seednaで出生前診断を行いました（Instagram）
2026.04.10
Cheating Test
Resolve anxiety about affairs through a Privacy Mark-certified agency protecting personal information
What is a Cheating Test?
“Could my beloved partner be cheating...?”
Do you ever find yourself suspecting your partner when you find suspicious items like stains on underwear, tissues that seem to have wiped off semen-like substances, long hair on the bed, or cigarette butts with lipstick on them?
In such cases, you can discover the truth through a “Cheating Test”!
* When using samples taken directly from subjects, such as blood or buccal cells, consent from all subjects is required. Consent is not required when using items that cannot identify the subject as samples.
DNA on objects is extracted/analyzed using methods used in criminal investigations by forensic science laboratories, to check if the found evidence belongs to another man/woman. You can check if the evidence is your own or someone else's, or by comparing it with a suspicious person's item, you can also confirm that the found evidence belongs to that person.
Contents of Cheating Test
Please send the found cheating evidence and samples of related persons to be tested to us.
If you cannot send the cheating evidence as is, please rub the stains attached to the evidence onto the special cotton swabs included in the test kit that will arrive from us, put them in the kit, and send it back.
Round-trip shipping for the cheating test kit is free.
We extract DNA from the client's buccal cells and items that are evidence of cheating to confirm whose items the evidence belongs to.
* Testing Example 1: You want to confirm if the found “item” is your own. “Client's buccal cells” + “Long hair attached to the bed”
* Testing Example 2: You want to confirm if the found “item” belongs to a suspicious person. “Cotton swab rubbed with a suspicious stain on the sofa” + “Cigarette butt of a person suspected of a relationship”
Lowest price in Japan! 
Cheating Test66,000 JPY (Tax Incl.)Apply / Purchase Kit
Only one in Japan!
Special Cheating Test82,600 JPY (Tax Incl.)Apply / Purchase Kit
Reasons why seeDNA
is chosen
Reliable Testing Agency
International certified agency with Privacy Mark that protects client privacy
With patented technology for analyzing degraded/damaged DNA, testing that is difficult for other companies is also OK
By introducing the latest DNA analysis technology,
'Zero misjudgment trouble'
The cheating test at seeDNA Genetic Medical Laboratory is amazing!
Because it is an appraisal for the police to identify the culprit, you can get the most accurate test results.
You can smoothly solve big worries related to your life.
The special cheating appraisal is even more amazing!
If the evidence you finally secured in a situation where your partner's infidelity is suspected has been damaged or degraded due to sunlight, chemicals, or a humid storage state, results cannot be obtained with general DNA analysis technology such as that performed at a forensic science laboratory.
Even for "items" that are difficult for other companies to test, you can confirm the most accurate results with seeDNA Genetic Medical Laboratory's patented technology, "Trace DNA Analysis Technology". It is a next-generation DNA testing method that can handle not only degraded/damaged DNA but also trace DNA mixtures and subject mutations that cannot be detected by general DNA testing.
Please leave it to the "Special Cheating Test" that only seeDNA Genetic Medical Laboratory can perform in Japan.
Examples of testable samples- ①Samples exposed to sunlight for a long time
⇒ Testing is possible even if DNA damage is severe! - ②Old samples that have passed a long period
⇒ Testing is possible even if DNA is degraded! - ③The DNA of the partner (test subject) is hardly attached
⇒ Testing is possible even with trace amounts of DNA!
The only testing agency in Japan,
that can perform special cheating tests
With the patented technology "Trace DNA Analysis" uniquely developed by seeDNA Genetic Medical Laboratory, the accuracy of existing DNA testing has been greatly improved. Obtained international patents in 20 countries including the United States and Europe. (Patent No. 7121440)
We respond to various needs of customers who are troubled by unreliable test results.
Cheap and clear pricing
There are no confusing fee structures or additional test costs.
We respond to our customers' worries and various needs at the lowest cost.
Specialized staff respond quickly by shipping test kits and providing customer support even on weekends.
Without paying expensive detective fees, you can solve your infidelity worries cheaply and quickly.
Please feel free to contact us.
Actual Test Cases
Client: Residing in Okinawa Prefecture, Female in her 20s
[Situation]
There is a cigarette with lipstick in the car's ashtray. I want to check if a woman other than me was riding.
[Sample (Submitted item)]
①Cigarette
②Client's (female) buccal cells*Rub the inside of the mouth with a cotton swab to collect.
[Appraisal Result]
Extracted DNA from the cigarette and cotton swab (buccal cells). As a result of comparative analysis of each DNA profile, it was found to be the "DNA of another woman" different from the client.
