Inclusion Criteria:  Age range: Greater than 18 years and less than 45 years. Gender: Male or Female Ethnicities: East Asian  Exclusion Criteria:  Pregnant and/or Breastfeeding previous allergic reaction to limonene, citrus fruits, bovine gelatin, glycerin past medical history of cerebrovascular or cardiovascular disease veganism history of chest pain or shortness of breath in the past month certain medications that are CYP2C19 substrates or CYP2C19 inhibitors Non-East Asian descent age less than 18 y.o or age greater than 45 y.o