The Pulltex AntiOx Stopper is provided with a device in its inner part including a patented revolutionary system of avoiding the oxidation of the wine inside the bottle. Once a wine bottle is closed with the AntiOx Stopper, the oxidation of wine is interrupted and the oxygen is no more associated to the wine and is neither producing acetic acid nor damaging the wine. Unpleasant smell and vinegar taste wine are thus avoided. For optimal performance, please keep the bottle in vertical position.