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How To Know What Batch You're Actually Getting From a Research Vendor

Score 0.857 · Account tjphuhs@gmail.com · 3/15/2026, 10:47:08 AM

How To Know What Batch You're Actually Getting From a Research Vendor from derekpruski@substack.com on 2026-03-15T14:47:08.000Z View this post on the web at https://derekpruski.substack.com/p/how-to-know-what-batch-youre-actually This question comes up a lot, so it’s worth breaking down. When you go to a vendor’s site to verify what you’re ordering, you’re typically looking at their COA page or COA library. The number of COAs listed matters — seeing multiple batches is a good thing. Vendors shou

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor

Score 0.853 · Account tjphuhs@gmail.com · 3/15/2026, 2:46:24 PM

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor from tjphuhs@gmail.com on 2026-03-15T18:46:24.000Z Sent with Spark ---------- Forwarded message ---------- From: Derek from Peptide Price <derekpruski@substack.com> Date: Mar 15, 2026 at 10:47 AM -0400 To: tjphuhs@gmail.com Subject: How To Know What Batch You're Actually Getting From a Research Vendor > This question comes up a lot, so it’s worth breaking down. > ͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor

Score 0.853 · Account oc.tjphuhs@gmail.com · 3/15/2026, 2:46:24 PM

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor from tjphuhs@gmail.com on 2026-03-15T18:46:24.000Z Sent with Spark ---------- Forwarded message ---------- From: Derek from Peptide Price <derekpruski@substack.com> Date: Mar 15, 2026 at 10:47 AM -0400 To: tjphuhs@gmail.com Subject: How To Know What Batch You're Actually Getting From a Research Vendor > This question comes up a lot, so it’s worth breaking down. > ͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏ ­͏

How To Know What Batch You're Actually Getting From a Research Vendor

Score 0.818 · Account tjphuhs@gmail.com · 3/15/2026, 10:47:08 AM

How To Know What Batch You're Actually Getting From a Research Vendor from derekpruski@substack.com on 2026-03-15T14:47:08.000Z direct COA links — all broken down by current versus previous batches. Easy to read, easy to verify. southernaminos.com/?coupon=derek [ https://substack.com/redirect/a24bace1-4b80-41aa-a3be-0fc5ff8af0f8?j=eyJ1IjoiNGl3b2U2In0.sVDxRtmZ85v8kfdamY0krRXGMy3p768BWtuZifRB-Zs ] — Code DEREK A Note on Vendors That Don’t Label Batches Clearly If a site doesn’t explicitly state wh

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor

Score 0.809 · Account tjphuhs@gmail.com · 3/15/2026, 2:46:24 PM

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor from tjphuhs@gmail.com on 2026-03-15T18:46:24.000Z six months or two years later. > That said, some vendors organize this significantly better than others. Here are a few that stood out to me when it comes to making this easy to understand at a glance. > Peptira > Peptira separates currently shipping batches from historical ones directly in their COA library, so you know upfront which batch is actively going out. In some

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor

Score 0.809 · Account oc.tjphuhs@gmail.com · 3/15/2026, 2:46:24 PM

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor from tjphuhs@gmail.com on 2026-03-15T18:46:24.000Z six months or two years later. > That said, some vendors organize this significantly better than others. Here are a few that stood out to me when it comes to making this easy to understand at a glance. > Peptira > Peptira separates currently shipping batches from historical ones directly in their COA library, so you know upfront which batch is actively going out. In some

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor

Score 0.796 · Account oc.tjphuhs@gmail.com · 3/15/2026, 2:46:24 PM

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor from tjphuhs@gmail.com on 2026-03-15T18:46:24.000Z likely what’s going out. Many vendors don’t post a new COA until they’ve fully transitioned inventory to that batch, so a freshly uploaded COA is usually a reliable indicator of what you’re receiving — even if the site hasn’t updated the labeling yet. > That said, every vendor handles this differently, which is exactly why clear communication matters so much. The standard

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor

Score 0.796 · Account tjphuhs@gmail.com · 3/15/2026, 2:46:24 PM

Fwd: How To Know What Batch You're Actually Getting From a Research Vendor from tjphuhs@gmail.com on 2026-03-15T18:46:24.000Z likely what’s going out. Many vendors don’t post a new COA until they’ve fully transitioned inventory to that batch, so a freshly uploaded COA is usually a reliable indicator of what you’re receiving — even if the site hasn’t updated the labeling yet. > That said, every vendor handles this differently, which is exactly why clear communication matters so much. The standard

Vendor Registration Received - Finnrick Analytics

Score 0.663 · Account tjphuhs@gmail.com · 2/11/2026, 12:03:05 PM

Vendor Registration Received - Finnrick Analytics from vendors@finnrick.com on 2026-02-11T17:03:05.000Z https://www.finnrick.com WELCOME TO FINNRICK! Hello T B, Thank you for registering Pups Peps with Finnrick. Your vendor registration is now active! ✓ Your free registration is complete and active Finnrick strongly encourages the use of batch IDs, visible to your customers. It is best practice, and your test results will receive higher scores if those are present. Check out our quick guide to b

