OK, I got it - GOOD for food, BAD for hair

So, once I convinced myself that it wasn't plastic wrap made from pelican skin, I became concerned that it might be made from DANDRUFF 


BTW: Some folks soak their hair in antipelliculaire compounds AND then wrap it in pellicule plastique to combat dandruff. Huh. Oh, and "Saran" is not as innocent as it sounds. Google it.