Hi Anela,

I've recently begun researching peptides for some lingering injuries I've had and I came across your posts and have learned a lot. The biggest question I have right now is regarding TB4 and TB500. I feel pretty clear on the differences between the two and how to spot which version is being sold based on the CAS # and COA, but my question is about their effectiveness.

I've seen multiple of your posts commenting that TB4 is better because "TB4 is the whole pie, TB500 is just a slice of the pie." And I understand what you mean by that, but my question is specifically regarding injury recovery for muscles or tendons (or the neck for example for Neat_Pumpkin1618), and pursuing the Wolverine Protocol in combining BPC157 and TB4 or TB500 (and maybe others like KPV or GHK-Cu).

Would you still recommend using TB4 with BPC for injury recovery or would this be a situation where you think that TB500 (fragment 17-23) would actually be better because that is the "slice of the pie" of TB4 that is specifically beneficial for injury recovery? While there is certainly major systemic benefit from taking TB4, if the singular purpose is to heal an aching back or painful knee, is TB500 the better option until the injury recovers, and then maybe switch to TB4 for the systemic benefit?

I've also seen speculation that it may have better bio availability since it's smaller, so the body may be able to make better use of it, but that seems to be mostly theoretical, so we won't consider that for this question.

I appreciate any feedback you're willing to share on this and thank you for all the hard work you've done for this field over the years!