Seems to lack substance, hence the very vague selling points, strange claims, and very basic and low-count ingredients list.
600mg inulin? Not gonna make much of a difference. Loads of mass-market commercial yogurts have 10 times that much.
20mgs vitC? C'mon, are they kidding or what? Might as well write: VitC content NEGLIGIBLE.
13.6 billion lactobacteria? That's, what, basically 1.4 * 10 to the tenth power? Uh, let's see, my basic supermarket-shelf yogurt drink (Danone Activia, plain) promises me a minimum of 10 to the 8th power live before expiration date, but that's per PER ML. As in 8* 10 to the 10th in one bottle, or 5 times more than Syntol. For about $1.30 (at least in my country), while 5 Syntol caps will run up to $3.
As to this stuff: Cellulase, Glucoamylase, Hermicellulase, Amylase, Protease, Serrapeptase - funny how it doesn't list quantities. Probably as negligible as vitC.