Skin care container with dual anti-rotation locking mechanism

A container cap for use with a liquid storage container having a liquid outlet, the container cap comprising:

• an annular sleeve configured to connect to the liquid outlet by at least one of a threaded engagement or a magnetic engagement;
• a mounting groove formed on a bottom surface of the container cap, the mounting groove including a fourth anti-rotation feature positioned to engage with a corresponding third anti-rotation feature of the liquid storage container;
• and
• a second anti-rotation feature positioned on an inner surface of the annular sleeve and adapted to engage with a corresponding first anti-rotation feature of the liquid storage container;
• wherein the mounting groove and the annular sleeve cooperate to prevent relative rotation between the container cap and the liquid storage container upon connection.

A method of securing a container cap to a liquid storage container, the method comprising:

• aligning the container cap with a liquid outlet of the liquid storage container;
• engaging an annular sleeve of the container cap with a connecting portion of the liquid storage container;
• rotating or inserting the container cap until a second anti-rotation feature of the container cap engages with a corresponding first anti-rotation feature of the liquid storage container located along a first concentric circular path with the liquid outlet;
• further positioning the container cap until a fourth anti-rotation feature of the container cap engages with a corresponding third anti-rotation feature of the liquid storage container located along a second concentric circular path with the liquid outlet;
• and
• thereby limiting rotational displacement of the container cap relative to the liquid storage container and improving sealing performance of the container assembly.