Hennessy Pure White Cognac is a popular but unofficial brand of cognac that is often associated with counterfeit or fake products. It is not an official offering from Hennessy, one of the world's oldest and most well-known cognac houses. The term "Hennessy Pure White Cognac" is often used to refer to illegal bottles that are sold outside of authorized distribution channels. It's important to be aware of the risks of counterfeit alcohol and to only purchase authentic products from authorized retailers. Genuine Hennessy cognacs are known for their high quality and complex flavors, and should be enjoyed responsibly and in accordance with legal drinking age guidelines.