The lab asks for a sample weight of approxmately 100 milligrams or one heaping teaspoon.
The length should be about 1-1.5 inches from the scalp. Any hair extending that length, should be cut off and discarded.
If you have very thin hair or not much hair to spare, you may request a small paper hair scale be sent to you at no cost. This will ensure you get enough hair for the lab, without collecting too much. Email us at email@example.com.
An insufficient sample will lead to the lab requesting more hair and delay the process.