I love xanthan gum and I discovered it through her videos. I just use mineral water, xanthan gum and olive oil (I whip, let it sit, and that's it) as my hair doesn't like humectants (guar, honey, glycerine). I just use xanthan gum until I'm satisfied with the thickness.
It turns out EXTREMELY soft, it's different from flaxseed gel because there isn't any protein and the hold has no amount of crunch (although I like flaxseed gel as well). I also use it on dry hair, on top of my leave in and for braidouts. If you have ever used KCCC... I find it has a similar feel on my hair.