Zypolene droid lubricant was once used as a very common homemade joint and servo lubricant for robot servants. After medical studies suggested the substance was the cause of cellular decay among various races, the use of zypolene decreased. It had a burning, stimulating when rubbed across the skin. For its stimulating properties, various individuals would intentionally rub zypolene on themselves.
- Star Wars Galaxies: An Empire Divided