Do I need to microwave it for 20 seconds?

Microwaves wattage may vary so you can microwave your Manta STEAM Mask for 5 more seconds to increase the warmth. But don’t microwave for more than 30 seconds as this could cause injury or damage the mask.

If your microwave doesn’t have a rotating tray, start with 10 seconds. Remove the eye cups, flip them over, then continue microwaving for 10 seconds. If you live in a dry climate, sprinkle a few drops of water on the eye cups before heating them.