Eternal Elixir
Level 16 Alchemist

Prerequisites: Extend Elixir

Your body readily accepts and retains minor changes. When you drink one of your alchemical items that has the elixir and infused traits and a duration of 1 minute or more, you can make the elixir’s duration indefinite. You can do so only if the elixir’s level is half your level or lower. If you later consume a different elixir and make it indefinite, the effect of the previous indefinite elixir ends.

Persistent Mutagen
Level 16 Alchemist

Prerequisites: Extend Elixir

You’ve trained your physical form to remain stable within the a given altered state. Once per day, when you consume an alchemical item with the infused and mutagen traits that you have crafted, you can retain its effects until the next time you make your daily preparations instead of its normal duration.