The masks contain iron particles  and when they come into contact with oxygen the iron slowly begins to warm, it’s a natural oxidation reaction. There are other natural ingredients that help this oxidising reaction to happen and to heat evenly; water, salt, charcoal and vermiculite.

The Lula Eye Masks are each sealed individually because once you open the pouch and air comes in contact it will start warming. It stays at a comforting temperature for a minimum of 20 relaxing minutes, so you can drift into a daydream or a deep night’s sleep.

• Dry or tired Eyes
• Digital eye strain
• Busy minds
• Migraines & headaches
• Relaxation
• Meditation
• A good nights sleep
• Travelling

The warmth helps to relax the muscles around the eyes and also encourages circulation, helping to ease tension and strain. This can also help relieve headaches and migraines. As well as the Lula Eye Mask blocking light, it’s warmth feels soothing and calming, helping lull you to sleep. Like a warm compress the warmth creates a fine moist steam, comforting the skin around the eyes and giving relief to dry eyes.

The eye mask warms quickly reaching a comfortable temperature that will last for a minimum of 20 minutes and gently fades away by the time you’ve drifted off. 

No. Do not reheat the mask in any way. The Lula Eye Mask has been designed to warm up once to a safe, comfortable temperature for the eyes, it's a natural reaction when the iron particles in the mask meets the air and begins to heat. 

This reaction can only happen once, so although it can not be reheated you can keep the eye mask and continue to use as you would a normal sleeping eye mask to block out light.