It works 100%..ATTENTION! It lightens your own color!! If you have a brown base or darker, it turns slightly reddish. DON'T expect it to make them blonde ash! Also, ATTENTION, it needs good combing afterwards to spread evenly..

Having naturally blonde hair and simply wanting to lighten the color a bit, I proceeded with the current purchase of this particular product. Unfortunately, I realized that it changed my color and even though I stopped after 3 uses, it has ruined my color and I am now waiting to see how and when this yellowness will go away. I would not recommend it under any circumstances.

The product does exactly what it says and does it well! Natural hair lightens according to its undertone, cool results require technical processing.
A natural brown will become honey... not ash blonde.

They assured me at the pharmacy that it is a herbal and safe product, but after applying it to light brown hair, it turned orange. It looked unnaturally lightened, so I checked the ingredients and found that it contains hydrogen peroxide. It also has an unpleasant strong smell. It is anything but a herbal product and has a very bad result, completely ruining your natural color.

I applied it to natural brown hair and it started turning orange. Fortunately, I noticed it on the third application and didn't use it again.

It does what it says, it opened up my hair, natural result, very nice product, I use it in combination with the rest of the series, shampoo and conditioner.

The smell is the only thing that is not particularly pleasant, but it's ok.

it does exactly what it promises with great success!
pay attention to your color base! not all of us are Swedish for our base to come out as ash!
obviously when there are warm undertones underneath, the color will come out more orange or copper.
it really lightens the color by two tones, with or without sun!

the only negative is that although it is a natural product, the smell of peroxide is strong! but having tried other more "natural" products, its effectiveness is exactly due to this!

The product did what it promised. It lightened my natural hair by 2 tones (like sun exposure), I did not apply it to the roots but from the middle to the ends of the hair. The comments I read about the hair turning yellow concern:
1) the color of the natural hair and whether it has been dyed
2) the illusion that exists, that the hair will turn silver (something that does not happen without chemical processing - purple conditioner)

My hair has been natural for years, I put this nonsense on and it turned orange. Don't buy it for anything!!!!!!