With this detergent you can wash only your darkest and / or black fabrics. It is very important not to put light and white coloured clothes in your washing machine. The reason is not the NoBack detergent, but in the fabrics and mixing of the colors, ie. light fabrics and clothes can be colored, which will be extremely unpleasant for you.
The wash temperature must also match the fabric labels’ description. With NoBack detergent for black and dark fabrics you can wash your laundry between 20 °C to 60 °C.
Please do not use it at higher temperatures to avoid damaging your dark clothes. In other words, that factor is the one that will damage your dark clothes, not the detergent. It can be safely used to the highest degrees in washing machines!