Reviewed by Jack Ryan, co-founder & editorial lead · Updated
COA practices 40%10/10
Reputation 20%8/10
Transparency 20%7.5/10
Operations 20%7.5/10
COA testing counts for 40%; reputation, transparency and operations count for 20% each.
COA evidenceCOA quality 10/10✓COA verified113 report records: 57 ILS Laboratories and 56 Vanguard Laboratory. Complete originals for 112; one source-viewer-only historical report.Endotoxin and metals on all 113; culture sterility on 106, fentanyl on 34 and microbial PCR on seven. ILS adds identity confirmation.
Purity: Reported purity 97.98–99.96% across 77 in-scope report records with exact numerical results. 36 additional report records give comparator bounds. NAD target purity remains separate from total chromatographic purity; blend components and comparator bounds retain their labels.
71 issuer-matched records; 48 of 53 offers have an exact certificate.
Yes. OneDay Compounds publishes extensive ILS Laboratories and Vanguard Laboratory testing, with endotoxin and heavy-metals results across 113 report records. Seventy-one match official laboratory records, and Trustpilot showed 4.8/5 from 78 reviews on October 16, 2026. The store requires an account; specific report-version differences and final-sale terms are detailed below.
Evidence summary
OneDay Compounds COAs and evidence
OneDay combines extensive laboratory testing with a documented customer-review history and published Utah business details. Complete report versions, measured differences and exact product matches remain available for comparison.
01
Laboratory reports
The archive contains 113 report records from ILS Laboratories (57) and Vanguard Laboratory (56), dated February 9–September 17, 2026 across 38 compounds. Complete originals are available for 112; the two pages of one historical GLP-2T report were reviewed in its source viewer, whose owner disables downloading. Endotoxin and heavy-metals results appear on all 113, culture sterility on 106, fentanyl screening on 34 and microbial PCR on seven. Seventy-one reports match official laboratory records. Forty Vanguard reports have no matching entry in its opt-in public index; that lookup result is separate from the printed test outcome. One CJC-1295 No DAC report is a checked earlier issue, and one historical GLP-3R report has a measured-content difference between versions.
02
Measured results
Numerical target purity spans 97.98%–99.96% across 77 report records; 36 give comparator bounds. NAD+ target purity remains separate from total chromatographic purity. Historical GLP-3R 20 mg report COA-2026-RBEAFD, lot OC-RT20-103, prints 21.06 mg for one vial and a 20.80 mg mean in the merchant copy; the current ILS version prints 15.99 mg and 19.13 mg. Both versions remain available and this record receives no verified listing certificate. The CJC-1295 No DAC 5 mg merchant copy differs from the current ILS issue by 0.01 mg and remains checked without an exact listing certificate. A later GLP-3R 20 mg lot, OC-RT20-104, measures 21.21 mg at 99.83% purity.
03
Reviews
Trustpilot showed 4.8/5 from 78 reviews on October 16, 2026: 95% five-star, 4% four-star and 1% one-star. Positive accounts describe fast delivery and easy ordering; one damaged-vial reviewer received a replacement in two days. The one-star review alleges heavy metals and a missing ingredient based on private testing. The company replied that no order number, lot or laboratory report was supplied, and none was posted. The company invites reviews and has a paid Trustpilot subscription. Peptide Critic includes one July 2026 user review (5/5) about fast shipping and a forum account of promptly corrected order glitches. PepReviewPro’s 88 five-star entries appear on a vendor-managed affiliate page and are separate from independent customer feedback.
04
Business identity
The terms and contact page identify Oneday Enterprises, LLC d/b/a Oneday Compounds at 2326 Washington Blvd, Fourth Floor, Ogden, Utah 84401. The phone line lists weekday hours of 9 AM–4 PM Mountain. The legal registration status and principals remain unconfirmed. The domain record dates registration to January 22, 2026, before the earliest report. No founder or scientific team is named. The terms set a minimum age of 18, while the October 15 checkout specified 21. The displayed contact email uses onedaycompounds.com, but its link uses byoneday.com; the laboratory client record and contact page also list different telephone numbers.
