When using EcoTools Makeup Brush Cleansing Shampoo;-
Dampen bristles with lukewarm water. Squeeze a small amount of shampoo onto the brush, and gently rub bristles between your fingers to create a light lather. Rinse thoroughly. Continue until water runs clear. Squeeze excess water, reshape brush and lay flat to dry.
Remember to clean brushes well with EcoTools Makeup Brush Cleansing Shampoo when switching between eye and lip products.