I use Starblend regularly and it's always worked well for me (usually with barrier spray before and after application), but I don't have a lot of facial hair so I couldn't really tell you how well it works there.
Starblend is fantastic. Only use barrier after but it holds up well. It is fine for facial hair as long as you don't mind a little in your facial hair. Its usually not noticed. A friend of mine has a full beard and it doesn't usually show on it.
I only use Starblend and I have magnificent mutton chops of doom. If you're very particular you can rub it into the skin beneath the beard by a few methods, but even when I NPC'd a Dark Elf the beard usually acts as enough camouflage so that they don't see beneath a bushy beard to see the pale skin beneath.