05
Payments and shipping
The October 15, 2026 checkout offered Visa and Amex, Apple Pay, Google Pay, an alternative card form, same-day bank payment and Zelle with 5% off. The default card gateway excluded Mastercard and Discover. Shipping to the United States and Puerto Rico cost $10.95 for USPS Ground, $14.99 for 2 Day and $49.99 overnight, with a preselected $3 protection add-on. The store advertises free U.S. shipping from $250 after discounts and same-day dispatch before 4 PM Mountain; its shipping terms also allow 1–2 business days for processing. Sales are final; wrong or damaged items must be reported within seven calendar days. The store requires an account. Code peptideprices gives 10% off.
Strengths
113 report records with endotoxin and heavy-metals testing; 106 include culture sterility
71 official laboratory matches and 48 exact current product certificates
Trustpilot 4.8/5 from 78 reviews
Named Utah operator, card and wallet payments, and verified 10% coupon
Watch-outs
One historical GLP-2T original is viewable at its source but unavailable to download
A historical GLP-3R report has different measured-content values across versions; a CJC no-DAC report is an earlier issue
Five offers have no exact certificate: CJC-1295 No DAC 5 mg, GLOW capsules, Selank spray and the two Adamax 1032 Grade offers
Account required; sales are final with a seven-day damage or wrong-item claim window
Details
Payment methods
Visa/Amex
Apple Pay
Google Pay
Alternative card form
Same-day bank payment
Zelle
Shipping
USPS Ground $10.95; 2 Day $14.99; overnight $49.99.
Free U.S. shipping from $250 after discounts.
Same-day shipping on orders placed before 4 PM Mountain (store banner); shipping terms state 1 to 2 business days of processing.
Listed package price before coupons, any vial size. This is not the coupon-adjusted lowest 10mg price used to rank the comparison.
Cheapest$78.00
2nd cheapest$85.00
3rd cheapest$95.00
4th cheapest$99.99
5th cheapest$100.00
28 collected days and prices
Cheapest in-stock listing prices by collected day
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Frequently asked questions
Is OneDay Compounds legit?
Yes. OneDay Compounds publishes extensive ILS Laboratories and Vanguard Laboratory testing, with endotoxin and heavy-metals results across 113 report records. Seventy-one match official laboratory records, and Trustpilot showed 4.8/5 from 78 reviews on October 16, 2026. The store requires an account; specific report-version differences and final-sale terms are detailed below. OneDay Compounds scores 8.5/10 on PeptidePrices' evidence rubric: 40% COA practices, 20% community reputation, 20% transparency, and 20% operations. Affiliate relationships are disclosed on this page and are not a scoring factor.
Does OneDay Compounds have a coupon code?
Code peptideprices gives customers 10% off with peptideprices. Use the PeptidePrices referral link on this page and confirm the discount at checkout.
Where does OneDay Compounds ship?
OneDay Compounds ships to United States and Puerto Rico. USPS Ground $10.95; 2 Day $14.99; overnight $49.99. Free U.S. shipping from $250 after discounts. Same-day shipping on orders placed before 4 PM Mountain (store banner); shipping terms state 1 to 2 business days of processing.
Does OneDay Compounds publish COAs?
COA verified. 71 issuer-matched records; 48 of 53 offers have an exact certificate.
What do customer reviews say about OneDay Compounds?
[Trustpilot](https://www.trustpilot.com/review/onedaycompounds.com) showed 4.8/5 from 78 reviews on October 16, 2026: 95% five-star, 4% four-star and 1% one-star. Positive accounts describe fast delivery and easy ordering; one damaged-vial reviewer received a replacement in two days. The one-star review alleges heavy metals and a missing ingredient based on private testing. The company replied that no order number, lot or laboratory report was supplied, and none was posted. The company invites reviews and has a paid Trustpilot subscription. Peptide Critic includes one July 2026 user review (5/5) about fast shipping and a forum account of promptly corrected order glitches. PepReviewPro’s 88 five-star entries appear on a vendor-managed affiliate page and are separate from independent customer feedback.
Numerical target purity spans 97.98%–99.96% across 77 report records. Another 36 give comparator bounds. NAD+ target purity is separate from total chromatographic purity.
What is the OneDay Compounds coupon code?
Use peptideprices for 10% off.
How many OneDay products have a matching certificate?
48 of 53 reviewed offers have an exact compound, strength, unit and formulation match. The remaining five are CJC-1295 No DAC 5 mg, GLOW capsules, Selank spray and the two Adamax 1032 Grade offers.
