(1) It has a certain scent type, aroma or fragrance characteristics.
(2) There are certain perfumes (sometimes including: carriers, auxiliary materials, solvents or other additives) mixing ratio and preparation process.
(3) It is safe for the human body (for external use or internal use).
(4) Adapt to certain flavoring application requirements (including suitable flavoring process conditions, price requirements, etc.).
(5) It should be compatible with the performance and utility of the flavoring medium, and can maintain a certain degree of stability and durability.
(6) To meet the prescribed dosage form.