Can we try to sex you back to health?

Is there a particular element to a Slayer's blood? Get a minute sample of it and maybe Janet could isolate that particular element and synthesize it?

(Lalalala, ordinary high schooler here, lalalala. Pfft, right.)

Anyway, it wouldn't work ordinarily, I'd think, but if you toss in a Halliwell spell to cover the bases/add magic, it might give it the right about of supernatural oomph.