Two brothers develop the natural solution for bursitis.

We know the feeling ourselves: joint pain, swelling and loss of mobility. That’s why we created Kalter Bruder® – a natural cooling gel that works exactly where the pain occurs.


Our plant-based formula with aloe vera, menthol, arnica, camphor and devil’s claw delivers instant cooling, calms the nerves and relaxes the muscles – without medication.


Kalter Bruder® is dermatologically tested, made in Germany and contains only high-quality ingredients. And if it doesn’t work for you: our 90-day money-back guarantee lets you try it risk-free.

Cooling relieves pain & swelling

Whether in the knee, shoulder, elbow or foot – bursitis can affect many joints and is almost always very painful. It’s often caused by overuse, pressure, small injuries or inflammatory conditions like arthritis or gout. Infections can also trigger it.


Typical symptoms: swelling, redness, warmth and limited mobility. Pain often worsens with movement and may be acute or chronic.


A proper medical diagnosis is essential to rule out other causes. In most cases, conservative treatment helps: rest, elevation and, if necessary, anti-inflammatory medication. In severe cases, drainage, cortisone or antibiotics may be needed.


Cold therapy has proven especially effective:

It reduces pain, inflammation and swelling. That’s where Kalter Bruder® comes in – with long-lasting cooling and fast relief for bursitis.

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, 32 from Vienna Kalter Bruder® fan since 11/2022

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, 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, 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 from Verl Kalter Bruder® fan since 09/2023

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, 52 from Idstein Kalter Bruder® fan since 07/2021

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, 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, 88 from Marktheidenfeld Kalter Bruder® fan since 09/2023

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, 90 from Lower Saxony Kalter Bruder® fan since 06/2023

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, 56 from Baar (Switzerland) Karin, 56 from Baar (Switzerland)

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, 76 from Rügen Kalter Bruder® fan since 07/2023

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 from Baar (Switzerland) Kalter Bruder® fan since 11/2022
  • Natural

  • Made in Germany

  • Tested

  • Vegan

  • Cooling

  • Skin-friendly

4. Cold therapy

Targeted cooling can effectively help relieve pain and combat inflammation in the affected joint during bursitis. Cold therapy slows down the inflammatory process and reduces the activity of pain receptors, providing rapid relief from discomfort.

A consistent, gentle cooling effect penetrates deep into the tissue, reaching inflamed structures while preventing the so-called “reactive hyperemia”—a counter-reaction in which the body increases blood flow to compensate for excessive cold, potentially weakening the intended effect.

However, the benefits of cold therapy are only achieved when cooling is long-lasting and evenly applied. Superficial or overly cold applications, such as ice packs, may offer temporary pain relief but often fail to reach the deeper areas where cooling is most needed.

THE NATURAL POWER OF KALTER BRUDER®

This is exactly where our KALTER BRUDER® Relax gel comes in, because we have specially tailored our recipe to a long-lasting cooling effect. The fresh gel from the aloe vera plant and arnica in particular are known for their anti-inflammatory and soothing properties. Ingredients such as menthol and camphor also have a cooling effect and can help to relieve pain and swelling.

KALTER BRUDER® offers a practical and efficient way to use the positive effects of cold therapy specifically for a bursitis. Thanks to its cooling effect, the gel provides gentle and constant deep cooling without damaging the skin or restricting mobility.

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.

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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