Infidelity DNA Testing

From £299

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Suspect cheating or two-timing? Infidelity DNA testing can be used to indicate whether your partner has cheated or been unfaithful by testing a range of different samples. Normally, customers find an item, such as stained clothing, bedding or a condom which they suspect might be evidence of betrayal. The item can be analysed in a laboratory and once the DNA profile extraction has been successfully completed, the customer can make certain conclusions based on the results of a scientific analysis.

Science behind the test

We offer two types of infidelity testing service and two different types of analyses. Select from the below options basing yourself upon what exactly you need to establish.

Multiple gender profiling: Does the sample contain male or female DNA? Is there a mixed profile, showing the DNA of more than one person?

DNA profile comparison: Do you want to compare the DNA profile we found to another DNA sample to confirm if these come from the same person or from different people? Send us a mouth swab sample so that we can compare the two and confirm or exclude a match. (Please note that there is an additional cost of £70 for each extra sample)


We are a DNA testing company. Whilst results of an infidelity test can establish the presence of foreign genetic material or even confirm a match between two DNA samples, thus proving they belong to the same person, we cannot comment beyond the results of the laboratory analysis in strictly scientific terms. Our results will not tell you whether or not your husband wife, partner or fiancée has been unfaithful but will simply highlight the findings of the laboratory analysis.

Infidelity DNA Testing and The Human Tissue Act

Note: Due to the Human Tissue Act, Who’zTheDaddy? are unable to test samples belonging to any participants without their informed consent. Any test participant submitting a DNA sample must sign our consent form authorising us to test their sample. Children under the legal age of consent can have their legal guardian or parent/s sign on their behalf.

The Human Tissue Act also requires that the person from which the DNA sample has been collected be made fully aware of what their DNA sample will be used for. The absence of any form of refusal, comment or assent does not signify consent. Failure to comply with the Human Tissue Act is a criminal offence.

Sample Collection

We can test countless DNA samples and potentially each of these could yield a DNA profile. It is however important to note that every sample is different and our chances of successfully completing your test will vary depending on the sample you provide. Factors such as the age of the sample, the type of sample, how it was collected as well as the conditions to which it was exposed (such as chemical or environmental action), are all important factors to consider. Call our customer support team for more information about the DNA sample you want to test.

Semen Detection Test

A semen detection test is quick and simple test that will enable you to confirm the presence of semen. If you do not require a full DNA test but just want to know if a strain contains semen or not, check out our semen detection test.


What is Infidelity testing?

It is used to indicate whether your partner has cheated or been unfaithful by testing a range of different samples

What is the cost of the test?

The cost of the test is £299

How long will it take for the results to be finished?

About 10 to 15 working days from receipt of samples at the laboratory.

Note: Not all samples will be acceptedWe strongly suggest you contact us before sending any samples other than mouth swabs. Consult our alternative samples page to learn more about the samples most often sent for testing as well as information related to success rate, packaging and shipment of such samples. 

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