mRNA extraction from Human Skin

[Yoshinori Miyamura]

Dear All,

To make cDNA libraly, I want to extract mRNA from human skin.

Method of mRNA extraction from human skin was described in some 
papers I read. This method seems to be traditional method.

But I can't find any company which sell human Skin mRNA.
Some company sell mouse and rat skin mRNA but not human.


Why any company do not sell human Skin mRNA? 
Is it too difficult to extract mRNA from human skin?

Thank you for any help you may provide.

Yoshinori Miyamura
miya at med.nagoya-u.ac.jp