Okay, I see how my comment and question is confusing. This is what chat GPT clarified for me:
ChatGPT said:
"Mostly because Tesamorelin and HGH are much different molecules to manufacture and purify. A higher reported HPLC percentage doesn't necessarily mean Tesamorelin is intrinsically “purer” or better.
Size/complexity: Tesamorelin is a 44-amino-acid peptide, whereas recombinant HGH is a 191-amino-acid protein. The longer HGH molecule has many more opportunities for synthesis/expression-related variants, truncations, misfolding, and aggregation.
Manufacturing method: Tesamorelin is generally made by chemical peptide synthesis, while HGH is commonly produced using recombinant biological expression. Biological production introduces additional host-cell and protein-processing impurities that have to be removed.
Purification: A relatively short peptide can often be separated from closely related impurities by preparative chromatography more readily than a large recombinant protein with multiple structural variants.
..."
However, it would have been nicer for you to just tell me to go look it or that I am not making any sense than to ignore my question.