Dr. BeckmannIntensive black cloths, for intense black and smooth fibres, 6 cloths

These intensive black cloths are perfect for reviving faded fabrics. Designed with rich, deep black and smooth fibers, they restore color effortlessly, add 2,3 for more intensive black color .Convenient and easy to use—just toss them in the wash for bold, renewed black garments. No mess, no hassle, just results. A must-have for keeping your clothes looking fresh and vibrant!

It really enhances the color of the fabric — it’s not a dye, but it improves

Estaba un poco escéptica de que funcionaran! Pero lo hice con unos jeans de mezclilla y me encantó el resultado! Si se tardó en llegar. Pero 100% funciona

it works fine but the instructions are written in german which is annoying

I bought these thinking that they would help retain the color of my black clothing. I wear a LOT OF BLACK, but since I don’t speak or read German, I’m at a loss as to how much to use these things. I’ve used them in a couple of loads of dark clothes and they haven’t hurt anything, I’m really not sure if they’ve helped either. My bad for ordering this product. I guess I was hoping for some clue in English to help me navigate this product. I’m going to stick to products with English instructions instead of just trying to wing it on my own. At the end of the wash cycle, the sheet, sans black dye sat in the bottom of the washing machine.

The box is open and wrinkled, two napkins are missing, you won't get any effect from them even if you use them all at once, they won't restore the color of things.

It’s really working

My black clothes looks like new ones. It's perfect