At the bottom end of the range as far as concentration is concerned, is eau de cologne. This is the weakest and tends to contain about 2 – 5% essence dissolved in alcohol. It is delightfully refreshing in hot weather and because it doesn’t last long, it can be frequently reapplied directly to the skin. Usually contains the essential oils, lemon, bergamot, orange and also the absolute neroli. They may also contain the essential oils lavender and rosemary. It tends to be marketed in large sizes of up to 200 ml.