New here? Start with this one
If this is your first Oath order, you're looking at the better of the two codes. Oath already advertises 15% off for new accounts on its own site — on a $100.00 order, that's $15.00 off, bringing it to $85.00. The new-customer code on this page does better: 20% off that same $100.00 order is $20.00 off, for a total of $80.00. That's five real dollars more in your pocket for the same order, just by using this code instead of Oath's own default.
On a smaller order it works the same way, just smaller. A single BPC-157 at $40.00 drops by $8.00 with the new-customer code, landing at $32.00. There's no published minimum order size for this code, and it isn't limited to a specific compound — the discount applies to the subtotal of a first order regardless of what's in the cart. The only real condition tied to it is that it's for a first order. Order from Oath again after that, and you'll want the other code, covered next.
Ordered before? This is your code
The new-customer code only applies once, so if you've already placed an Oath order, it won't go through — that's expected, not a mistake on your end. The second code on this page picks up right where the first one stops: no minimum order size, and it works whether this is your second order or your twentieth.
Here's what it looks like on an actual basket. A NAD+ at $40.00 and an Epithalon at $45.00 come to $85.00 before any code. Apply the second code and you take $12.75 off, for a total of $72.25. Same code, same math, on any combination of items — there's nothing to qualify for beyond being an Oath customer with something in the cart.
Unlike the new-customer code, this one doesn't stop working after a single use. It's the code worth keeping around for every order after your first, and it's the only one you'll need once the new-customer code is no longer available to you.
The free-shipping line, separate from either code
Oath ships free on US orders over $250 — that's a standing offer on its own, not something either code creates. It's worth pricing out on its own terms: a BPC-157 ($40.00), a GHK-Cu ($50.00), an Ipamorelin ($55.00), and a CJC-1295 ($60.00) add up to $205.00 in product — $45.00 short of the free-shipping line. Add a DSIP at $55.00 and the same basket comes to $260.00, which clears $250.
That $250 line is based on your order value at checkout. This page prices it out using full item prices, on purpose, since that's the number you can check against your own cart before anything else has been applied to it. It works the same way regardless of whether you're using the new-customer code, the everyday code, or no code at all — it's a property of the order, not of whichever discount you happen to be using.
The shipping page goes further into the specifics of how Oath ships once an order is placed, including the dispatch cutoff and what happens on weekends.
One code per order
Checkout takes one code at a time. If you happen to qualify for both — which a genuinely first-time order does, since the everyday code has no restriction of its own — run the bigger one. A $150.00 order comes to $120.00 with the new-customer code and $127.50 with the everyday code; the new-customer code is the better pick whenever you're eligible for it, and the gap only grows as the order gets bigger.
Nobody connected to this page gets paid when you use either code. There's no commission, no affiliate cut, and no relationship with Oath Research beyond reading their own checkout and their own product pages and writing down what's there. The codes work exactly the same whether you found them here or anywhere else — this page just does the arithmetic on them so you don't have to open a calculator mid-checkout.
That gap between the two codes is fixed at five percentage points, but the dollar value of it grows with the order — five points on a $50.00 order is a couple of dollars, and on a $500.00 order it's real money, which is exactly why it's worth checking before you default to whichever code you remember.
Ready to use a code?
Copy either code above, then paste it into the discount field at checkout. The 20% code is for first orders; the 15% code works every time.