Hydrolyzed collagen peptides — molecular-weight distribution, source identity, and the analytical characterization Texas research labs document.
Written for the Texas research community, this reference brings together the documentation Texas nutraceutical and cosmetic research groups gather about hydrolyzed collagen that labs from Austin to Houston, Dallas to San Antonio typically request when qualifying a new lot. Every batch we dispatch from our Texas warehouse ships with the analytical documentation described below.
Hydrolyzed collagen peptides are a heterogeneous mixture of low-molecular-weight peptides produced by enzymatic or acid hydrolysis of collagen. Research-grade reference lots are characterized by source species, average molecular weight, and amino-acid composition.
Key characterization parameters
- Average molecular weight (typically 2–5 kDa for low-MW research lots)
- Source species (bovine, marine, porcine)
- Amino-acid composition with hydroxyproline content
- Solubility profile in aqueous buffers
Pep Labs 365 ships every research peptide from our Texas facility with a lot-matched Certificate of Analysis, third-party HPLC purity, and LC-MS identity confirmation.


