Smaller stains on leather sofas can be removed using a dry cloth or mild soapy water.
Larger stains require the use of a special cleaning agent for leather.

Even though this is not an active cleaning agent, it is recommended to test it first on a less visible part of the sofa. Cleaning agents containing alcohol, acetone, turpentine and petrol, or nitro-based cleaning agents shall not be used.

At least once a year, it is recommended to use a suitable protection cream for leather sofas, which moisturizes leather and increases its softness.
Preferably, this should be done in autumn, as during the winter, the air in living spaces is drier due to heating.