This is a slightly modified version of the default dark red material for grinsegold's toenails (http://www.makehumancommunity.org/clothes/toenails_female_dark_red_natural.html), and uses the existing normals texture for the fingernails' default material. Note that the diffuse shader setting in the MHMAT makes these nails darker than what you'd get from the same diffuse texture file with a neutral setting.