Why the modular system?

In conventional laundry detergents, all elements and components are mixed together. We are talking about the detergent, water softener and bleaching agent, but also optical brighteners, preservatives and perfumes. If, on the other hand, the components are part of a modular system, like in the case of Sonett 3-step washing, the respective detergent can be used in ideal dosage based on the level of soiling or local water hardness. This way you can use all elements the most effectively, which reflects in the both economical and ecological way of doing your laundry.

Sonett 3-step modular washing system

Step 1 - detergent

The first component in the Sonett modular system is the actual detergent. It neutralizes the surface tension of the water and makes certain that the dirt can be eliminated from the laundry. 

These detergents are suitable for all colored and white clothes made of cotton, linen, hemp and mixed fibers from 40° - 95°C. Not suitable for wool and silk. For these delicate fabrics, we recommend Sonett Olive Laundry Liquid for Wool and Silk or sensitive variant.  

All laundry detergents are made from pure vegetable soap with coconut oil alcohol sulphate and sugar surfactant.

Step 2 - softener

The second part of the Sonett Modular System - NECESSARY FOR THE DETERGENT! It softens water and thus creates an optimal environment. Laundry detergents are most effective in soft water of low calcium carbonate content. This softener binds the limescale dissolved in water, thus the washing substances can be fully effective. Only the really necessary amount of softener is being added to the laundry detergent, depending on the local water hardness thus protecting waters and environment alike.  


After determining your local water hardness, add the actual amount of softener needed to the concentrated laundry powder (from water hardness medium upwards) and to the liquid detergent (in case of hard water). In that way the detergent develops its full cleansing power, the natural resources are protected and the water systems need not be unnecessarily abused.

Ingredients: zeolite, citrate, soda 

Step 3 - bleach complex and stain remover

Bleaching powder is the third part of the Sonett three-step Modular System. The bleaching agent is specifically used to remove stains in case of permanent colored laundry and to be added for brightening yellowed and gray laundry. This makes white laundry retain its whiteness.

Being without any petrochemical bleaching agents, it is active from 50°C upwards. If the bleaching agent can act for longer, e.g. having the laundry soak overnight in the Bleach Complex, it is effective at as low as 30 °C.


Add the product regularly to white laundry. Very effective for removing spots and stains from permanent colored laundry. During the washing process the sodium percarbonate is being broken down into oxygen – which has a bleaching effect – water and soda. Bleaching and degradation processes are one and the same.

Ingredients: sodium percarbonate, soda


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January 14, 2024