You need to use eucalyptus oil on your clean hair, by rubbing it. You should not directly apply it on your hair or on your scalp. It needs to be diluted by mixing it in fixed oils such as olive oil and can be mixed with a few aromatic oils. You can also use eucalyptus oil by mixing it only with olive or sesame oil.
Apply it on your clean hair, by applying it to the overall hair, and rubbing and massaging the hair, and leave it for twenty minutes. Eucalyptus oil promotes hair growth, makes the hair glossy, and is very beneficial for the hair.