Re: how to increase muscle penetration of CS?

Sure, you can use a few drops of DMSO - just be careful to keep things clean and avoid contaminants like Zlatin said. DMSO is a very powerful penetrant that will take just about anything it comes into contact with into the skin.  I found that out the hard way when I stored a topical solutions that had some DMSO in it (along with CS, oleander extract and iodine) in an inappropriate plastic container and ended up with plasticized fingernails for quite some time.  I shudder to think of the plastic that went into my skin on my fingers and where I applied it.

Have you tried magnesium oil?  Lots of great reports of using it topically for muscle problems.  Plus, most of us are deficient in the vital mineral Magnesium.