Whilst most colored pencils are wax based, some brands use an oil based lead, like Faber Castell's Polychromos. These pencils are very soft to apply color so will cover every fibre of the paper with their bright hues, but they are also very expensive and should only be considered if you are looking to take your art to the highest level.
The Tips and Tricks to Coloring with Pencils. Now you know which pencils are good for coloring we will give you some tips and tricks, that everyone who picks up a pencil should know. Add paper and get smoother coloring! It is a simple rule, but get into the habit of adding two or three sheets of plain paper underneath your coloring page.