At 1st level, a mindchemist learns how to create a cognatogen, as per the cognatogen discovery.
This ability replaces the mutagen class ability (a mindchemist cannot create mutagens unless he selects mutagen as a discovery).
At 2nd level, a mindchemist has honed his memory. When making a Knowledge check, he may add his Intelligence bonus on the check a second time. Thus, a mindchemist with 5 ranks in Knowledge (history) and a +2 Intelligence bonus has a total skill bonus of +9 (5 + 2 + 2) using this ability. The mindchemist can also use this ability when making an Intelligence check to remember something.
This ability replaces poison use.
A mindchemist may select Skill Focus (Disable Device, Disguise, Heal, any Knowledge skill, Sense Motive, or Spellcraft) in place of a discovery.
A mindchemist may learn three languages in place of a discovery.
The following discoveries complement the mindchemist archetype: grand cognatogen*, greater cognatogen*, infuse mutagen.