We would always encourage you to reuse any old plastic bottles or alternatives that you can get your hands on. We have provided our bottles for life as a first step to becoming more sustainable. These bottles will be for life and our feedback from customers is that glass is not the most practical solution for bathrooms and kitchens, with animals and small children around. If you would like to use glass bottles, please use our compostable stickers on them so you know which product is which.