Re: (No Subject)

Score 0.619 · Account tjphuhs@gmail.com · 3/26/2026, 8:54:47 AM

Re: (No Subject) from tjphuhs@gmail.com on 2026-03-26T12:54:47.000Z How do I see the testing results on your site? I went to lab results and nothing was there. On Mar 26, 2026 at 8:44 AM -0400, bffone <bffone@proton.me>, wrote: > Hello, > Thank you for your inquiry. > We currently have S10,T15,T40,R12,R15,R24,R30,R60 in stock at our US warehouse. > The following research products are available at our China warehouse: > T Series: T5,T10,T15,T20,T30 > R Series: R5,R10,R12,R15,R20,R24,R30,R60 > S S

Past, Present, and Future: How to Verify a Clean Manufacturing Process

Score 0.618 · Account tjphuhs@gmail.com · 3/26/2026, 12:51:37 PM

Past, Present, and Future: How to Verify a Clean Manufacturing Process from derekpruski@substack.com on 2026-03-26T16:51:37.000Z USP 71 testing for exactly this reason — not because the test itself is problematic, but because it can be used to imply an injectable research classification that exposes the business to regulatory risk. It’s a fine line, and the research space is still very undefined. Every company is going to have a different risk tolerance and operate accordingly. Some will opt for

Re: Turn Around Time

Score 0.616 · Account tjphuhs@gmail.com · 2/17/2026, 2:05:37 PM

Re: Turn Around Time from hello@finnrick.com on 2026-02-17T19:05:37.000Z We'll keep 2 of your 4 samples on reserve as a reference, in case retesting is needed in the future. On 2026-02-17 19:02:09, Tj Bourdeau <tjphuhs@gmail.com> wrote: So if I’m understanding you would reserve 2 of the 4 as a standard. So if I’m sourcing from multiple vendors you would need that for each vendor I use. Then how many for every subsequent test after that? Still 4 or is it then only 2 each test? TJ On Feb 17, 2026,

Research Radar Ep. 1: Payments, Peptides & Proper Testing

Score 0.613 · Account tjphuhs@gmail.com · 4/3/2026, 10:19:48 AM

Research Radar Ep. 1: Payments, Peptides & Proper Testing from derekpruski@substack.com on 2026-04-03T14:19:48.000Z View this post on the web at https://derekpruski.substack.com/p/research-radar-ep-1-payments-peptides Topic 1: Payment processing in the research space One of the most persistent behind-the-scenes headaches for research companies right now is payment processing. Vendors have been cycling through as many as seven different processors trying to find one that’s both reliable and will

If Your Favorite Vendor Has Been Quiet on Sales Lately, Here's What You Should Know

Score 0.612 · Account tjphuhs@gmail.com · 3/16/2026, 10:10:54 PM

If Your Favorite Vendor Has Been Quiet on Sales Lately, Here's What You Should Know from derekpruski@substack.com on 2026-03-17T02:10:54.000Z View this post on the web at https://derekpruski.substack.com/p/if-your-favorite-vendor-has-been Been on the phone a lot this week with vendors, and I want to give you some real context on what’s happening behind the scenes in the research space right now. If you’ve noticed that some of your usual vendors aren’t running sales as aggressively as they typica

Your sample has arrived at the rythm lab

Score 0.612 · Account tjphuhs@gmail.com · 2/12/2026, 9:57:50 AM

Your sample has arrived at the rythm lab from hello@rythmhealth.com on 2026-02-12T14:57:50.000Z Hey Timothy, Get excited—your sample is processing at the Rythm lab. Results should be ready within 72 hours. You will receive a message once your results are available. Stay healthy.

Past, Present, and Future: How to Verify a Clean Manufacturing Process

Score 0.612 · Account tjphuhs@gmail.com · 3/26/2026, 12:51:37 PM

Past, Present, and Future: How to Verify a Clean Manufacturing Process from derekpruski@substack.com on 2026-03-26T16:51:37.000Z manufacturing byproducts, USP 61 looks at living organisms that could be introduced during filling, storage, or handling. This is the forward-looking test. A product can be clean at the time of manufacture and still pick up contamination later. USP 61 is the standard microbial quality test used broadly across non-sterile pharmaceutical products and is what most researc

Following Up on the Bioglutide Sample Janoshik Tested

Score 0.609 · Account tjphuhs@gmail.com · 5/14/2026, 8:58:14 PM

Following Up on the Bioglutide Sample Janoshik Tested from derekpruski@substack.com on 2026-05-15T00:58:14.000Z View this post on the web at https://derekpruski.substack.com/p/following-up-on-the-bioglutide-sample One of the members of the community sent this over and I want to walk you through it, because it’s one of the clearest examples I’ve seen of why independent identification testing matters in this space. If you caught my Janoshik podcast episode [ https://substack.com/redirect/fa47beae-

Modified Aminos New Products — Including the KPV Nasal Spray You’ve Been Asking For

