It is perfect, you just have to be careful, for example if you bought a beige fabric thinking it was white, using it will make it beige again

Effective. It may potentially alter the original color of the fabric, quite evenly though. I dissolved it in a basin with warm water and left the clothes inside for several hours. I don't know if less or more exposure would work better.

The product works as long as the fabric is placed in a basin with warm water and left for a few hours so that the powder can do its job. It is not suitable for machine washing. (Because the fabric does not stay in the water with the powder for hours.) The packaging is 150g (2 sachets of 75g each). Minus 1 star due to the overall purchase price.

It works wonders. Especially on white.
The reason I give it 4 stars is because it fades the colored ones.
The pink turned orange. Thankfully, evenly

I have been using this product for the past few years and I can say that it is effective. I now buy it and keep it in the cupboard in case of emergency. Personally, I believe that you should use it immediately when the fabric is wet in order to have a result. I made the mistake of letting it dry and unfortunately, I couldn't completely remove it, but it came out immediately on a wet blouse. It also says in the instructions not to expose it to sunlight after washing and to avoid spreading it. If you follow these two steps and of course the instructions, you will see results

Buy it without a second thought, it works wonders. It saved my brand new white sweater that got stained blue in the washing machine (from jeans)