# Oath Peptides promos: frequently asked questions > Answers to common questions about Oath Peptides promo codes: which work, why one might be rejected, and what the certificate archive and returns actually mean. ## Does Oath Peptides have a working promo code right now? Yes — two discount codes are active at Oath Peptides checkout as of this writing. One is for new customers only and takes 20 percent off a first order, which is actually a better new-customer offer than the 15 percent Oath advertises on its own homepage banner. The other applies to any order, has no minimum spend, and works for both new and returning customers, taking 15 percent off. Both are entered in the coupon or discount field during checkout, before you get to the payment step. Neither code pays this site a commission, referral fee, or anything else — they're listed here because they work, not because using one benefits this page financially in any way. If either stops working, it will be moved to the expired list rather than left listed as active. ## Why did my code get rejected at checkout? Almost always one of three things. The most common is a small typo or an extra space copied along with the code — retype it fresh rather than trusting a saved autofill entry. The second is trying to use the new-customer discount on an account that has ordered from Oath before; that code is restricted by design and will reject regardless of how correctly it's typed, because the system checks account history, not spelling. The third, rarer cause is timing: codes can change without much notice, and if one listed as active here has actually gone dead, that's worth reporting so the page gets corrected. If you've ruled out a typo and you're not a returning customer using the wrong code, check the contact page for how to flag it. ## Can a returning customer use the new-customer discount? No. The stronger of the two active codes, worth 20 percent, is restricted to accounts placing their first order — a standard structure for new-customer incentives across ecommerce generally, not something unique to Oath. If you've ordered before, that code will be rejected regardless of how it's entered, because the restriction is tied to account history rather than the code itself. The other active code is built for exactly this situation: it applies to any order, including repeat orders, has no minimum spend, and works whether it's your first purchase or your tenth. Returning customers should use that one directly rather than repeatedly retrying the new-customer code with different spacing or capitalization — the block is about who you are, not how you typed it. ## Is Oath Peptides the same company as Oath Research? Yes. Oath's own site now carries a site-wide banner reading 'Oath Peptides Is Now Oath Research,' and the shop itself operates at oathresearch.com. It's the same business under a new primary name — customer support, the testing program, and the checkout are all one and the same operation, not two competing companies. Interestingly, the footer of Oath's own site still reads 'Oath Peptides' even after the rebrand, so both names are genuinely still in circulation, including on Oath's own pages. If you searched for 'Oath Peptides' and landed here, or you're comparing this page against something that mentions Oath Research instead, you're looking at the same vendor either way — the codes on this site work at the same checkout regardless of which name you know it by. ## Does this site earn anything when I use a code? No. Neither active code pays this site a commission, an affiliate fee, a referral bonus, or anything else — that's true of both the 20 percent new-customer code and the 15 percent code for everyone. Using one costs you nothing beyond the discounted price, and it pays this site nothing beyond the fact that the page did its job. This is worth stating plainly rather than leaving vague: some coupon sites run on affiliate commissions and don't always say so clearly; this one doesn't have that arrangement with Oath at all, and if that ever changed, this page would say so directly rather than let a reader assume otherwise. ## Are all of Oath's lab certificates public? Not entirely, and it's worth being precise about the split. Oath has run more than 400 batches through independent testing — 425 as of August 2026 — and 250 of those certificates are searchable at oathresearch.com/lab-results by peptide name or batch number without creating an account. The remaining 175 require a free login to view. That's a meaningfully large public archive for the category, more than most competitors publish at all, but it isn't the fully open, no-account-required archive that some marketing implies. If full transparency matters to you specifically, know going in that a portion of the record sits behind a login rather than being open to anyone who clicks the link. ## What does the 99.63 percent purity figure actually mean? It's a trailing twelve-month average across every batch Oath has tested, not a promise about the specific vial in your order. The figure is calculated across roughly 425 tested batches and represents the testing program as a whole rather than any single result — a batch could in principle test somewhat below that average and still be within whatever bar Oath sets for shipping it. That's normal for