cellulose is also what makes up plant walls, i don't know about fingernails though. I think they are ok, but give me a rizla anyday over them, they aren't too harsh though. Theres also a ton of different company making them
I got a pack of Aledinha reg size papers when they just hit the market around here. I used them a couple time but not since. I just prefer my regular Smoking DeLuxe.