Like any other skincare product, facial oils do have an expiration date. While they are generally known for their longevity, it's essential to keep track of the expiration date to ensure the product's effectiveness and safety. Here's what you need to know about the shelf life and expiration of facial oils: Shelf Life: Facial oils typically have a longer shelf life compared to water-based skincare products. The shelf life can vary depending on the formulation and ingredients used. However, most facial oils, like Water Oil have a shelf life of 6 months to 3 years. Expiration Date: Facial oil bottles usually have a PAO (Period After Opening) symbol, which indicates how long the product remains usable after you open it. The PAO symbol looks like an open jar with a number and 'M' inside it. For example, '12M' means the product is good for 12 months after opening. Water Oil has a 3 year shelf life unopened and a 1 year shelf life after opening. Factors Affecting Shelf Life: The longevity of facial oil can be influenced by several factors, including the quality of ingredients, packaging, exposure to air, light, and heat. Natural and organic facial oils may have a shorter shelf life compared to those with synthetic preservatives. Signs of Expired Facial Oil: Expired facial oil may undergo changes in color, consistency, or scent. It might become cloudy, develop a rancid smell, or separate into layers. If you notice any of these signs, it's best to discard the product. Proper Storage: To extend the shelf life of your facial oil, it's crucial to store it correctly. Keep it in a cool, dry place away from direct sunlight and heat sources. Close the bottle tightly after each use to minimize exposure to air. Patch Test: Regardless of the expiration date, it's essential to perform a patch test before using any facial oil on your skin. This helps ensure compatibility and reduces the risk of adverse reactions.