How KÜLKUF works?

Wear It

Wear the super comfortable KÜLKUF, the Smart Cooling Wristband.

Click It

When experiencing a hot flash, just press the cooling button.

Stay Cool

The rapid cooling ClimaCon® technology cools to 45°F (7°C) in just a few seconds relieving hot flashes instantly.

Kulkuf products are based on the science of cooling down your body

women-cold- body

Our bodies are designed to maintain a core body temperature

As you age, the ability to maintain and regulate body temperature can change significantly. When a hot flash occurs, your body works overtime to regulate its core temperature. KÜLKUF products are designed to reduce the stress on your body and help you cool down from within.

Patented Solution

KÜLKUF is the only patented self-contained cooling product on the market that has been shown to reduce the body’s core temperature. An independent scientific study by the world-renowned Korey Stringer Institute demonstrated a significant lowering of the core temperature with the use of KÜLKUF.

Science for a better life

The wristband was initially designed for pro-athletes and gym-goers to reduce muscle soreness from heat exhaustion and increase stamina. After a few women approached us, we began months of testing KÜLKUF on menopausal women. The results were staggering. 9 out of 10 women said that hot flashes were eliminated in under 60 seconds. We also discovered that many women and men suffer from hot flashes who are not experiencing menopause – such as multiple sclerosis, thyroid problems, certain medications, tuberculosis, HIV, certain cancers, and even stress.



Designed for Women

Ultra-compact and Efficient Temperature Control Technology

All our products are powered by our Proprietary, Patented, Ultra-compact and Efficient Temperature Control Technology which can achieve temperatures between 32°F – 140°F (0°C – 60°C) in seconds. KÜLKUF is powered by patented ClimaCon® technology. ClimaCon® technology incorporates novel and efficient heat transport mechanisms that remove/add heat to provide thermal comfort to the body. It works on the principles of the Peltier effect, embedding a thermoelectric unit with the geometrically optimized heat sinks. A highly efficient thermoelectric unit accompanied by high heat transfer coefficients is the engine that drives the system.

Proprietary and globally patented

PATENT : 8397518 B1 PATENT : 9272647 B2. Other patents pending

Instant Cooling on touch

Desired Temperature is achieved in < 3 seconds

Efficient battery life

Up to 20 uses in a single charge. 4 hour run time

Compact and Lightweight

Weight < 90 grams

Wide Temperature Range

32°F - 140°F 0°C - 60°C

women wearing kulkuf wristband and getting cooling effect
cooling directly on the wrist

Blood Flow

Blood flow through the wrist increases by 4 times during exercise or hot flash. So cooling directly on the wrist provides instant comfort and cooling to the entire body.

cold sensation

Cold Sensation

The wrist shows a greater sensitivity to temperature changes than most other places in the body, so cooling there provides instant coolness and comfort.



Sweating is the body’s way of cooling down. Since it is the one of the key points for heat dissipation, cooling at the wrist removes heat faster and ensures less sweating almost immediately.


Heat Dissipation

The under side of the wrist dissipates 5 times as much heat as any other part of the body, as can be seen by the fact that there is no hair there. So accelerating the heat dissipation at the wrist by cooling it is a very efficient way to cool the entire body.

Performance Tested by