basil (dried)
ginseng
Caution
May cause symptoms in more sensitive people. Track your own reaction.
While whole ginseng root (dried powder) contains saponins and other components that can "trigger" the release of histamine from cells (acting as a histamine liberator), modern extracts (such as purified ginsenosides Re or Rg3) have actually been shown to block histamine in laboratory settings. Caution is recommended when introducing it into your diet.
Liberator: May trigger histamine release from mast cells independently of its own histamine content. learn more
Safer alternatives
Suitable
oregano (fresh)
Bay leaf