Essential Oil of Celery has a number of useful properties. Celery water is good for liver deficiency. A warm bath with eight drops is rejuvenating when you are tired. O-C841-E Warning: Essential oils are for external use only. Benefits of Celery Essential Oil Improves Blood Pressure Lowers Cholesterol Aids Digestion Supports Weight Loss Prevents Dehydration Promotes Healthy Living Natural Diuretic Chemo-preventive Natural Insecticide Antioxidant Anti-Inflammatory Antimicrobial Antibacterial Anti-Fungal