Remove as much extra oil paint from your brushes as you can in the first stage. Start by using Odourless Solvent or another paint thinner in a cup or container and quickly run your brushes through it. After that, use newspaper or paper towels to gently clean them. Repeat this process until the bulk of paint is removed.
After that, clean with the Chroma Incredible Brush Cleaner thoroughly. Then wipe with a cloth after rinsing it with water, and set flat to dry.
Make sure you do it in a well-ventilated room.
[image from artnyfair.com]