So I've noticed the lace is a slightly darker color than my skin, I am very fair skinned. What makes it disappear? I haven't officially attached a unit or had it cut in, but I cut off a section of lace and glued it to the back side of my arm (the hairless side) and it most certainly didn't disappear, it was VERY visible. So how would it be any different on my head? If I had darker skin I could imagine it vanish... but on light skin is it going to be noticeable?