Cosmetics Formulation Development

Please inquire for น้ำมันเมล็ดองุ่น says it has a shelf life of 1 year if opened and can be used for 6 months. other until it is a product Will the product list be valid for a long time or add สารกันเสีย ? สารกันเสีย into that formula The product can be used for 2-3 years.

Hello, please study พื้นฐานการผสมเครื่องสำอาง Item 7, the product is said to have a 2-year shelf life, which is based on only the age of 7b. Ingredients that the company informs that the shelf life is 1 year and should be used within 6 months if stored at room temperature is based on the age of both 7a and 7b