Hair Archives | Sensitivity Check

Where is my Submission code found?

Your submission code can be found in your order confirmation email. The code will be your order number followed by -1 for a single test, -1 and -2 for a couples package, and -3 and -4 for a family. If this hasn’t answered your question, please reach out...

How much should the hair sample postage cost?

When you send your samples to us, please remember to attach the correct postage amount to your envelope or outer wrap. If you do not attach the correct postage, the samples may not reach our testing lab. Therefore, you may need to resend your samples to us again using...

How do I take a hair sample?

The safest way to take a hair sample is to ask someone else to help you. First brush your hair upwards to reveal the root area at the back of the head, then holding a small amount of hair between the finger and thumb, cut the hair as close to the scalp as possible...