Nexaph - Tesamorelin/Ipamorelin purity
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Bottom line the Tesa has probably always been 97pct but the testing showed 99. Vanguard and Jano for sure are going to show lower purity results on multiple non glp peptides than other labs
I also ordered the Tesa so I guess I will find out the hard research way
@Stevepep I see. I checked Peptidology Tesa as they are one of the very few remaining stateside resellers using Vanguard consistently. Their batches are showing 99% on Tesa.
Skye and Peptide Crafters used Janoshik consistently until a few months ago. But now they too have moved to new kids around the block.
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@stevepep On Krysia's channel dedicated for labs, someone asked about degraded Tesa purity on Janoshik COAs for multiple vendors, whether Jano changed their testing or calibration, and someone from Jano said NO CHANGE.
So had Tesa API or finishing gotten worse??
This is interesting because on Khole Peter responded that they had updated reference samples on several peps a while back. I think Tesa was one of them. Cain though said it was on telegram it’s why they sent the same batch to freedom to compare results
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@stevepep On Krysia's channel dedicated for labs, someone asked about degraded Tesa purity on Janoshik COAs for multiple vendors, whether Jano changed their testing or calibration, and someone from Jano said NO CHANGE.
So had Tesa API or finishing gotten worse??
This is interesting because on Khole Peter responded that they had updated reference samples on several peps a while back. I think Tesa was one of them. Cain though said it was on telegram it’s why they sent the same batch to freedom to compare results
@Stevepep Now I'm very tempted to order a few Tesa samples from different stateside resellers who don't use Janoshik and been showing 99% purity with some other labs to send to Jano to compare. But Tesa vials retail are sold so expensive, that I'm not sure if I want to pursue this "expensive" interest in this economy!
Khole Jano reply is very recent, just 10 days ago.
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@Stevepep Now I'm very tempted to order a few Tesa samples from different stateside resellers who don't use Janoshik and been showing 99% purity with some other labs to send to Jano to compare. But Tesa vials retail are sold so expensive, that I'm not sure if I want to pursue this "expensive" interest in this economy!
Khole Jano reply is very recent, just 10 days ago.
I have Tesa from Instant Peptides who use Kovera and Nextgen who use ILS I can send you if you want to send them for a test. Both of those coa state high 99% purity.
Edit: I even have older Tesa from Nexaph from earlier this year that was tested by Jano and came back high 99% as well. Can send those same ones back to Jano and see if they still come back as 99% or less now.
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I ordered a vial of the same batch of Tesa from Ameano (while it is 50% off total) to try and see it is ok. 97.8% purity from Janoshik lab, but no other problems are detected.
I can offer you one. I have a long-term cooperative manufacturer. Their prices, quality, service and transportation are all excellent. You can check the 99.7 purity test result.
SCAMMER AND SPAM. STAY AWAY FROM THIS PERSONS RECOMMENDATIONS.
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I have Tesa from Instant Peptides who use Kovera and Nextgen who use ILS I can send you if you want to send them for a test. Both of those coa state high 99% purity.
Edit: I even have older Tesa from Nexaph from earlier this year that was tested by Jano and came back high 99% as well. Can send those same ones back to Jano and see if they still come back as 99% or less now.
@denti Thank so much. Are all of these from recent batches though?
Let me do some math. I briefly communicated with Jano customer care and they are very responsive, all replies within a day, given that there is a timezone diff. I communicated with Vanguard too, but they took longer despite being in the same timezone.
If I ever do grey buys and independent testing, I think Jano will be my choice.
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@denti Thank so much. Are all of these from recent batches though?
Let me do some math. I briefly communicated with Jano customer care and they are very responsive, all replies within a day, given that there is a timezone diff. I communicated with Vanguard too, but they took longer despite being in the same timezone.
If I ever do grey buys and independent testing, I think Jano will be my choice.
Nexaph Jano tested is from March 2026 and tested 99.8%
Nextgen ILS tested is from May 2026 and tested 99.5%
Instant Peptides Kovera tested is from August 2026 and tested 99.75%
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Nexaph Jano tested is from March 2026 and tested 99.8%
Nextgen ILS tested is from May 2026 and tested 99.5%
Instant Peptides Kovera tested is from August 2026 and tested 99.75%
@denti We probably want vials finished after Aug 2026 because that's when Tesa started coming out sub 98 purity on multiple grey vendors on Jano COAs. Also unfortunately COA dates from US resellers don't tell when the product was actually finished. If Instant COA is from Aug, Tesa API and lyophilization must have happened a few months before that.
