This has a very strong paint thinner smell. When using it I use 2 drops. This can be used in homemade cleaner, in a bath, diffusers or oil burners. Eucalyptus is used for antispasmodic, deodorant, decongestant and also as a anti-inflammatory. This oil is colorless. This is great for respiratory issues especially when we come into cold season with sore throats and runny noses. Everyone should have a bottle of this on hand. I received this product free in exchange for my honest review.