I'm posting a few brief excerpts from Renpure's long response to me:

". . . .silicones are fantastic ingredients as they contribute many positive aspects to hair care. The soft silky feel and shine that they impart on the hair is un-matched by any other ingredient. This is because silicones inherently creep into all cracks and crevasses, meaning that they totally coat the hair shaft providing lubricity and shine."

"Most people don't consider silicones to be natural or organic, yet they are derived from the most abundant natural substance on the planet, sand."

"All of these dimethicones are VERY water insoluble. . . "

Yes, that is the major problem here!

Darnit, I loved that conditioner. : (