What does the name Kalter Bruder® stand for?

The name Kalter Bruder® (Cold Brother) stands for our intensively cooling gel, developed by twin brothers with restless legs from Lüneburg, Germany.

With its unique combination of antispasmodic/pain-relieving medicinal plants and a long-lasting, profound cooling effect, Kalter Bruder® provides noticeable relaxation for restless legs, polyneuropathy and joint problems.

Can't keep still

An estimated 40 to 70 million people in Europe suffer from restless legs syndrome (RLS), making sleep a struggle. When the body wants to rest, tingling sensations in the arms or legs appear, turning the night into a nightmare. Scientists are increasingly investigating the causes of this neurological disorder, which is thought to result from a combination of genetic and environmental factors. A common finding is dysfunction in the brain’s dopamine metabolism, disrupting the neurotransmitter responsible for regulating movement.

While the direct health effects of RLS are unclear, the indirect consequences of chronic sleep deprivation can severely impact quality of life and life expectancy. Many sufferers endure years of discomfort,...

  • Natural

  • Made in Germany

  • Tested

  • Vegan

  • Cooling

  • Skin-friendly

Restless legs with sleep disorders for 4 years.

"After taking Levod*** and no longer being able to bear the side effects, I discovered Kalter Bruder®. I was able to stop the pills immediately and finally sleep through the night again."

Sabine N., 60 from NRW Kalter Bruder® Fan since 03/2022

Severe restless legs after a pelvic fracture.

"The gel from Kalter Bruder® is pretty close to being a miracle cure - I was able to stop taking Levod*** completely and reduce the dose of Oxy**** significantly. Pro tip: it works best after a shower."

Christian S., 88 from Marktheidenfeld Kalter Bruder® Fan since 09/2023

Sleep disorders with restless legs during on-call duty.

“Since 1988, my legs have been stabbing, twitching, and tingling. In 2005, I discovered Rotigotine patches, which provided relief. Today, I also use Kalter Bruder® gel and hardly have any issues anymore.”

Sabine K., 76 from Rügen Kalter Bruder® Fan since 07/2023

Restless legs worsening with menopause

"Every evening, I do a wall-sit exercise and then rub the gel on my legs – it always works, and I fall asleep perfectly again. I’m endlessly grateful to have found this amazing gel!"

Karin V., 56 from Baar (Switzerland) Karin Veit, 56 from Baar (Switzerland)

Burning feet – tried so many things.

"The neurologist prescribed me patches and tablets where the dosage and side effects kept increasing. Of all the cooling ointments, Kalter Bruder® is by far the strongest and worth every cent."

Judith C., 32 from Vienna Kalter Bruder® Fan since 11/2022

Hot feet like sunburn on the soles.

“Without exaggeration, Kalter Bruder® has truly changed my life – the polyneuropathy in my feet and legs is improving, and the cooling effect completely eliminates pain and twitching.”

Daniela V.-N., 52 from Idstein Kalter Bruder® Fan from the very beginning (since 7/2021)

Nightly nerve pain.

"I have been taking the painkiller Tra*** for 20 years, but my body gets used to it. With Kalter Bruder®, I can reduce the discomfort as needed and have the strength to work on my garden again."

Hans W., 90 from Lower Saxony Kalter Bruder® Fan since 06/2023

Polyneuropathy triggered by chemotherapy (by Oxali***).

"My night pain disappeared immediately and since then I have been using it every morning and evening. I now even feel a general relief in my feet, legs and hands."

Matthias S., 66 from Wetzlar Kalter Bruder® Fan since 09/2023

Polyneuropathy worsens after chemotherapy.

"The doctors recommended using menthol, and that’s how I discovered the gel. I'm absolutely thrilled - no more nightly attacks, cramps or pain."

Gisela M., 79 from Winnenden Kalter Bruder® Fan since 10/2023

Polyneuropathy from the hip to the foot.

