ShenziSixaxis
Article Writer
I've found that that is true. As long as I'm already hidden when I drink the potion, they never see me (same with the spell), although there are exceptions. I think it's a combo when using either the potion or the spell. Of course, if you don't have the silent cast perk when casting invisibility it makes the whole thing moot anyhow.![]()
IIRC dual casting it with the DC perk makes it last longer, so no, you can use it just fine without the silence perk.