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Hair and Knots

  • We bleach knots enough to help hide them, but not so much that the hair sheds too fast. It’s a narrow target range and we usually hit the sweet spot.


  • If you want to bleach your knots yourself, it’s at your own risk. Here some guidelines.
  • Buy white powder bleach from the beauty supply store and either 20% or 40% vol. cream developer. Avoid liquid developer.
  • Mix bleach powder and developer in equal quantities in a plastic or glass bowl with a nylon dye brush. (no metal).
  • Paint the resulting thick paste onto the underside of the lace.
  • After 10 or 15 minutes (visually check), wash it out from the top side and then shampoo the unit.


  • Aways wash out swimming pool water a.s.a.p.
  • Knot bleaching is a way to minimize the dotty appearance that can be seen when dark hair is tied to lace.
  • We do not offer virgin hair, or European hair for various technical reasons. We also do not accept it from the client for use in manufacturing of CoolPiece hairpieces. But the hair that we use is very well regarded by our clients.
  • Be gentle with your hair, especially when it is wet.
  • Leave-in conditioners that are alcohol-free are recommended.
  • Do not wash synthetic hair, including gray hair which is almost always synthetic, in very hot water. It is better to wash it off the head in a sink of cool water than in a warm shower. Do not use a hair dryer or any other dry heat device or the hair will be damaged (melted).
  • Avoid heat blasts from barbecues, sauna rocks etc. For extra care, get a satin pillowcase so there is no abrasion.
  • Don’t specify knotting, we use the least visible possible in all situations.
  • Ladies, baby hairs at the hairline don’t last as long as the rest of the hairs, and they expose the adhesive. Avoid ordering this feature if possible.
  • Indian hair is the best for hairpieces and wigs. 
  • Remy Indian hair is (arguably) too big in cross section, but is good for tighter perms. Remy hair is less processed. It is not from cut-off pony tails (See Mongolian below).
  • Chinese hair is lovely and has an unwarranted reputation as inferior. It is the best choice for totally straight hair.
  • Synthetic hair makes the best gray. Human gray can appear yellow and it is very over-processed. However synthetic gray can look unnaturally bright in UV black light.
  • We can texture-match your hair-sample
  • We match any type of hair regardless of ethnic origin.
  • Evenly distrubuted highlights will change your overall color blend and may cause a mismatch with your real hair
  • Spot highlights look like streaks or chunks except the color goes all the way down through the knot.
  • You can send pictures if you are stuck on highlight percentages.
  • Donor hair does not come from religious ceremonies and it is not un-kosher. It's harvested from hair brushing, no hair is cut off the donors, except in the case of Mongolian Remy hair, but that is sold by the donors, and is not donated in any religious way.