I have tried the SM mousse, and I have also tried the Deva mousse! Although my hair is not fine, it occasionally seems to get weighed down, thus my mousse purchases.
I bought the SM mousse first, and I have to say that although I love absolutely everything else in their line (esp their new cowash), I wasn't a huge fan of the mousse. That is to say, I didn't dislike it, but I was just kind of neutral. It seems to be conditioning and non-greasy, which is great, but it doesn't seem to DO anything to my hair, if that makes sense. I was slightly crunchy after using it, and that's the only effect I could discern.
The Deva mousse, on the other hand, has definite effects. It holds my hair in position almost as well as a gel and it seems to be curl-enhancing (although I don't know if that was the mousse or just a good dew day, lol). Thus far i have definitely preferred it to the SM.
Having said this, I've only given the SM two tries, so I'll update if I try it again! I've seen a couple other reviews floating around; hopefully those folks and others will chime in!
Originally Posted by Hootenanny
My hair also isn't fine and I usually detest mousses, but this one I want to try simply because it's by SM. However I did restrain myself to ordering only one bottle. I'm buying it for my mother.That is how I'm justifying the purpose. Should I happen to drop by her bathroom counter one day and some mousse accidentally happen to foam itself all over my hair, well, that's just serendipitous, isn't it?

P.S. I also bought the Yucca conditioner. But it was BOGO people!
3A - C, HP, ME, HD. (Coarse, High Porosity, Medium Elasticity, High Density.)

CG since Nov. 2012

Poos: SM Moisture Retention + Yucca Baobab, TJ's Tea Tree Tingle
Condish: TJ 'sTea Tree Tingle*, SM Moisture Retention* + Curl & Shine + Yucca Baobab, Yes to Blueberries
Stylers: KCKT*, SM Curl Enhancing Smoothie* + Curl & Style Milk*, KCCC*, FSG*, CJ Pattern Pusha, Curl Keeper
Sealers: Jojoba* or Grapeseed* oil

* = HG