Serious mass has any salt in it?

Well, check the ingredients and the nutritional label, if the word "salt" doesn't exist look for "sodium". Now I don't know the label of this product but I guess it's fair to say it does contain some salt. But you shouldn't consume that product regardless of its sodium content

Since I couldn't believe it I checked it out myself, assuming you meant Optimum Nutrition Serious Mass (http://www.optimumnutrition.com/products/serious-mass-p-241.html)

There's almost half a gram (410 mg) sodium per serving. Like I said, stay away from it. Looking at the ingredients, it's a shake worth of 1200 empty calories.

A normal whey protein is the only supplement I would actually recommend, albeit it's far from necessary. Optimum Nutrition is a great brand and their powders taste good but well, you don't need them but they are a cheap protein source. But it probably does have salt in it, too so right now nothing you should consume, anyway.

Regarding the ectormorph thing, no supplement will help you, only hard training, high quality rest and loooots of food will do.

Yeah don't get me wrong, not saying Gainers can't help you consume larger amount of calories without exploding but I don't think they're necessary. But one must keep in mind that as a former victim of eating 6 small portions of chicken breast + broccoli although the last thing I needed to do was to lose fat I just enjoy stuffing my face