Consider your time valuable? Don’t waste it cleaning up dripping castor oil dropper bottles & figuring out where to store sticky used brushes! Our custom tube has been designed to be convenient, quick & easy for your busy lifestyle! If you are looking to use castor oil for your skin or scalp, buying a dropper bottle can be a great option! However, if your main use is going to be for eyelashes and eyebrow hair growth – a dropper bottle can be a mess. A quick search through product reviews shows that the droppers leak everywhere, it’s difficult to use the disposable brushes because they pick up too much oil and they are a thick oily mess to clean and store. Turning what should be a minute routine for applying oil to your brows and lashes into a 5 – 10 minute affair, and who has that kind of patience before bed?