Discover the story behind ajuma.
ajuma – that’s us
MBA + Psychologist with international experience in sales, innovation and product management.

Julian: PhD physicist and scientist with experience in deep space, atmospheric monitoring and IT. As an expert on UV radiation he is the man behind the UV tracker.
Portrait von ajuma-Gründer*innen Annette & Julian
Die Gründungsgeschichte vom ajuma UV-BODYGUARD

How can we protect our daughter and ourselves from too much UV radiation? It all started with this question. We are both enthusiastic outdoor fans and spend every free minute in nature. Whether hiking, cycling or enjoying a leisurely picnic in the sun. But after the birth of our little daughter, it quickly became clear to us that we want to protect our little girl from too much UV radiation and its consequences - such as sunburn and, in the worst case, skin cancer. Annette's skin is also very sensitive to the sun, so she is particularly sensitive to the topic, and even more now as a mother.

"Because just a moment too long in the sun and it may be too late."
That’s how the idea of the UV-BODYGUARD was born: a smart UV-Assistant that warns on time before it´s too late an also shows you, how long you should stay in the sun to fill up your Vitamin D level.
Infografik zur UV-BODYGUARD-Technik
That´s how the UV-BODYGUARD works

As a physicist and atmospheric researcher, Julian is very familiar with the topic of UV radiation and put the idea into practice: The UV-BODYGUARD measures the incident UV radiation. The pure sensor data is sent to the smartphone app. There, astronomical influencing factors (current position of the sun) and atmospheric influencing factors are calculated. To determine the atmospheric influence, we use the data from the Atmosphere Monitoring Service of the European space program Copernicus. This unique technology allows the UV-BODYGUARD to calculate the actual UV radiation very reliably and to the second.

We combine satellite and UV measurement data in order to give the user recommendations that are as reliable as possible and tailored to their skin type for their healthy time in the sun."

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