I addressed this over at CT where you posted.
I was asking, not because I care what you do with your soaps, but because it was information that *I* as a soaper wanted to have. I.e., if there came a time that I wanted to add raw milk to soap I wanted to know what the legal ramifications are.
I called some people in the NYS government (My BIL with the NY D of A "diary board," then the NYS Department of Health). Basically there don't seem to be any regulations regarding it, and that "for human consumption" means actually eating or drinking (aka ingesting) and not "using". Which was good to know. Now different states may vary.
So I was referred back to the FDA who doesn't seem to have a stance on using raw milk in SOAP. In syndet bars (many MP bases are syndet), though, there may be issues with selling (yes I know - you are not selling - but some do) due to the potential for a high bacterial load and because syndet bars are "cosmetics". But it's not something they would come after a seller for unless there was a reported problem - then, as with any cosmetic, the onus is on the producer to make a safe product.
This said, I was told that NY State DOES regulate the selling and giving away raw milk - independent of the intent of the recipient. Many other states do as well.
Let me add that I personally don't care what you do with your soap or your milk. I was asking because I wanted to understand the legal implications and hoped that you already knew. I never said you were doing anything wrong.