The perfect grainy brush can be hard to come by... 

that's why I created my very own custom Photoshop brush that achieves a beautifully textured, build-able grainy effect that I use in all of my illustration work. (Now available as a Procreate brush too!)

The grainy shading tutorial in the video below goes through my step-by-step technique and process when it comes to getting the most out of the brush. I know you will love it as much as I do!