Razor, according to Brightwell is a polymer based product. It's not bacterial. It seems to be a flocculant. So it's very different from Vibrant in that sense. This seems to be supported by the lack of instruction to turn off UV and skimmer as opposed to Brightwell's other bacterial products.
MicrobacterClean on the other hand is a bacteria based product that's intended for (as name implies) cleaning the tank. In that way it seems to be more like Vibrant.
While from their product descriptions, Vibrant and Clean seem to be similar products, I'm not sure if that's a fair comparison. If you follow people's experiences with Vibrant, talks with Vibrant creator and BRS TV investigates episodes, it would seem Vibrant bacteria somehow directly affect algae. Including macro-algae such as chaeto.
Clean on the other hand just seems to help degrade detritus etc.