Pencil Blend (Citrus Free)it's good for blending coloured pencils
Jackson's Art - The smoothest shading results can be most easily achieved by using Zest-it Pencil Blend. It is a solvent that will break down the oil and wax content of pencils,
Zest-It Pencil Blend 125ml | SAA
Zest It : Pencil Blend : Citrus Free : 125ml | Jackson's Art Supplies
Solvents
How to Blend Coloured Pencil with Liquid Solvents | Coloursoft Review Update - YouTube
ZEST-IT PENCIL BLEND 250ml – WoW Art Supplies
What is Zest-it Pencil Blend and how do you use it?
Zest-it pencil blend | Product Review - STEP BY STEP ART