Score 0.608 · Account tjphuhs@gmail.com · 3/25/2026, 9:43:26 AM

Modified Aminos New Products — Including the KPV Nasal Spray You’ve Been Asking For from derekpruski@substack.com on 2026-03-25T13:43:26.000Z them. What makes this lab notable for nasal sprays is that they can test for net content in the bottle — not just identity and purity, but actual measured dose. The COA for the KPV spray shows 10.31mg in the bottle against a 10mg spec. That’s confirmed via HPLC with identity verified by retention time concordance against a certified reference standard (USP

Past, Present, and Future: How to Verify a Clean Manufacturing Process

Score 0.607 · Account tjphuhs@gmail.com · 3/26/2026, 12:51:37 PM

Past, Present, and Future: How to Verify a Clean Manufacturing Process from derekpruski@substack.com on 2026-03-26T16:51:37.000Z View this post on the web at https://derekpruski.substack.com/p/past-present-and-future-how-to-verify When you look at a certificate of analysis, you’re not looking at one thing. You’re looking at a snapshot across three different windows of time. Each test answers a completely different question — and once you understand that, a COA goes from a piece of paper with che

Fwd: Past, Present, and Future: How to Verify a Clean Manufacturing Process

Score 0.606 · Account oc.tjphuhs@gmail.com · 3/26/2026, 1:28:59 PM

Fwd: Past, Present, and Future: How to Verify a Clean Manufacturing Process from tjphuhs@gmail.com on 2026-03-26T17:28:59.000Z is still very undefined. Every company is going to have a different risk tolerance and operate accordingly. Some will opt for USP 71 and accept that tradeoff. Others will stick with USP 61 on the advice of legal counsel. Neither position is inherently wrong — it’s a business decision made in a space where the rules aren’t fully written yet. > What’s worth knowing: the co

Fwd: Past, Present, and Future: How to Verify a Clean Manufacturing Process

Score 0.606 · Account tjphuhs@gmail.com · 3/26/2026, 1:28:59 PM

Fwd: Past, Present, and Future: How to Verify a Clean Manufacturing Process from tjphuhs@gmail.com on 2026-03-26T17:28:59.000Z is still very undefined. Every company is going to have a different risk tolerance and operate accordingly. Some will opt for USP 71 and accept that tradeoff. Others will stick with USP 61 on the advice of legal counsel. Neither position is inherently wrong — it’s a business decision made in a space where the rules aren’t fully written yet. > What’s worth knowing: the co

Re:

Score 0.601 · Account tjphuhs@gmail.com · 2/11/2026, 5:08:37 PM

Re: from sophiechloe404@gmail.com on 2026-02-11T22:08:37.000Z Damn I didn’t see this. Ok that makes sense. My friend is ready to purchase. What water and syringe is it? On Wed, Feb 11, 2026 at 12:00 PM TJ Bourdeau <tjphuhs@gmail.com> wrote: > Here’s what I’m looking at. This is the COA from the supplier I am going > with. > > Janoshik Analytical > <https://verify.janoshik.com/tests/102872-Retatrutide_10mgwhite_cap_CNNDTHGYBPH3> > verify.janoshik.com > <https://verify.janoshik.com/tests/102872-Re

Re:

Score 0.600 · Account tjphuhs@gmail.com · 2/11/2026, 9:14:12 PM

Re: from sophiechloe404@gmail.com on 2026-02-12T02:14:12.000Z velvetlatte <sophiechloe404@gmail.com> >>> wrote: >>> >>> >>> >>> Damn I didn’t see this. Ok that makes sense. My friend is ready to >>> purchase. What water and syringe is it? >>> >>> On Wed, Feb 11, 2026 at 12:00 PM TJ Bourdeau <tjphuhs@gmail.com> wrote: >>> >>>> Here’s what I’m looking at. This is the COA from the supplier I am >>>> going with. >>>> >>>> Janoshik Analytical >>>> <https://verify.janoshik.com/tests/102872-Retatrutide

Complete Research Blend Breakdown: Amino Formulas

Score 0.599 · Account tjphuhs@gmail.com · 4/3/2026, 3:49:26 PM

Complete Research Blend Breakdown: Amino Formulas from derekpruski@substack.com on 2026-04-03T19:49:26.000Z View this post on the web at https://derekpruski.substack.com/p/complete-research-blend-breakdown ⚠️ RESEARCH PURPOSES ONLY DISCLAIMER ⚠️ The information below is for educational and research purposes only. These are research compounds not approved for human consumption. This post discusses theoretical use cases and dosing protocols for research applications only. Always consult with a qua

Fwd: BAC Water Amazon Testing — March 2026 | Only 2 of 11 Passed | Data Shared by Peptide Crafters

Score 0.598 · Account oc.tjphuhs@gmail.com · 3/18/2026, 9:54:30 AM

Fwd: BAC Water Amazon Testing — March 2026 | Only 2 of 11 Passed | Data Shared by Peptide Crafters from tjphuhs@gmail.com on 2026-03-18T13:54:30.000Z in potency happens gradually. You won’t necessarily know until your results don’t make sense or your vial clouds up. Hospira BAC water has a long track record, known specs, and is what most legitimate research operations reach for by default. It’s not the only acceptable option, but it’s the standard for a reason. The cost difference between Hospir