There’s no reviews on this product anywhere so I’m gonna leave it here. Grey Star is complete trash. Blue/periwinkle not grey in the slightest. Now a blue toned grey i wouldn’t be upset about, but no this is BLUE. Also it’s INSANELY patchy. horrible distribution. And the part that really ticked me off, it didn’t even take to my BLEACHED roots. Unbleached, sure no problem I wouldn’t expect it to even show up. But I’m talking bleached, inside of a banana peel light yellow. And this stuff couldn’t even leave a slight mark. Save your money. Every brand is trying to make money off the semi-permanent current hair craze but stick to the ones that are known to work. And chi you should probably just stick to hair care.