(Yellow: Lightly Scented - Oil-based) (Blue: Fragrance Free - Water-based) What it is: BLJ Lightning Series Rinseless Brush Cleansing Spray is an oil-based cleaning solution designed to deeply nourish and cleanse makeup brushes. This 50ml spray efficiently removes product buildup while maintaining the softness of the brush bristles, leaving them smooth and refreshed for optimal makeup application. Product Size: 50ml Product From: Korea