This one is for the guys, well mostly!

Wow! Is there no end to what’s available these days (and for under $50 at that!)
Check Mate Semen Detection Kit

Check Mate System

The KT100 CheckMate Semen / Sperm Detection Test Kit is simply the easiest and effective way to put an end to the nightmare of suspicion and doubt caused by the infidelity of a cheating spouse. If you need to know what’s really going on in your relationships and  want to know now,try the CheckMate semen detection test kit. Now you can quickly, easily, and accurately detect and identify suspected semen and or sperm stains in undergarments in 5 minutes or less.

The Original CheckMate Semen Detection Test Kit will quickly and easily monitor your spouse’s or partner’s sexual activity by detecting invisible traces of dried semen that is left in their undergarments after sex…

If any traces of semen are present on the area you decide to test, even in the smallest trace amounts, the CheckMate Semen Detection Test Kit will detect it. Invisible traces of dried semen can easily be detected for up to 2 years.


  • Detects invisible semen stains
  • Quick, easy and affordable
  • Laboratory proven results in a home test
  • Accurate results in 5 minutes or less
  • Discreet and confidential
  • Easy to follow instructions
  • Test 10 items with each kit

How does it work?
After sexual intercourse the flowback of the male partners semen from the woman’s body results in dried semen stains in the undergarment worn by the woman after the episode. In most cases this flowback will continue in small amounts for as long 72 hours after sex, even after showering. However, the initial stain left in the underwear worn or put on immediately after unprotected sexual intercourse will be very obvious to the naked eye.

How fast do I get the results?
The 5 Minute Infidelity Test Kit provides instant results in the comfort and privacy of your own home. The presence of semen will be indicated by the appearance of a purple color on the Lift Trace test paper within 15 seconds.

How accurate is CheckMate?
CheckMate is considered to be the absolute gold standard and can easily be said to100% accurate. If you want to see just how well this amazing product works all you have to do is test an item that you know for sure is stained with semen. After getting a negative result from suspected underwear, many men simply have sex with the woman being tested and then happily get a positive result from her underwear the next morning.

Does machine washing remove any semen stains?
Yes. Machine washing removes any semen stains that may have been present from previous sexual activity.

How old can the stain be?
The age of the suspected dried semen stain is not even a factor to consider when performing this test. All CheckMate test kits are tested and guaranteed to accurately detect dried semen stains up to two years old. However, in most cases you will be testing articles where you think the stain may have been recently deposited, meaning any garment obtained from a relationship setting is perfectly testable. Remember, we’re testing dried stains. Once the stain is dried on the material that’s exactly where it’s going to stay. Simply store the suspected article in a paper bag at normal room temperature until your test kits arrive.

Will this test stain the suspected garment?
The CheckMate semen detection test kit is designed specifically for ease of use by the everyday consumer and leaves no trace of the test procedure on the suspected article. PLUS… The CheckMate semen detection products also work on any type or color of material. Test undergarments, furniture, linens, auto upholstery etc. without fear of damage or stain.

Why are there 5 tests?
CheckMate is made to be the most accurate, easy to use test kit ever created. The reason the Infidelity Test Kit™ is designed to perform 5 or more tests is so that users can instantly verify their own results by testing other substances such as stains that are “known” to be dried semen along with items that are known to not be semen, such as urine, saliva, or normal vaginal secretions.

Why do they give a second test kit free?
CheckMate was modeled after the E.P.T. home pregnancy test. Like most home pregnancy kits, CheckMate also comes with two kits because of the serious nature of the tests that are being performed.

Think about it this way: If you did a test and got a negative result, the first thing you might think is – “How do I know it even worked?” That’s when you can get the ultimate peace of mind with this “amazing” product by testing a control sample that you know in fact is semen. Be smart, be aware, and be absolutely sure of your results with the CheckMate 5 Minute Infidelity Test Kit.

Can I get a false positive test result with CheckMate?
Of course not. CheckMate is not something that was just irresponsibly thrown onto the market. The 5 Minute Infidelity Test Kit is a purpose built product incorporating a patented scientific process, procedure, and formula that makes it the only product of its kind in the world today. Not only does CheckMate work exactly like we say it does. When used according to the instructions, men can also instantly prove infidelity by their female partner.

What if the guy she is seeing has had a vasectomy?
Yes, CheckMate detects semen from men who have had this procedure performed. Semen and sperm are two different things. A vasectomy does stop the delivery of sperm but ejaculation and semen production remains normal.

What is the shelf life?
The CheckMate test kit has an advertised unopened shelf life of one year. All components and packaging are shrink wrapped and safety sealed insuring product integrity and long life. In fact, the makers of CheckMate have successfully tested semen stains that were over 3 years old with CheckMate test kits that were over 2 years old.

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