MegRhythm
MegRhythm is a warm-relief product brand sold by Kao Corporation in Japan.
Kao is one of Japan’s major companies, mainly engaged in the manufacturing and sales of consumer products and chemical products. The company offers a wide range of daily necessities, including laundry detergents, kitchen detergents, hygiene goods, and cosmetics. It is well known as a household-oriented company whose products are widely found in Japanese drugstores.
The name “MegRhythm” comes from the Japanese word “meguru,” which means to circulate, referring to blood circulation. Combined with the word “rhythm,” it conveys the idea of helping the autonomic nervous system relax and return to its natural rhythm. As the name suggests, the product provides gentle warmth to support circulation and relieve tension.
Using MegRhythm at the end of a long day can deliver soothing warmth around the eyes, helping ease tension and support recovery from fatigue. It can be an easy yet effective relaxation routine, especially for those who spend long hours on computers or frequently experience eye strain.
MegRhythm Steam Eye Mask
●Why is it 40 degrees?
Various studies and academic reports suggest that warm stimulation around 40°C is one of the most stable and effective temperature ranges for promoting blood circulation. Warm heat helps expand the skin and peripheral blood vessels, increasing blood flow, and 40°C in particular is known as a temperature that enhances blood flow without placing excessive burden on the body.
Thermal stimulation can increase tissue blood flow, enhance oxygen delivery, promote the removal of waste products, and help reduce fatigue and stress. These physiological responses have been repeatedly observed not only in whole-body bathing studies but also in research on localized heat therapy.
MegRhythm utilizes this principle by providing warm steam of approximately 40°C that gently envelops the area around the eyes. By warming the eye area for a short period, it naturally contributes to relieving tension and providing a sense of comfort.
●Why is it 20 minutes?
In the field of physical therapy, it is widely accepted that applying heat for 15 to 20 minutes is the most effective. The main purposes of heat therapy — reducing muscle tension, increasing blood flow, relieving pain, and relaxing tissues — are reported to appear most consistently within this 15–20 minute range.
Studies in sports medicine and other research areas also repeatedly show that around the 20-minute mark, the effect reaches its peak, with the increase in blood flow becoming most pronounced. The eye area and face, which are more sensitive, show similarly stable results within this duration, particularly in relieving eye fatigue.
MegRhythm’s heat duration of about 20 minutes follows this research trend, combining an optimal temperature with an optimal duration to effectively ease fatigue around the eyes.
●As soon as you place it on your eyes, it gently fits with the power of steam
The MegRhythm Steam Eye Mask by Kao expands with the warmth of steam, allowing the mask to naturally conform to the contours around your eyes. No matter how warm an eye mask may be, if it sits slightly away from the skin, the heat cannot be fully transmitted. MegRhythm is designed to fit closely to the shape of the eye area, ensuring that the warmth is evenly maintained across the entire eye region.
●Relax even more with your favorite scent
With the MegRhythm Steam Eye Mask, you can enjoy gentle warmth along with various scents such as yuzu, lavender, forest aroma, chamomile, kinmokusei, and hinoki. I personally buy several scents and choose one depending on my mood for the day. There is also an unscented option available, so those who are sensitive to fragrance or simply prefer no scent can choose the fragrance-free version.
How to Use the MegRhythm Steam Eye Mask
1. Take the eye mask out of its individual packet.
A box of MegRhythm eye masks usually contains 12 individually wrapped masks. The mask begins to warm up as soon as it is removed from the packaging, so it is best to use it immediately after opening.
2. Tear along the perforated line and place it over your ears.
When you tear along the perforation in the center, the mask is designed so that you can immediately hook it onto your ears. To distinguish the top and bottom, use the slit in the center of the mask — the side where the slit is longer should face downward.
MegRhythm Steam Patch
MegRhythm offers not only eye masks but also patch-type products that are applied directly to the skin. These patches are mainly used to relieve fatigue in specific areas such as the neck, shoulders, and calves, where tension often builds up. The gentle warming effect helps promote blood circulation and softly relaxes the tightened muscles.
The steam patch is a thin sheet designed to stay in place even during movement or when taking various positions. It measures 17.3 cm by 9 cm, a comfortable size to use, and provides warmth for about 30 minutes. It is especially suitable for those who want simple and convenient heat care in their daily routine.
Since this product is applied directly to the skin, those with sensitive skin should avoid using it or limit its use to areas that are less reactive. I also remove it immediately if I feel any irritation, even before the full 30 minutes have passed.
MegRhythm by Kao helps relieve the fatigue and tension that build up over the course of the day, while allowing you to enjoy gentle warmth along with your preferred scent. It is an easy-to-use heat care item that fits well into a busy daily routine, so consider using it whenever you need a moment of relaxation.
■Kao Corporation MegRhythm
Amazon Japan MegRhythm Steam Eye Mask
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