“Since I started using Kalter Bruder®, I’ve been able to significantly reduce my medication intake, and I hope this amazing product can help as many people as possible”

Gebhard v. D. from Verl Kalter Bruder® Fan since 09/2023

Barely any sensation in the lower leg after chemotherapy.

"My husband was doubly burdened with restless legs and polyneuropathy. However, daily application of Kalter Bruder® stimulates circulation, and the twitching is almost gone - we are delighted!"

Sandra & Ruud S. from Baar (Switzerland) Kalter Bruder® Fans since 11/2022

RESTLESS-LEGS (RLS) SURVEY: FOCUSING ON TREATMENT METHODS

A survey of 300 particularly affected RLS patients shows what helps and what doesn’t.

Both legs 300 replies 91.7%
Both arms 53 Replies 16.2%
Single leg 48 Replies 14.7%
Single arm 22 Replies 6.7%
Other 6 Replies 1.8%
For many years 256 Replies 78.3%
For one year 40 Replies 12.2%
Recently 31 Replies 9.5%
In bed 311 Replies 95.1%
On the sofa 234 Replies 71.6%
In the car 85 Replies 26%
At work 45 Replies 13.8%
Daily 258 Replies 78.9%
Phased 60 Replies 18.3%
Fairly rare 9 Replies 2.8%
1 1 reply 0.3%
2 3 Replies 0.9%
3 8 Replies 2.4%
4 5 Replies 1.5%
5 28 Replies 8.6%
6 31 Replies 9.5%
7 46 Replies 14.1%
LD*** 111 Replies 33.9%
None 109 Replies 33.3%
Pram***** 61 Replies 18.7%
Other 46 Replies 14.1%
1 61 Replies 18.7%
2 32Answers 9.8%
3 42 Replies 12.8%
4 24 Replies 7.3%
5 61 Replies 18.7%
6 20 Replies 6.1%
7 10 Replies 3.1%
Sports/Exercise 237 Replies 72.5%
Massages 153 Replies 46.8%
Ice baths 66 Replies 20.2%
Yoga/Meditation 53 Replies 16.2%
Creams 76 Replies 23.2%
Dietary supplements 57 Replies 17.4%
CBD 38 Replies 11.6%
Drugs (e.g. THC) 29 Replies 8.9%
Acupuncture 19 Replies 5.8%
Other 144 Replies 44%
Creams 164 Replies 50.2%
Dietary supplements 157 Replies 48%
CBD 105 Replies 32.1%
Acupuncture 68 Replies 20.8%
Drugs (e.g. THC) 36 Replies 11%
Other 50 Replies 15.3%
1

Where do you feel the tingling sensation?

327 of 327 people answered this question

Both legs 300 replies 91.7%
Both arms 53 Replies 16.2%
Single leg 48 Replies 14.7%
Single arm 22 Replies 6.7%
Other 6 Replies 1.8%
2

How long have you had RLS?

327 of 327 people answered this question

For many years 256 Replies 78.3%
For one year 40 Replies 12.2%
Recently 31 Replies 9.5%
3

When do you have the symptoms?

327 of 327 people answered this question

In bed 311 Replies 95.1%
On the sofa 234 Replies 71.6%
In the car 85 Replies 26%
At work 45 Replies 13.8%
4

How often do you have restless legs/arms?

327 of 327 people answered this question

Daily 258 Replies 78.9%
Phased 60 Replies 18.3%
Fairly rare 9 Replies 2.8%
5

How much does RLS affect your sleep and quality of life?

327 of 327 people answered this question

1 1 reply 0.3%
2 3 Replies 0.9%
3 8 Replies 2.4%
4 5 Replies 1.5%
5 28 Replies 8.6%
6 31 Replies 9.5%
7 46 Replies 14.1%
6

What medications do you take?

327 of 327 people answered this question

LD*** 111 Replies 33.9%
None 109 Replies 33.3%
Pram***** 61 Replies 18.7%
Other 46 Replies 14.1%
7

What do you think about tablets in general?

