It is, of course, important to carefully read and follow the instructions. If you have accidentally left the hair dye in longer, this is no reason to panic.

To be clear: After applying the hair dye on your entire hair, leave it in for 35 minutes. Did you use an ash shade? Or do you have very stubborn or grey hair? Leave the dye in for 45 minutes.

If you leave the 11.1 on longer the colour will lighten up a bit more and become a bit more ashier. If you let the other colours stay in longer than indicated, the colour may only become a little darker. In this case, the colour will fade a little faster. Read more about this here: The processing time of hair dye: facts and fiction. Or: Hair colour dyed too dark

If you are not satisfied with the result you can always ask us for advice.