Cooling bracelet targets menopause hot flushes

A cooling bracelet for menopause relief is entering Ireland’s growing non-medical women’s health tech market.

The MyCelsius bracelet, worn like a wrist watch, entered the Irish market on 7 April 2026 and has been co-developed by Aonghus O’Donovan.

It works by cooling users’ wrists by 10C in under 10 seconds and is designed to reduce the discomfort of hot flushes.

Co-founders O’Donovan, 33, and Maxime Kryvian, 37, chief executive of the start-up cooling tech company, say it has an 80 per cent efficacy rate for women experiencing one of the most uncomfortable perimenopause and menopause symptoms.

 O’Donovan spent three years researching the cooling bracelet, which lowers local skin temperature, helping the entire body feel cooler in moments of sudden heat.

The MyCelsius bracelet is a non-medical device and represents the culmination of three years of research and development.

The cooling system is claimed by O’Donovan to be five times more powerful than competitors’ devices.

O’Donovan said: “The wrist is one of the most thermally sensitive parts of your body and applying cold to it sends a signal to the hypothalamus (the body’s thermostat), to stop the sweating and flushing associated with a hot flush.”

“It uses advanced thermo-electric cooling to create a soothing, cold sensation directly onto the wrist.”

“By lowering local skin temperature, it helps the full body feel cooler in moments of sudden heat.”

It also works to counteract uncomfortable heat caused by hormonal changes or stress and anxiety.

Research in recent years has shown that almost four in 10 women in Ireland have considered quitting their jobs due to menopause symptoms.

Based in Bristol, England, O’Donovan studied mechanical engineering at the University of Limerick, which included a year in New York designing heating, ventilation and air conditioning systems for skyscrapers.

He went on to work at Dyson before moving into Formula 1 and aerospace engineering and has since applied design and thermodynamics principles to women’s health, working closely with hundreds of women to develop MyCelsius.

The bracelet has five different modes, including a night-time setting to prevent heat-induced sleep disruption.

MyCelsius worked with a community of women who were integral to shaping the product’s look, feel and functionality.