Most of my knowledge of DMSO goes back to when I was a kid and people were using it for all sorts of things to rub on their skin for pain relief or performance enhancement. And then it disappeared as many sources for it disappeared. My understanding is that DMSO has exceedingly high absorption/penetration so whatever is in it or on your skin when you wipe it on is getting absorbed into your system.
I hadn’t heard of injecting dihexa, and I know it’s a bit challenging to make capsules consistently, or at least it is in this space. I suppose you could try dissolving it in DMSO and rub it on your skin, if you could measure consistently.
Edit: I guess pure DMSO is pretty cheap and available on Amazon if one was interested in experimentation. I think I just came up with a peptide cream business plan. 



