"My experience with checkmate has greatly exceeded my expectations and has changed my life". More


How do women use CheckMate?

The typical female user of the CheckMate product is a woman who has discovered visibly suspicious stains that she feels are associated with some type of suspicious activity and she is usually purchasing the product to prove that the stains are really semen. Each test kit can test 5 to 10 items for the presence of semen and you get a second test kit free with every order. Instant results - Instant information.

What does a dried semen stain look like?

In the vast majority of cases a quick visual examination of the article will tell you if there is any reason to perform the CheckMate test. A dried semen stain is a three dimensional type stain that can be felt or touched and it will give the material in question a stiff starchy feeling or appearance that professionals call a "board like" consistency.

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Have a CheckMate lab test performed by a Board Certified PhD, this service coming Soon!

The CheckMate company has been selling and performing semen detection tests longer than any other company or DNA lab anywhere in the world. Our testing procedures are also considered to be the most accurate and reliable semen detection tests available today and we have the experience and ability to provide you with the information you need to deal with an impossible situation. 

Our laboratory semen detection tests also offer several other distinct advantages for consumers

Unlike overpriced DNA broker websites that pass your samples off to a real lab for testing - with a CheckMate laboratory test for the detection of semen you will be dealing directly with the actual Board Certified PhD who will be performing your tests. This not only saves time, you are also eliminating any middleman too, saving you about 50% on any potential DNA testing afterwards. Plus with our service the entire process is further streamlined too because of the fact that if the item you send for testing does test positive for the presence of semen your items will already be at the DNA lab if you end up needing or wanting DNA testing performed.

Our laboratory semen detection tests are performed by a Board Certified PhD


  • 100% accurate semen detection test results
  • Test all stains on 1 garment for 1 test
  • Fully certified DNA lab / not a DNA broker
  • All lab tests performed by Board Certified PhD
  • Written report provided
  • Tested item and test results returned to you
  • More information about DNA testing

When purchasing the laboratory semen detection service online please be sure to include an e mail address that we can use to send you the required consent form that needs to be signed by you and included with the garment you are sending for testing. Nothing will come to your home unless requested by you and we will only contact you with the test results at the telephone number or e mail address specified by you. Call 1 800 498 5015 if you have any questions.



1. Air dry evidence before packing
2. Do not let two items of evidence come in contact with each other
3. Package evidence in paper bags or envelopes
4. Package different pieces of evidence separately


  • Please follow all Sample Submission Guidelines above when submitting evidence.
  • Place your order online or over the phone.
  • Initial payment must be received  before the tests are performed.
  • Please contact us at:(800) 498 -5015 if you have any questions about submitting samples for testing.
After placing your order you will receive an e mail with the consent form along with other information about the testing process.
Note 1: Please be sure to provide a phone number or e mail address when submitting your samples so that we may contact you with your test results.

Note 2: When placing your order online please choose "Priority Mail" as your shipping method and this postage will be used to return the tested item and your written report to you.


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Support hours M-F 9 to 5:00 EST