janoshik.com

3.1
3.1 Based on 13 reviews

...

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Average Rating

3.1

/
5

13 Reviews

5 Star
46%
4 Star
8%
3 Star
0%
2 Star
0%
1 Star
46%

All Reviews

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Review Time

SkinyZz_HD_
Lack of Clarity in Certificates

The certificates of analysis offer minimal information and lack clarity on the testing methods used or the specifics of what was tested. They only mention a percentage, such as 98%, but it's unclear what that actually means. Is it an assay? What basis was used? What testing method was applied—HPLC, NMR, or traditional titration? Moreover, there's no information on the remaining 2% or any qualitative analysis. It feels like they merely conducted a measurement without sufficient explanation. How does this differ from the certificates provided by manufacturers?

1
Date of experience: Jan 15, 2026
Hinaru
Certificates of Analysis Are Misleading

The certificates of analysis provide little assurance. There's no clarity on the testing methods used, what was specifically tested, or the context of the results. They simply state something like 98%, but what does that actually mean? Is it an assay, and on what basis? Is it HPLC, NMR, or a traditional titration method? What about the remaining 2%? There's no information on qualitative analysis either. It seems like they just measured something without adequate explanation. How does this differ from the certificates given by the manufacturer?

1
Date of experience: Jan 11, 2026
Ab Carter
Exceptional Service

Communication was incredibly fast, and the testing was reliable.

5
Date of experience: Dec 10, 2025
Damon Sanders
Top Tier in Peptide Testing

They specialize in testing peptides rather than selling them. Their customer service is excellent, and they are truly a top-tier choice for testing research peptides. It's puzzling why there are negative reviews unless someone was upset about a poor result, which is their responsibility, not the testing service's. This organization is reputable, offers great customer support, and stands firm against those selling unreliable products. Honest testing is what the peptide community truly needs. Ignore the negativity and keep up the excellent work!

5
Date of experience: Oct 22, 2025
Woulfiks40
Fast and Reliable Testing

The range of tests available is unmatched in the industry. While the service isn't the cheapest, it is highly respected, and my results arrived quickly after my samples were submitted. They would receive a 5-star rating if the ordering process were self-service.

4
Date of experience: Oct 03, 2025
Winnie Fisher
Clarification on Services

To clarify, the service does not sell peptides or operate out of a vehicle as some reviews have suggested. In fact, they are the leading peptide testing company, highly regarded in both the peptide and broader community.

5
Date of experience: Oct 02, 2025
Kent C.
Excellent Communication

Communication was great. They were easy to work with and are widely respected in the peptide testing field. This is the only place I would trust for testing.

5
Date of experience: Sep 25, 2025
Cletus Baker
Questionable Claims

They assert they test for a certain company that is known for scamming in the peptide market. Please avoid them and report any issues. There are numerous reputable sites in your area that offer third-party testing.

1
Date of experience: Aug 23, 2025
Noel S.
Not an Accredited Laboratory

They lack accreditation as a testing laboratory and do not adhere to basic standards like ISO/IEC 17025. The certificate of analysis fails to specify the tests conducted, and any raw data may be behind a paywall. The testing isn't comprehensive, as they do not use mass spectroscopy or other advanced methods for compound identification. Purity is determined based on a single HPLC run, leaving the compound and contaminants unidentified. Such practices would not be acceptable in professional quality control environments.

1
Date of experience: Jul 16, 2025
LF32
Lack of Trust

I do not find them trustworthy. They test their own peptides, which raises serious doubts about their legitimacy.

1
Date of experience: Jul 03, 2025

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