PPM for Sublingual CDS

Does anyone have experience with a maximum practical ppm concentration of CDS for soaking under the tongue until absorbed into the bloodstream? Too "hot" would seemingly damage these somewhat delicate tissues, and I could no doubt iterate my way to an answer given enough experimentation time, but surely I'm not the first to contemplate the issue so getting into the ballpark more quickly should seemingly be possible with forum input. Thanks!

The beginning CDS dosage for Protocol-C is 10ml of 3000ppm CDS into 1 liter of water. That will be 30ppm.
The maximum recommended dosage for Protocol-C is 80ml of 3000ppm CDS into 1 liter of water. That will be 240ppm. 

Protocol-J (mouth washing) is 10ml of 3000ppm CDS into 200ml of water. That will be 150ppm. 

As normal, start with low doses and slowly increase. If you plan on brushing your teeth with a CDS solution, check the pH first. If the pH is too low, tooth enamel can be softened.