327 of 327 people answered this question

1 61 Replies 18.7%
2 32Answers 9.8%
3 42 Replies 12.8%
4 24 Replies 7.3%
5 61 Replies 18.7%
6 20 Replies 6.1%
7 10 Replies 3.1%
8

What else do you do?

327 of 327 people answered this question

Sports/Exercise 237 Replies 72.5%
Massages 153 Replies 46.8%
Ice baths 66 Replies 20.2%
Yoga/Meditation 53 Replies 16.2%
9

And which of these helped?

327 of 327 people answered this question

Creams 76 Replies 23.2%
Dietary supplements 57 Replies 17.4%
CBD 38 Replies 11.6%
Drugs (e.g. THC) 29 Replies 8.9%
Acupuncture 19 Replies 5.8%
Other 144 Replies 44%
10

What have you tried already?

327 of 327 people answered this question

Creams 164 Replies 50.2%
Dietary supplements 157 Replies 48%
CBD 105 Replies 32.1%
Acupuncture 68 Replies 20.8%
Drugs (e.g. THC) 36 Replies 11%
Other 50 Replies 15.3%

RELAXATION THROUGH COOLING

The application of cold to restless legs has interesting effects on the nervous system that can help alleviate symptoms. To understand how this works, it helps to look at the body's physiological responses to cold. So what happens to the nerves when cold is applied?

Slowing of nerve conduction velocity:

Cold slows the transmission speed of nerve impulses. In the extremities, this can reduce unpleasant sensations such as tingling, burning or pain. The nerves are less ‘reactive’, which can lead to a certain calming of the symptoms.

Reducing the inflammatory response:

Although inflammation is not necessarily a primary factor in RLS, an accompanying inflammatory response in the legs can contribute to symptom intensification....

This is where our Kalter Bruder® Relax gel makes a difference. Specially formulated for a long-lasting cooling effect, its unique recipe harnesses the fresh gel of the aloe vera plant and arnica, both known for their anti-inflammatory and soothing properties. Key ingredients like menthol and camphor enhance the cooling effect, helping to relieve pain and reduce swelling.

Kalter Bruder® offers a practical and efficient way to leverage the benefits of cold therapy. Its cooling effect delivers gentle, consistent deep cooling without harming the skin or restricting mobility.

THE NATURAL POWER OF KALTER BRUDER®

This unique composition is one of a kind: Our secret formula is specially developed for people with nerve, joint and muscle issues. We harness the power of nature to support your body’s self-healing process. No magic, no frippery. Simply natural.

THE NATURAL POWER OF KALTER BRUDER®

COOLS

The deep cooling effect relaxes your muscles and activates your body's natural regeneration process.

BOOSTS CIRCULATION

Increased blood flow allows harmful substances to be removed more effectively, which accelerates the healing process.

SOOTHES

The medicinal plants have anti-inflammatory properties that can relieve pain and calm nerves.

GIVE YOUR BODY THE REST IT DESERVES.

BUY NOW

The vicious circle of pills – an interview with Kalter Bruder® founder Carsten

Carsten, what motivated you to found Kalter Bruder®?

"I have been suffering from restless legs for about 10 years and at some point I was prescribed tablets that are often used for RLS. However, the side effects were so severe that I had to stop taking them. Since then, I have been asking myself what natural alternatives there are, not only for restless legs."

What is your general opinion on current treatment methods for age-related illnesses?

"The vast majority of customers who try Kalter Bruder® have already taken tablet. There is a reason why these often very desperate people are looking for alternatives to conventional medicine. Whether you suffer from chronic nerve,...

TRUE BROTHERLY LOVE

We are Carsten and Stefan - twins from Lüneburg. We ourselves suffer from RLS and founded Kalter Bruder® to offer an alternative to conventional medicine. With our gel, we’ve truly struck gold. In our magazine, we share insights from studies, provide nutrition and exercise tips, and uncover what you absolutely need to know.

LEARN MORE ABOUT US