Check the authenticity of your bottle of Château Palmer or Alter Ego.

The rare and exceptional nature of Palmer has led us to tighten the authentication and protection procedures for our wines.
That is why we decided to use the Prooftag system from now on for all bottles of our wine.

The red seal:

Each and every bottle of Château Palmer and Alter Ego is marked with a seal of authentication affixed by the estate before shipment. The seal is pre-registered in a database and consolidates relevant information about each bottle; the database is then accessible to consumers.

This seal is affixed on every bottle of Château Palmer and Alter Ego stocked in the cellars of the Château. Red, it guarantees the authenticity of your bottle and provides its date of departure from the estate.

The black seal:

This seal is affixed to bottles of Château Palmer or Alter Ego that are reconditioned at the estate. Black, it guarantees that our technical team controlled the wine's quality then proceeded to recondition the bottle. This process systematically includes the use of a new cork as well as the replacement of the label, if need be.


1 - The presence of this intact seal on an undamaged capsule means that the bottle was not opened after it left the château and that the contents actually match the label.
2 - This seal consists of a Bubble TagTM* corresponding to a unique identifier for each bottle, associated with an alphanumeric code and a QR code.


In order to validate that your bottle is authentic, compare the Bubble TagTM with the one registered on the Château Palmer web site.

Enter the code of the bottle to authenticate:

You can also access the Bubble TagTM registered at the Château by scanning the QR Code (photo of QR Code) with your smartphone using the application of your choice (Mobiltag, i-nigma, i-proof, etc.)

In case of problems with this authentication, please contact us:
- by e-mail:
- by telephone: +33 (0)5 57 88 72 72

* Bubble TagsTM consist of a translucent polymer with bubbles randomly self-generated in the middle due to a physical reaction.
This constellation of bubbles is absolutely unique. It forms the identity of each bottle and defines a sole possible identifier.