TESO-100 is a premium Methylated Seed Oil using a proprietary blend of cold pressed sunflower and canola oil, grown in the midwest. Due to the properties of cold pressed oil, all of the naturally occuring esters remain in tact which gives TESO-100 excellent stick and penetration. The fatty acids that remain in the oil because the oil has never been heated above 110* during the oil extraction process give TESO-100 its great properties.