Just getting back about the Jepe's Project. The ones I've bought are the following: http://www.daz3d.com/shop/jepes-project-m4-jewels-and-tears

Looks to me like Jepe may have updated the Project M4 Body and Facial Hair to add these jewels and tears. If you look through the renders on the daz site, you'll see the hair options are apparently included. But, for the record, this is the one I bought: lthe jewels and tears. And, it does work very nicely. So nicely, in fact, that i also bought:

http://www.daz3d.com/shop/jepes-body-jewels-2

and http://www.daz3d.com/shop/jepe-s-body-jewels-3

 

I've used them all in both Poser and DAZStudio. You can add a Geometry Shell, if you like, over the Genesis or M5 character (I've used them on Genesis and M5, too, not just M4), and then add the body jewels or hair to that.

 

You can add layers, or several Geometry Shells. On one, you can have hair, on another, sweat or tears, and on a third, the body jewels.

Anyway, hope this helps.