How should I store this oil, and does it have a shelf life?

As a pure mineral oil product, it is inherently very stable and resistant to microbial growth or rancidity, which are concerns with many plant-based oils. For optimal storage, keep the bottle in a cool, dry place out of direct sunlight and away from heat sources like radiators. This prevents unnecessary thermal stress on the plastic bottle and keeps the oil at a consistent viscosity.

Cosmetics in the EU are required to display a Period After Opening (PAO) symbol—an open jar icon with a number of months (e.g., 12M, 24M). This indicates how long the product is considered safe and effective after first use. Since this oil contains no water or organic materials that easily spoil, its PAO is typically quite long. Always check this symbol on the bottle or packaging for the manufacturer's specific guidance. Ensure the cap is tightly closed after each use to prevent contamination from dust or water. If the oil's appearance, texture, or smell changes noticeably, it's best to discontinue use.