tracyfromqsc
Subscriber
Is it just me, or are the pucks looking higher quality? Got some T30 and some IGF-LR3, and they all look very sharply/well formed with a clean line, no breakage, no residue on the vial sides, etc. It was kind of hit or miss before, even though it all worked the same regardless.
From the pics I’ve seen I’d have to agree. This might be Tracy’s “chemist” who he’s mentioned a few times before the collapse, making tweaks to formulations.
Lyophilization and formulation quality is an under appreciated quality aspect of UGL peptides (about more than just appearance), mainly because it’s not something that can be assigned a number, like purity.
Vendors generally don’t tell us anything.
If it is his guy (or just a high quality manufacturer), it’s a good selling point and if Tracy elaborates on some details about the quality control steps being taken it would separate his products from competitors (and some transparency into what we’re injecting would be a nice change vs the usual silence on this).
He’s one of the few peptide / rHGH vendors who seems to have direct control of the finished product, and not just reselling.
Mannitol, sorbitol and Glycine are used in the new batchs.
Mannitol, sorbitol, and glycine are excellent for freeze-drying because they act as bulking agents, providing mechanical strength to the delicate dried cake, preventing collapse, and improving product elegance. They crystallize during the process, creating a robust structure, while also protecting sensitive proteins by replacing lost water molecules (acting as lyoprotectants) and stabilizing their structure, leading to better physical and chemical stability and often faster drying cycles.

