MegRhythm’s Steam Warming Eye Mask is one of Kao’s best-known self-care products, releasing a gentle ~40°C steam that wraps the eyes and eyelids in soothing warmth for about 20 minutes — like a mini onsen (hot spring) for tired eyes after screens, travel, or a long day.
Each disposable sheet self-heats the moment it’s unsealed, using a fine iron-powder heating element — no batteries, no microwave, just open and wear. Choose from a range of Japanese-inspired scents, or fragrance-free for sensitive noses.
