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ForumsCOA & Analytical TestingMass spectrometry for peptide identity verification — March 2026

Mass spectrometry for peptide identity verification — March 2026

hannah_MT Wed, Apr 16, 2025 at 7:00 AM 26 replies 1,892 viewsPage 1 of 6
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hannah_MT
New Member
23
89
Feb 2026
Bozeman, MT
Apr 16, 2025 at 8:25 AM#1
Great news for the community — Finnrick Analytics has expanded their free testing program for 2026. If you haven't heard about this, here's the deal: Finnrick will test your peptide sample FOR FREE under certain conditions. This is part of their mission to build a comprehensive vendor quality database and promote harm reduction. Currently eligible for free testing: - Semaglutide - Tirzepatide - Retatrutide - Survodutide - Cagrilintide Requirements to qualify: 1. The sample must be from a vendor NOT already in Finnrick's database (or a vendor with fewer than 3 existing test results) 2. You must provide proof of purchase (order confirmation, not payment details) 3. Sample must be sent within 30 days of receipt from vendor 4. You agree to have results published on Finnrick's platform and shared with the community 5. One free test per member per quarter What's included in the free test: - HPLC purity analysis - Identity confirmation - Basic quantitative estimate This would normally cost $175+ if you paid out of pocket at Janoshik or other services. Finnrick covers the cost as part of their community testing initiative. 🎉
34 2nick_newbie, DadBodDave, AmyNC_wife and 31 others
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GraceAZ_72
Member
156
678
Jan 2025
Tucson, AZ
Apr 16, 2025 at 8:42 AM#2
Wait, this is actually free? What's the catch? No disrespect to Finnrick but why would they test for free? That costs them money.
35 3CryptoCarl, MariaRD, AussieAnna and 32 others
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DebRD_ATL
Senior Member
1,678
7,890
Feb 2024
Atlanta, GA
Apr 16, 2025 at 8:59 AM#3
Fair question. Finnrick's business model is different from Janoshik's. Here's my understanding: 1. Data is their product — Finnrick is building the most comprehensive vendor quality database in the peptide space. Each free test adds to that database, which is what they monetize through premium access, vendor consulting, etc. 2. Community goodwill — by offering free testing, they build trust and loyalty in the community. Members who get free tests become advocates. 3. Vendor accountability — the more vendors that are tested, the more accountability exists in the market. Finnrick positions themselves as the "watchdog" of the industry. 4. They also offer paid services — the free program covers basic tests on specific peptides. If you want comprehensive panels, sterility testing, heavy metals, or testing of non-eligible compounds, that's paid. It's not purely altruistic, but the community genuinely benefits. I've used their free program twice and the results were legitimate and thorough.
Last edited: Apr 16, 2025 at 12:59 PM
14 21SleepDoc_PDX, RegAffairsDC, BiostatsBrad and 11 others
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jason_paloalto
Member
212
890
Nov 2024
Palo Alto, CA
Apr 16, 2025 at 9:16 AM#4
I've submitted 3 samples through Finnrick's free program. My experience: Submission 1 (Aug 2025): Semaglutide from a new vendor - Submitted online, shipped sample within a week - Results in 12 business days - Purity: 94.7%, identity confirmed, quantitative within 90% of label - Result published on Finnrick database with my permission Submission 2 (Nov 2025): Tirzepatide from another vendor - Same process, results in 10 business days - Purity: 91.2%, identity confirmed, quantitative at 82% of label (slightly underdosed) - Result published Submission 3 (Feb 2026): Retatrutide from a new vendor - Results in 8 business days — they're getting faster - Purity: 96.1%, identity confirmed, quantitative within 95% of label - Result published All three were genuinely free. No hidden charges, no strings attached beyond allowing publication. The process is smooth and the results are detailed. 👍
Last edited: Apr 16, 2025 at 2:16 PM
22 1andrew_nyc, Dr.EndoEP, GraceAZ_72 and 19 others
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BiostatsBrad
Member
456
2,345
Jul 2024
Durham, NC
Apr 16, 2025 at 9:33 AM#5
How do I actually apply? Is there a form or do I just email them?
6 4NicoleRaleigh, james_edin, FranDenver and 3 others
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