I will be doing a nude shoot, where I want the model's skin to have a very soft "shine" to it. Just enough to enhance the highlights of her muscle tone. But, it's very important that it doesn't make her skin slippery, as some of the poses will require friction between parts of her body, in order to hold the pose. Specific brands would be helpful. Thanks!

#1 recommendation, Charlotte Tilbury Supermodel Body! Just see for yourself.
http://www.charlottetilbury.com/us/prod … -body.html

A less expensive alternative,
Khiel's Creme De Corps! Supermodels have been donning this for years!

Try whatever you decide to use before the shoot. One possibility is a spray for hair that uses olive oil as the base. Cheap in any drug store.