L'oreal Root Cover Up

I am so excited to receive my first Influenster Voxbox. It is the L'oreal Root Cover Up Spray which is a one-time washoff grey hair concealer. The product offers 6 different shades: light to medium blonde, dark blonde, light to medium brown, red, dark brown and black. I received the shade in light to medium brown which is a pretty close match for my recently dyed medium brown hair. I do not have grey hair but my natural hair color (browish black) shows through after about one and half month. This product arrived at perfect timing and I can put it to test. Here are the before and after pictures: As my root (my natural color) is darker than the spray, the spray doesn't exactly lighten my root to match my dyed hair color but it does act as a blending product to make my root less noticeable. I could image that it will work well on grey hair. I would recommend to give it a try if you have grey hair. I received this product from Influenster for review/test purpose. All opinions are my own.