Yes, storing CBD oil in the refrigerator is a good practice to extend its shelf life. The cold temperature helps slow down the degradation of cannabinoids and prevents the oil from breaking down. It's essential to store the CBD oil in a tightly sealed, opaque container to protect it from light and air, as exposure to these elements can also contribute to the degradation of cannabinoids. Before using refrigerated CBD oil, allow it to come to room temperature to avoid any potential changes in consistency. However, it's worth noting that not all CBD oils may need refrigeration; check the product label or manufacturer's guidelines for specific storage instructions, as some oils may remain stable at room temperature.