DNA鑑定|一生の悩みを2日で解決|国内自社ラボDNA鑑定
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ImageWhat is Paternity DNA Testing?

We clarify your concerns regarding 'Is this person truly the biological father (or mother)?' in as little as 2 days, with high-precision paternity DNA testing (paternity/maternity probability over 99.99%) that significantly exceeds international standards.
Solve your paternity relationship concerns, which are hard to discuss with anyone, from just 24,800 JPY (round-trip shipping and tax included).Leave it to seeDNA, an internationally certified DNA testing laboratory.We can.

Solve paternity relationship concerns you can't tell anyone, from 24,800 JPY (Round-trip shipping & tax included).
Leave it to seeDNA, an internationally certified DNA testing laboratory.

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seeDNA遺伝医療研究所ロゴアイコンNo Mistakes Thanks to Double Analysis

Our system, where two independent examiners perform dual analysis, is unique to seeDNA.
Testing with only a single analysis carries a higher risk of misjudgment due to human error and requires caution.

seeDNA遺伝医療研究所ロゴアイコンPeace of Mind with Full Refund Guarantee

Since 2016, our in-house lab in Tokyo has maintained a record of "0 incidents" of misjudgments or troubles in DNA testing.While there have been cases where we overturned results from other companies, our own results have never been incorrect.
In the unlikely event of an error in the test result, we will provide a full refund.

seeDNA遺伝医療研究所ロゴアイコン10x the International Standard Accuracy

Minimum guaranteed probability of paternity is 99.99% or higher. *1※1
While many companies emphasize "maximum accuracy," seeDNA is the only one that guarantees even the minimum accuracy.

*1: Probability of Paternity (Maternity): An index used to confirm biological relationships.

seeDNA遺伝医療研究所ロゴアイコンFree Retesting if Samples are Damaged

Even if samples are damaged due to shipping accidents, we will conduct a retest free of charge.We also cover the round-trip shipping costs, so no additional fees will be incurred.. We also cover the round-trip shipping costs, so no additional fees will be incurred.

seeDNA遺伝医療研究所ロゴアイコンTest Discreetly Without Worrying About Others

You can receive the kit discreetly, such as by having it shipped under a personal name rather than a company name, or by choosing "post office delivery" to pick it up at a local post office.できるため、Test Discreetly Without Worrying About Othersを受けること.
Information regarding the test will not be disclosed to anyone other than the requester. We are a specialized DNA testing institution with a PrivacyMark certification for strict personal information protection.Tests can be performed with the same accuracy as the dedicated swabs, using various samples like toothbrushes, cigarette butts, chopsticks, or diapers.
検査に関する一切の情報をご依頼人以外に伝えることはありません。Test Discreetly Without Worrying About Othersができるプライバシー保護のPマーク認定の遺伝子検査の専門機関です。

Can I discreetly do a paternity DNA test without my partner's permission?
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seeDNA遺伝医療研究所ロゴアイコンHighest Level of Test Success Rate

The standard sample is buccal epithelium (rubbing the inside of the cheek with a swab). If collection is difficult, we can perform tests using samples other than swabs, such as "toothbrushes," "hair," and "cigarette butts."
The accuracy of the test does not decrease depending on the sample type. For details on samples other than swabs, please see.This is the success rate by sample type that can be used in paternity DNA testing. The amount of DNA required for analysis is 1 billionth of a gram. As long as even a trace of DNA remains on the sample, testing is possible.The main reasons for not reaching a 100% success rate are the contamination of DNA from multiple people or cases where the DNA has been completely degraded. In such cases, you can choose between
.herefor details.

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Success rate for each sample type usable in paternity DNA testing.
The amount of DNA required for one analysis is1 billionth of a gramで、検体中にDNAが微量でも残っていれば問題なく検査.

The most significant reasons for not reaching a 100% success rate are cases where DNA from multiple individuals is mixed in the sample, or the DNA has completely degraded.
Regarding the [Free Retest / Full Refund Guarantee], pleasehereselect your choice.

seeDNA遺伝医療研究所ロゴアイコンVideo Guide on How to Collect Samples

*Please note: The video "1. How to collect buccal epithelium" states "4 dedicated swabs per subject," but the correct amount is "2 dedicated swabs per subject."

seeDNA遺伝医療研究所ロゴアイコンTesting OK Even with Damaged/Degraded Samples

Even under conditions where accuracy is hard to achieve with other companies, such as suspected mutations or damaged samples, we provide a more certain result with a minimum guaranteed paternity probability of 99.9999999%.It is a genetic test using seeDNA's patented technology, capable of analyzing trace and damaged DNA that is difficult to process with standard methods used in forensic labs.99.9999999%Leave special sample DNA testing to us, such as umbilical cords kept at room temperature since the Meiji era (about 130 years ago).*1: Even high-precision paternity DNA testing can be conducted with sufficient accuracy, more than 10 times the international standard. If a clear result is obtained in high-precision testing, it will not be overturned by special paternity DNA testing.using this method.
Leave DNA testing with special samples, such as an umbilical cord kept at room temperature for 130 years since the Meiji era, to seeDNA.

