Powder for washing colored fabrics. It has an efficient washing formula that is perfect for removing stubborn dirt at low temperatures, and also protects fabrics against limescale and other deposits on the fibers, which prevents clothes from turning gray. The composition of Tandil Classic powder has also been enriched with substances that prevent limescale build-up in the washing machine and allow for long-lasting color preservation of washed fabrics. The package is sufficient for a minimum of 80 washes.