Alchemist | Barbarian | Bard | Champion | Cleric | Druid | Fighter | Gunslinger | Inventor | Investigator | Kineticist | Magus | Monk | Oracle | Psychic | Ranger | Rogue | Sorcerer | Summoner | Swashbuckler | Thaumaturge | Witch | Wizard

Animal Companions | Construct Companions | Eidolons | Familiar Abilities | Specific Familiars | Undead Companions


PFS StandardPernicious Poison Feat 2

Additive Alchemist 
Source Player Core 2 pg. 63

You can add a toxic additive to an alchemical poison to make it splash poison on its target. A poison with this additive deals an amount of poison damage equal to the poison's level if the target succeeds at its initial saving throw against it. A target that critically succeeds at its saving throw against this poison still takes no damage.

Traits

Additive:

Feats with the additive trait allow you to add special substances to alchemical consumables you create when you use Quick Alchemy to create a consumable (you can't use additives with quick vials). You can add only one additive to a single alchemical item, you can add an additive only once per round, and most additive abilities specify a subset of alchemical consumables you can add them to.