The soap is easy (lather brush it and rinse) to use, smells subtly lemony, clean the brush thoroughly, yet gently. After washing, the quick-drying brush hair is soft and fluffy - like new! - And take the product on well. I am extremely pleased and will definitely buy more this soap when it is consumed.
All in all, a very worthwhile investment: first-class cleaning and maintenance, namely for eyeliner eyeshadow over to Foundation Brush.