I was wondering if someone could explain why most people use just a fragment of TB4 (TB-500), instead of the full peptide? Wouldn't it be more beneficial to use TB4? Or is there a benefit to using just the fragment? Thanks.

I've read conflicting information about whether or not it is safe to combine peptides (in a single syringe) for injection. Some pharmacists say combining can change the pH, which changes the effect negatively, in the body. Are there any evidence-based resources that help guide us on what to inject alone or what can be mixed? Anyone have personal experience to share?

I’m glad to be here and trying to learn. I’m starting from the beginning and when I click on the classroom tab to get started, everything is locked. How can I gain access to all the different levels? Thanks so much.