[/QUOTE]i bought Aventus decant 100ml from helder about 7-8 months ago. everything was just ok except i was wondering when i got the bottle that why the sprayer seems to be a little crooked. i used the bottle normally until about 1-2 months ago i noticed that something black is accumulating on the bottom of the bottle which mixes with the liquid when you shake the bottle and accumulates on the bottom again when you let the bottle sit. yesterday i noticed when i bought the sprayer cap off so the nozzle part was loose and started rotating.
i.e. it has been a little loose all the time i.e. it has not closed properly and it has let in air and probably therefore reacts with the liquid and therefore some black substance accumulates in the bottle. i am a little disappointed with this and i lost about 180e on the defective product. hopefully no one else will.
in this picture when i got the bottle
here is a video of the unknown black at the bottom of the bottle.