The need to protect the increasingly sensitive contents on the one hand and the need for the packaging materials to meet the aesthetic standards of the market on the other hand. The development of the new AirShield™-Tube allows Neopac to fulfil all these requirements with one tube. The AirShield™ is a two-component valve that prevents air from flowing back into the tube when the contents are dispensed. The combination of the barrier properties of Polyfoil® and AirShield™ is perfectly suited to give maximum protection to oxygen-sensitive products, even after the tube is first opened. This ensures that the quality and effect of the products remain consistent throughout their use.