Healing Bomb Feat 4
Source Pathfinder Player Core 2
You can add a foamy catalyst to an Elixir of Life to turn it into a topical projectile. You can throw the elixir at a creature within 20 feet as an Interact action to heal that creature and those near it. The target is affected as though it drank the elixir, and each living creature adjacent to it regains HP from the bomb equal to the elixir's number of damage dice (3 HP for a lesser elixir of life, for example).
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
AdditiveFeats 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.
AlchemistThis indicates abilities from the alchemist class.