Mar 11, 2026 at 4:44 AM#2
Thanks for posting this honestly. 97.1-97.3% is still within acceptable range but the visual differences you describe (yellow tint, crumbly cake, foaming) suggest something went sideways in manufacturing or storage.
The yellow tint specifically could indicate:
- Oxidation of the peptide (exposure to air/heat during lyophilization)
- Residual solvent from incomplete lyophilization
- Degradation products accumulating
The foaming during reconstitution supports the oxidation theory — oxidized peptides tend to have altered surface properties.
This doesn't make the product dangerous at 97%+ purity, but it's definitely not their best work. Interested to hear what WWB says about it.
25 20PedsEndoPhilly, SleepDoc_PDX, RegAffairsDC and 22 others
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