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@denti We probably want vials finished after Aug 2026 because that's when Tesa started coming out sub 98 purity on multiple grey vendors on Jano COAs. Also unfortunately COA dates from US resellers don't tell when the product was actually finished. If Instant COA is from Aug, Tesa API and lyophilization must have happened a few months before that.
@denti We probably want vials finished after Aug 2026 because that's when Tesa started coming out sub 98 purity on multiple grey vendors on Jano COAs. Also unfortunately COA dates from US resellers don't tell when the product was actually finished. If Instant COA is from Aug, Tesa API and lyophilization must have happened a few months before that.
I think it would be interesting to see Jano retest a nexaph batch from earlier this year that got 99.8%. If it comes back at 97 and 98% then we know something has changed on Jano side and not on Nexaph side.
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@Stevepep Now I'm very tempted to order a few Tesa samples from different stateside resellers who don't use Janoshik and been showing 99% purity with some other labs to send to Jano to compare. But Tesa vials retail are sold so expensive, that I'm not sure if I want to pursue this "expensive" interest in this economy!
Khole Jano reply is very recent, just 10 days ago.
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@pep_researcher Someone I know whose rat rhythms with candy may have done this already.
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asked that question regarding the purity, the response was only glp peptides are +/- 99%
Asked whom and who said only GLPs get 99% purity?
That's not true at all. According to test results from Janoshik and other US labs like Vanguard, Trustpointe etc for other non GLP peps.
@pep_researcher Other peptides do test above 99% but the expectation that all peptides are going to be >99% is ridiculous. Look at the purity allowance for peptides in the USP. Oxytocin has a purity spec of greater than 95. That's for pharma grade. Many pharmaceuticals have puritty spec less that 99%
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@stevepep On Krysia's channel dedicated for labs, someone asked about degraded Tesa purity on Janoshik COAs for multiple vendors, whether Jano changed their testing or calibration, and someone from Jano said NO CHANGE.
So had Tesa API or finishing gotten worse??
This is interesting because on Khole Peter responded that they had updated reference samples on several peps a while back. I think Tesa was one of them. Cain though said it was on telegram it’s why they sent the same batch to freedom to compare results
@Stevepep I asked again on K-hole TG channel specifically tagging Peter and he again confirmed that they haven't changed a thing in their testing.
So Tesa manufacturing has gone to dogs overall? This is not a good news for RUO and feeds into the propaganda spread by Eff Dee Aa and Big brothers unfortunately.
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Looking to buy a kit of the Tesa/Ipa from Nexaph. I can see the quantity in the COA provided by Janoshik but there is nothing that shows the purity. Does anyone know those numbers? Also, would be first time ordering through them based on all the reviews I've read on this site. Is it necessary to send out for additional testing or can I rely on what has already been done? From what I've read most people are quite satisfied with the products they're providing. Thanks.
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@pep_researcher That was me, lol. I’ve been interested in this topic for some time now as an avid user of the Nexaph Tesa/Ipa blend.
There has been a huge back and forth about this. Many vendors have seen decreased Tesa purity results from Jano since around April/May. Claim was that they changed their testing procedure and discounted an impurity. Nexaph had their tesa retested at Freedom which came back at 99.9%. This was another instance which caused people to doubt Freedoms results. No domestic labs have shown lower purity numbers on Tesa, like Jano has.
Some vendors have not shown decreased Tesa purity though, which makes me wonder if it is an actual issue with some vendor’s Tesa, and not a change in lab testing.
Either way, the product has worked great, doubling my IGF.
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@Stevepep I asked again on K-hole TG channel specifically tagging Peter and he again confirmed that they haven't changed a thing in their testing.
So Tesa manufacturing has gone to dogs overall? This is not a good news for RUO and feeds into the propaganda spread by Eff Dee Aa and Big brothers unfortunately.
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@pep_researcher That was me, lol. I’ve been interested in this topic for some time now as an avid user of the Nexaph Tesa/Ipa blend.
There has been a huge back and forth about this. Many vendors have seen decreased Tesa purity results from Jano since around April/May. Claim was that they changed their testing procedure and discounted an impurity. Nexaph had their tesa retested at Freedom which came back at 99.9%. This was another instance which caused people to doubt Freedoms results. No domestic labs have shown lower purity numbers on Tesa, like Jano has.
Some vendors have not shown decreased Tesa purity though, which makes me wonder if it is an actual issue with some vendor’s Tesa, and not a change in lab testing.
Either way, the product has worked great, doubling my IGF.
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