※1:高精度親子DNA鑑定でも国際基準10倍以上の十分な精度の検査.
If a clear result is shown in a paternity DNA test, it will not be overturned by a special paternity DNA test.

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What is Probability of Paternity (Maternity)?

Meaning of Probability of Paternity (Maternity)
It is not the "probability of being a parent and child," but a genetic index indicating the reliability of the DNA test result.
A probability of 99.9999999% means it reaches a level where a biological relationship can be determined with a certainty infinitely close to 100%.
Theoretically, a perfect 100% cannot be calculated, but there is no way to overturn a conclusion reached with a 99.9% probability.
Furthermore, the international standard for confirming a biological relationship is set at 99.9%, and if no biological relationship is recognized, it will be 0%.

ImageTypes of Tests

Other DNA testing institutions do not disclose their misjudgment trouble rates or test success rates.
At seeDNA, we clearly display the information customers care about with accurate figures on our website.

High Precision Paternity DNA Test
Misjudgments0Cases
Min. Guaranteed Paternity Prob.99.99%
Number of Tests2Analysis
Double Check※1
Damaged Samples
Degraded DNA
Mutation Testing
Special Paternity DNA Test
Misjudgments0Cases
Min. Guaranteed Paternity Prob.99.9999999%
Number of Tests2Analysis
Double Check※1
Damaged Samples
Degraded DNA
Mutation Testing

*1: Double checks with 2 separate analyses are performed. No additional fees/resubmissions are required.

Tests that cannot be performed by other companies,
or tests using damaged samples

ImageOver 98% Customer Satisfaction!

Satisfied Voices
2029reviews

■ Satisfied (2029 / 2069 reviews)

■ Dissatisfied (40 / 2069 reviews)

We reply to all 2069 customer reviews received directly or via SNS/Google and publish them as capture images on our homepage.

Since we started aggregating reviews in 2015, we have received 2029 'Satisfied' ratings.

We publish all surveys and opinions received from our customers, including both satisfied and dissatisfied voices.

If any of the following ① to ③ apply, it is counted as a 'Dissatisfied' opinion.

  • 1 to 3 stars on Google reviews
  • Selecting 'Dissatisfied' in Q1 of the survey
  • More than 1/3 of the text in SNS or email is negative

ImageFast! Results reported in as little as 2 days.

Fast because of the highest level fully automated system in our Tokyo lab.
Prevents human errors.

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ImageWhat is Private Testing?

There are two types of high-precision DNA testing: "Private Testing" and "Legal Testing".

"Private Testing" is a test conductedfor the purpose of personal confirmation. We will send you a testing kit,and you will collect the samples yourself.

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The requester fills out the application form, and the subject signs the consent form. Submission of ID documents is not required.

*If the subject is a minor, a parent or legal guardian must sign on their behalf.

Results will be provided in a report uploaded to your "My Page".
Mailing of the physical result report is also available upon request (+5,500 JPY, tax included).

For tests to be submitted to courts or foreign government agencies, please check Legal Testing.

ImageHow to Perform a Paternity DNA Test

Testing is easy!
You can easily take the test at home.

1.Order

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・No post-payment fees ・No installment fees

2.Kit Arrives

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・Free round-trip shipping ・Shipped same day via express

3.Lightly rub the inside of the cheek with a swab

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4.Drop into postbox

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5.Test Begins

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・Double check with 2 analyses ・"0" misjudgments

6.Check Results

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・Check results in as little as 2 days ・Easy-to-understand report

・Everything needed for the test is included in the test kit.

・For privacy protection, a consent form is required along with the application, but since we do not conduct any verification, IDs or the subject's contact info are not needed.

ImageGenetic Testing Kit

We will send the sample collection kit and all necessary documents in one package.
There are no documents or items you need to prepare yourself.

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Contents of the Genetic Testing Kit

  • ・User Guide
  • ・Return Envelope
  • ・Sample Collection Kit (2 swab sets)

ImageEasy-to-Understand Result Report

The reportincludes the subject's DNA profile and photos of the tested samples, andseeDNA's reportshave received excellent reviews for being easy to understand and trustworthy.
If the subject's DNA profile is not shown, you cannot trust if the test was truly conducted properly.
Also, without a photo of the actual sample used, you might feel anxious about whether the result is truly from the sample you sent.
With seeDNA,you can confirm it is the correct result using the sample you sent through photos and specific numerical values.

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View all pages

ImageHow to Read the Report

We explain how to read the result report in a video.

ImageCost / Duration

Tax and round-trip express shipping included

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・The testing period counts only weekdays, excluding weekends and holidays.

All prices include tax and the round-trip shipping cost for the sample collection kit.

ImageFrequently Asked Questions

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Contact / Support

Our expert staff will politely answer your questions

0120-919-097

Business Hours: 9:00 - 18:00 (Open Weekends & Holidays)