Avoid fade and fix the color in your new or used clothes, using the professional and ecological system of quality control and fixing of the color that I explain in this video. Avoid that clothes of cotton, linen, wool, silk, polyamide and their mixtures poorly dyed ruin your laundry and staining of dye not fixed other garments. A double system of quality control that detects badly stained clothing before it causes problems and proposes a solution to fix it improving the solidity by using tannic acid, a compound used since time immemorial as a mordant and found in roots , fruits and plants, being therefore an ecological product as well as economic and simple to apply. Stay until the end of the video and you will avoid forever the bad experience of clothes stained by badly dyed garments!