rmc2, I don't doubt for a second what you say is true and that your hair is healthy and has no adverse reactions to glycerine in your stylers.
Morgan and the rest of you guys, same there. I don't doubt that it dries your hair out like heck. But I can't rule out the possibility that maybe I, personally, wasn't applying it correctly.
I'm going to try and see if I can make glycerine work for me. Maybe the best way to experiment would be to go out and buy pure glycerin and dilute it, then try to style. Anybody know of a (cheap) protein free glycerine styler so I can rule out the protein sensitivity as a possible contributor? Or I may just try doing a protein treatment and seeing if my hair gets frazzled. If it does, I'm protein sensitive. If it doesn't, I ain't. Then I could just experiment with my argan ecostyler again . . .