I think most bonsai soil are quite suitable for succulents, although I've seen ones with 90% soil and just a bit of grit and perlite added, so it all depends. Do you have a specific kind you're looking at? A picture or link will always help. Better yet, if you know the ingredients of that soil

The listed ingredients: haydite (expanded shale), sand pebble, aged pine bark & turface.

To me that sounds quite alright, for what plants are you getting this mix for?

"Bonsai soil" covers a lot of ground, and many bonsai soils are no more suitable for bonsai than they are for succulents. As an example, a mix of Haydite, sand, aged pine bark, and Turface from a commercial maker of soils is apt to be much different than a soil you or I might make. The reason being, a commercial soil maker usually won't screen the ingredients to a larger size so as to eliminate all of most of the perched water the soil can potentially hold. If the aged pine bark is Fafard's product, it's well adsvbanced in the decomposition process and very fine in size, if the Turface isn't screened, and the 'sand' not more coarse than .100", the mix will be very water retentive, and not a good choice for bonsai OR succulents - especially plantings in shallow pots.

Water retention is directly related to particle size, and you can't add a few large particles to a very large fraction of fine particles and expect to achieve the kind of results you would like to see. In order to get the drainage and aeration that allows you to get the most from your plants, the primary fraction of the soil should be larger particles - particles larger than .100" up to .187" would be ideal, and it would be best if they made up at least 80% of the total soil volume.

What it says ON the bag isn't nearly as important as what's IN the bag. Particle size is very important if your intent is to build soils you won't have to fight for control of your plants' vitality. Poor soils ensure limitations to root health and root function - there is no way to deny that fact; and a healthy plant isn't possible w/o a healthy root system.

Al