You need to cruise through the skin care center of your local cosmetics/beauty/whatever store. If you put in only enough water to keep things moving, rather than creating an unsaturated solution, sugar and salt work very nicely.

Couple that with the added benefit of being water soluble, cleanup after using the product is especially easy. Scrub and rinse (and gently scrub) until you can't feel the product. It's self-documenting. :-)