Made from cardboard these tubes are a great alternative for those wishing to reduce plastic use. The simple push-up action makes it ideal for oils-based sticks and balms. The inside has a polyethylene coating to allow it to resist oils, however, it is not suitable for water-based formulations.
This type of tube requires a very hard stick/balm for the push-up function to work and different formulations can make pushing the base up more difficult, particularly in cooler weather. Gently warming the outside before application can help resolve this issue. Please make sure you have thoroughly tested your formulation before making a big batch.