All Hair have 1inches area bleached knots at front for closure,frontal and Wigs, So please DO NOT BLEACH the knots again, Otherwise bring a series of problems, we are not irresponsible！
The lace color is to match your scalp complexion not your skin tone. So you need to part your hair and see your scalp color then determine your lace color.Below info is Guidelines ,you can see it as reference.
Dark Brown: For the darkest scalp tone, Such as Naomi Campbell, Serena Williams, Kelly Rowland.
Medium Brown: For Beige scalp tones ,Such as Ciara, Eva Mendez, Eva Longoria.
Light Brown: For Light Brown scalp tones, Such as Tyra Banks, Beyonce, Rihanna.
Transparent: For White, Off White or Cream Scalp tones. Such as Liv Tyler, Jessica Simpson.