Each of the eaux-de-vie contained within Hennessy XO is between 10 and 70 years old, and there are more than one hundred of them contained in this fine blend of Hennessy XO. The Hennessy XO is aged for 45 years (in averag), making it an exceptionally fine-tuned selection that is bound to be one of your fondest tasting memories for the rest of your life.