Re: i was wondering if there are different types of dead skin. Like is my dead

That is an interesting question.  My first impression is that the quantity 
of skin is more important the the type of skin, since all things being 
equal, skin is probably pretty similar from a nutrition standpoint.  There 
might be differences in the moisture content of different skin types, e.g. 
human vs. cow, but I suspect overall the differenes between infant skin 
cells and adult skin are minor.  Most of the differences we observe in the 
skin of infants vs. adults is due to changes in the skin below the 
surface, in the makeup of the matrix that holds skin together (collegen, 
elastogen etc.) and the health of the underlying derma.

     Dust mites themselves don't eat skin directly, it is pre-digested by 
an Aspergillus sp. fungus in a symbiotic relationship with the mite.  This 
observation alone means the type of skin is more important to the fungus 
than the dust mite.  There are a few professional publications about the 
general nutrition and modelling of this for dust mites, I have listed one 
below, but it may be too much for your needs.

Let us know if you need anything else, thanks for writing.

-Madsci-

Hamilton KA, Nisbet AJ, Lehane MJ, Taylor MA, Billingsley PF. 
Department of Zoology, University of Aberdeen, Tillydrone Ave., Aberdeen 
AB24 2TZ, Scotland, UK.

A physiological and biochemical model for digestion in the ectoparasitic 
mite, Psoroptes ovis (Acari: Psoroptidae).
Int J Parasitol. 2003 Jul 30;33(8):773-85