Tesamorelin Storage Experiment: Initial Testing Is In
The results are starting to come in.
For those just joining: there's been a debate in the peptide community about whether research-grade tesamorelin should be stored at room temperature or refrigerated after reconstitution. Instead of arguing theory, I partnered with Freedom Diagnostics to run an actual degradation study.
Here's how it works:
We took two identical samples of reconstituted tesamorelin. One stays at room temperature. One goes in the fridge. Both get tested once a week for four weeks.
Initial baseline results:
  • Sample 1: 99.24% purity
  • Sample 2: 99.25% purity
Essentially identical starting points — exactly what we need for a fair comparison.
I've attached the original COA so you can see the data for yourself.
Over the next four weeks, we'll track whether purity holds, drops, or differs between the two storage methods. No speculation. Just numbers.
Big shoutout to Ion Peptides for providing the samples for this study.
I'll post updates each week as new results come in. Appreciate everyone following along — this is how we get real answers.
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Derek Pruski
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Tesamorelin Storage Experiment: Initial Testing Is In
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