Today I applied for the first time the number 1 from Syoss in a 40% ratio along with 40% of number 3 from another company and a 20% of number 4 because I like it to come out as a natural dark brown. I did notice a lot of hair strands in the combing, but I had some knots in my hair so I don't know. The truth is that I was concerned when I read negative reviews here, so I will be cautious with the product.

Stay away from this specific hair dye. Its coverage is satisfactory, but what good is it if it leaves hair on your head? It is extremely damaging, as it causes terrible hair loss and irritation. Its smell is overpowering. Very poor quality. It should be sold as a depilatory cream rather than a dye. They must have mixed up the production lines at the factory. Stay away, so you don't cry over your hair, like I did... I wasted all those years. Damn Syoss.

I have bought all the black-blue hair dyes that are available.. Like no other..
Just in the first few days, it fades onto towels (like all black ones, of course) so be careful!

I bought this specific hair dye a few days ago and I dyed my hair. Two days later, I have a scalp full of irritations, itchy and it has caused dry skin from scratching and wounds. Additionally, my head and eye on the right side are swollen, resulting in me taking antihistamines and using ice. I had the worst reaction you can have with hair dye and I would not recommend it to anyone. Beware of the ingredient PPD in hair dyes! I always used regular dye and never had such problems. From now on, only natural ones!

It hardened my hair too much, it has a strong smell, I used the number 6.8 and the expected shade did not come out, it barely dyed the whites, it dyed all the other cabinets, towels, and clothes except for the whites!

When I first noticed some white hairs, I was quite young (23 years old). I didn't know much about hair dyes, and I didn't know about other brands either, so I started with this one. The color came out very nice and suited me. The fact that it faded with each wash seemed normal to me since I didn't have anything to compare it to. As I grew older, I turned to other brands and that's when I noticed the difference. The white hairs are not fully covered by any dye. Nevertheless, I do notice significant differences in the duration and the feeling it gives me during application. I would only recommend it because of the price.

The shade is much lighter and more intense than it appears in the photo, it constantly fades from the hair until the next dyeing. It doesn't come off clothes, it even fades on pillowcases. I bought a different brand and dyed them again so I wouldn't see it, and to minimize the damage from the color that comes off everywhere.