Dolphin Clinic Organic Eucalyptus Essential Oil is effective against bacteria - especially staphylococci, and has a refreshing and stimulating action on the mind, helping to improve concentration. Eucalyptus oil is also very helpful when used for headaches, fevers, ailments of the respiratory tract, muscular aches and strains and in skin care. It has a soothing and calming effect on the whole body and helps with the immune system.