Knowledge & Expertise
Our Knowledge for Your Skin
In-depth expert knowledge, interviews, and background information on cooling and care.
RTL on biszet: Why Celebrities Swear by This Luxury Beauty Fridge
A camera team from RTL visited us in Cologne to get to the bottom of the biszet phenomenon. The report shows our roots, our exclusive Bavarian manufacturing — and why our luxury beauty fridge became known as a "tabernacle of beauty".
Where to Store Skincare — Dermatologist Dr. Kruppa on Temperature, Vitamins and the Bathroom
An expert interview with Cologne dermatologist Dr. Andreas Kruppa on germs, cold chains, the optimal storage temperature for vitamin C and retinol — and why the bathroom is often the wrong place for fine skincare.
Bacteria in Cosmetics & Loss of Potency: The Invisible Danger in the Jar
Expert interview with pharmacist Dr. rer. nat. B. Stockebrand about preservatives, vitamin decay and exploding bacterial cultures.