Another Ravenwatch Headcanon:
So Elder Scrolls lore is annoyingly vague about vampire traits, but something pretty consistent in a lot of other media is that growth and aging stop entirely the day they're turned, right? And surely that would extend to hair growth as well?
So here's my dumb take... Verandis has stubble. And we know he was turned sometime in the First Era...so keeping that stubble and never shaving it off was a very conscious decision he's made daily for hundreds of years.
Or the way my brain keeps phasing it: Verandis Ravenwatch has been rocking his designer stubble for hundreds of slutty, slutty years.