MegRhythm Collaborates with 'Cells at Work!' for Limited Edition Designs: Bringing Comfort to Your Hard-Working Eyes, Head, and Feet Starting April 4, 2026

Kao Corporation's healthcare brand, 'MegRhythm,' will release four limited-edition products featuring 'Cells at Work!' designs on April 4, 2026. These include the 'MegRhythm Steam Eye Mask' (Unscented and Herbal Scent) and the 'MegRhythm Carbonated Gel Patch' (for Head/Neck and Feet).

The TV anime 'Cells at Work!' is a personification series depicting the unknown struggles of cells within the human body, primarily white and red blood cells. The original manga series has surpassed 10 million copies in circulation and is supported by a wide range of generations.

This spring, MegRhythm is collaborating with the popular 'Cells at Work!' series. April, the start of a new life, is a season where environmental changes and tension can lead to accumulated fatigue. Just like the cells working hard inside our bodies, our 'working parts'—such as our eyes, head, and feet—work tirelessly every day. These collaboration products are designed to support those hard-working areas, providing a gentle, comfortable experience that relaxes the mind and brings a sense of well-being.

The 'MegRhythm Steam Eye Mask' gently wraps around the eyes with approximately 40°C steam, providing a soothing warmth that relaxes the mood. It refreshes the eyes after long hours of computer work or smartphone use. Available in two types—Unscented and Herbal Scent—to suit your mood and situation.

The 'MegRhythm Carbonated Gel Patch' is a patch-type gel known for its refreshing sensation. The foot version resets the heavy, tired feeling from standing or commuting, while the head/neck version provides a sharp, refreshing boost after desk work or studying. Its ease of use makes it perfect for incorporating into a busy new lifestyle.

MegRhythm, along with the world of 'Cells at Work!', gently supports you as you take on your new life with a positive attitude.

■ Product Features

MegRhythm Steam Eye Mask - 'Cells at Work!' Design

A virtuous cycle of comfort!

MegRhythm's steam circulation design:

• Maintains a comfortable, bath-like temperature of approximately 40°C.
• 1.5x higher heat retention to trap steam (*1).
• Uses extra-thick, soft non-woven fabric that expands for a snug fit, relaxing the mind and body.
• Provides comfort for approximately 20 minutes.
• Helps improve sleep quality (Gold certified by the Sleep Healthcare Council's Sleep Support Certification System).

※Not a medical device.

*1 Compared to previous company products.