100% credits to me, Echoes.
So, you downloaded a brand new pack of Splatter Brushes by ~ka05 (It can be any brush download), and you really like how they look, but you don't know how to add them into Photoshop?! This guide is for you then!
Download:
First, your gonna want to download it, by clicking the download button on the left side of the screen if downloading it from DeviantArt.
Going through the C:
After this, put the file in this location...
Now that this is done, close PhotoShop if its open.
And reload it, your brushes should be available for use!
If you don't know how to change brushes, click the Brush tool (b), and click the two drop downs and look for the brush titled you added in :3