Isopropyl Alcohol also known as rubbing alcohol is almost pure isopropyl alcohol.  This is a must have ingredient from most soap makers.  Isopropyl alcohol has many uses in soap making.  Spray it on top of cold process soap to prevent soda ash or on melt and pour to get rid of bubbles and help layers stick together.  It works great as a solvent in cosmetic formulations, can be used to disperse mica colorants or as a general sanitizer.