Most beard oil makes use glass botlles and most of them are brown. We don’t like the look of these brown bottles, so we wanted an alternative. PET has 4 advantages. 1. They are more sustainable. Sounds a bit strange, but research showed that when you take everything into account (production, transportation etc) PET won. 2. Glass bottles don’t fit through the average mailbox, so that would mean we have to ship everything as a package meaning an increased price for our customers from at least € 6,95. And you will have to wait for the mailman which personally, I don’t like. 3. Brown bottles are ugly. 4. This only came up much later in the process, but when you drop your beard oil, it will bounce right back, saving you money and glass pieces all over your bathroom.