Tubes are common packaging solutions for ointments/creams. They aren't yet available with an integrated application aid. The brush applicator is screwed directly onto the tube and enables the user to localize the medium much better on the skin or nails. In future, liquid media can also be packaged in tubes and dispensed easily and precisely using the brush. Our development is particularly user-friendly and intuitive to use. The system significantly reduces contact between the medium and O2 and provides additional protection thanks to the excellent barrier properties of the aluminium tubes.