If you've ever woken up with puffy eyes or a puffy face, which- let's be honest here, you probably have, then ice rollers will help you cool your skin and get rid of those bags. Make sure you cleanse your skin first, then ice roll away, followed by your skin routine. You can use this for nay part of your body too, so don't restrict it to simply your face. You can roll against your neck, bruises, aching body parts- almost anything.
You're cooling your skin, reducing redness and reducing inflammation.
Use morning and night depending on your concerns. There is no strict limit on the amount of use, so long as it is kept in the fridge.
Metal roller with a plastic handle that can and should be kept in the fridge at all times.