There's no one here to diagnose it, but rates of anxiety are high, here. Your business wouldn't be lacking.

[L, who views substances as ways to push his mind and body a little further when will has given out, is certainly keen on the prospect himself.]

That being said... there are other popular potions. Is there any reason you chose to work on this one, specifically?

[He moves from the table and into the kitchen proper, to better observe Light's process.]