how aggregate statistics work, not a hidden flaw, but it does mean the average is evidence the testing program is real and consistent rather than a guarantee about your specific purchase. The more precise check is the individual certificate for your batch, which is exactly what the archive at oathresearch.com/lab-results is for. ## What happens if a batch doesn't meet its stated purity? You're entitled to a refund or a replacement. That's the specific language Oath uses: product that doesn't meet its stated specifications or purity qualifies, alongside separate coverage for transit damage reported with photos within 48 hours, a wrong item shipped, non-delivery despite tracking showing otherwise, and duplicate orders caught before shipping. There's no restocking fee on an approved return, and once approved, refunds land in 5 to 7 business days, with an initial response within 24 to 48 hours. What isn't covered is a return on something already opened or used, which is standard across the research-material category rather than specific to Oath. The practical version: compare your certificate to what was promised, and if it's short, that's a documented basis for a claim, not a judgment call. ## Does Oath Peptides ship outside the United States? No. Oath ships within the United States only, and there's no international option at checkout regardless of what discount code is applied. Domestic orders typically go out on 2-day business air, usually through UPS, with real-time tracking included on every shipment. Orders placed before 12:00 p.m. Mountain time on a business day ship that same day; anything placed after the cutoff, on a weekend, or on a federal holiday ships the next business day instead. Shipping is free on US orders over $250. One distinction worth knowing: Oath guarantees when an order dispatches from its warehouse, not when a carrier delivers it — those are different promises, and only the first one is actually within Oath's control. ## How do I reach Oath Peptides directly? By phone at +1 480-999-1097, or by mail at 51 West Vaughn Avenue Suite 205, Gilbert, Arizona 85233 — both corroborated independently by three separate business directories, not just listed on Oath's own site. Oath's online contact form requires creating an account before you can submit a message, while the phone number doesn't require one. Support is staffed on weekdays; Oath's own contact and about pages list slightly different hours for exactly when, so this page won't print a specific window it can't confirm. One thing worth expecting going in: Oath won't advise on dosing, reconstitution, or how to use a research compound, which is the correct posture for a vendor selling strictly for research purposes, not a support failing. ## Is Oath Peptides trustworthy? Based on what's publicly checkable, Oath sits among the most thorough US research-peptide vendors on testing and transparency — not the only one running batch-level testing, and this page isn't going to inflate that into 'the best' or 'the only one' without an outside source backing that specific claim. What supports it: more than 400 independently tested batches, purity measured by HPLC-UV with LC-MS identity confirmation, per-batch certificates naming the testing lab, and 250 of those certificates searchable without an account. A handful of Oath's own claims — like synthesis under ISO-certified protocols — are Oath's statements about itself rather than independently verified facts, and this page treats that distinction as worth keeping rather than blurring for a stronger pitch. ## Will the current promo codes eventually expire? Probably, at some point — most retail discount codes do, whether because of a fixed end date, a budget cap, or simply a company consolidating its active offers. When that happens here, the code moves to the expired-codes list rather than staying listed as live after it stops working at checkout. That's the reason this site checks the active codes periodically against Oath's own checkout instead of publishing them once and leaving them unverified indefinitely. If you're reading this well after August 2026, treat the homepage as the source of truth for what's currently active rather than assuming any code mentioned elsewhere is still good — codes on the expired list are kept there specifically as a record of what no longer works. The questions below cover what comes up most often: which codes currently work and who can use each one, why a code sometimes gets rejected at checkout, what Oath Peptides' testing numbers actually mean in practice, and how shipping and returns work when something needs to be sent back or didn't arrive as promised. Each answer stands on its own, so feel free to skip straight to whichever one you actually came here for rather than reading top to bottom. If a question you have isn't covered below, the contact page is the way to ask it — and if the answer turns out to be something other readers would want too, it tends to end up added here eventually rather than answered once and forgotten. ## 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. Shop Oath Research: --- This page would rather hand you a certificate number than sell you a vibe — that's the whole editorial policy here. © 2026 Oath Peptides Promos. An Oath Peptides deal page; the codes pay this site nothing.