Great but messy
I have this in the light shade and use it to lighten my summer foundations that are the right undertone but are a little too dark. I usually pump some of my foundation on the back of my hand and mix it with some of the lightening drops. They are quite pigmented and I only need one or two drops at most. The first couple of times using this was totally fine but I noticed as time got on the packaging got super messy especially around the bottle neck and dropper. This would be a much nicer product if it had a better designed dropper or a pump to dispense the product.