I thought the problem with silicones was that the silicone molecules propped open the follicle on curly hair, since it doesn't lay flat like straight hair. With the bigger molecules (cyclopentasiloxane), the problem was even worse. And the reason they're drying is, since the follicle is propped open, all the natural moisture from sebum and whatnot is let out.

I'd not heard that the silicones block new moisture... I thought the problem was that they let out old moisture. That would also explain why they work well for a few days, and then your hair goes to crap.

Don't know... I just know that my hair gets crappy if I use stuff with silicone in it.
2c/3a-M-i
modified CG since July 2004.
searching for products that work...