US Patent No. 9,687,429 B2; The Trustees of Columbia University,
New York, have patented a hand soap, hand sanitizer or hand cream composition that achieves more than about 4 Log10 reduction from control bacterial counts within 30 seconds of contact. It is comprised of lemongrass oil, orange oil, grapefruit seed extract, citric acid, and a combination of octanediol and 1,3 propanediol. It also contains ingredients selected from the group consisting of cationic surfactants, nonionic surfactants, amphoteric surfactants, cellulose polymers, cetearyl alcohol, behentrimonium methosulfate, stearyl alcohol, glycerin, almond oil, jojoba oil, avocado oil, silicone polymers, silicone oil and combinations thereof; and an alcohol selected from the group consisting of ethanol, isopropanol, phenoxyethanol and combinations thereof.