◆Test name: Cheating test
◆Test fee: 66,000 JPY
◆Test period: 12 business days
◆Test fee: 66,000 JPY
◆Test period: 12 business days
Client: Residing in Hokkaido, Male in his 30s
[Situation]
A semen-like liquid is attached to my wife's underwear. I want to confirm if the stain on the underwear is semen, and if it belongs to a man other than me.
[Sample (Submitted item)]
①Underwear with a semen-like liquid attached
②Client's (male) buccal cells
[Appraisal Result]
As a result of examining the underwear with a "semen reaction test", it was found that the liquid was "male semen". When the DNA profile was also confirmed, male DNA was detected, and as a result of comparative analysis of the DNA profiles of the underwear (male DNA) and the client's buccal cells, it was found to be the "semen of another man" different from the client.
◆Test name: Cheating test + Semen test
◆Test fee: 81,000 JPY (Cheating test 66,000 JPY + Semen test 15,000 JPY)
◆Test period: 12 business days
◆Test fee: 81,000 JPY (Cheating test 66,000 JPY + Semen test 15,000 JPY)
◆Test period: 12 business days
Client: Residing in Osaka Prefecture, Female in her 50s
[Situation]
Long hair, which seems to belong to a woman, was dropped on the bed at home. I want to check if it's the hair of a woman who is a cheating partner.
[Sample (Submitted item)]
①Hair dropped on the bed
②Disposable chopsticks used by the cheating partner
[Appraisal Result]
DNA is extracted from the hair and the disposable chopsticks used by the cheating partner. As a result of comparative analysis of each DNA profile, it was found that the hair dropped on the bed belonged to "not the client, but the female cheating partner".
◆Test name: Cheating test + Additional sample (1 sample)
◆Test fee: 111,000 JPY (Cheating test 66,000 JPY + Chopsticks sample 33,000 JPY + Speed appraisal 20,000 JPY)
◆Test period: 6 business days
◆Test fee: 111,000 JPY (Cheating test 66,000 JPY + Chopsticks sample 33,000 JPY + Speed appraisal 20,000 JPY)
◆Test period: 6 business days
Application / Kit
Purchase Flow
Flow of the Cheating Test
①Discovering signs of cheating
If you find suspicious items such as stains on underwear or hair around your partner, please save them promptly.
The basic rule for all samples except liquids like blood is to store them in a dry state in a cool place away from sunlight.
If you cannot request a test immediately, freezing allows long-term storage for more than a month.
②Apply from the website or by phone.
Please fill in the necessary information from the application form on the site and apply.
We are also open on weekends, so we can accept tests and ship sample collection kits even on weekends.
Please feel free to contact us.
③Receiving the sample collection kit
For applications confirmed by 18:00, we will ship the sample collection kit from us on the same day.
There are no documents or items required for the test that the customer needs to prepare.
④Collecting the sample
We ask you to collect the mucous membrane in the mouth called "buccal cells" with a testing cotton swab.
Please apply the medical cotton swab included in the sample collection kit to the inside of the cheek and rub gently for 10 seconds.
⑤Mailing with the return envelope.
Please return the collected sample.
The sample collection kit includes a return envelope, so stamps are not required.
*If the sample does not fit in our return envelope, the shipping fee will be borne by the customer.
⑥Result Report
You can check it on the WEB My Page.
*We also accept the issuance of written reports for 5 years from the test acceptance date.
Cheating Test Cost & Period
Cheating Test
| Cost | 66,000 JPY(Tax and return shipping included) |
|---|---|
| Period | Normal: 12 days |
| Options | *Due to a large number of requests, Additional sample (1 sample): 16,500 JPY *If the additional sample is not buccal cells, 33,000 JPY will be added per sample. Add Semen Test: 15,000 JPY |
Special Cheating Test
| Cost | 82,600 JPY(Tax and return shipping included) |
|---|---|
| Period | Normal: 16 days (Speed test 8 days) |
| Options | Add Speed Test: 20,000 JPY Additional sample (1 sample): 24,800 JPY *If the additional sample is not buccal cells, 39,800 JPY will be added per sample. Add Semen Test: 15,000 JPY |
■There is absolutely nothing you need to prepare yourself.
The DNA test kit you receive from us contains everything needed for the test.
The DNA test kit you receive from us contains everything needed for the test.
Basic Set Contents
*It is also possible to add samples that require analysis
What are buccal cells?
We check if the "evidence" belongs not to yourself but to another man/woman. Or, by testing the sample of the cheating partner assumed to be the owner of the "evidence", we can prove whether the "evidence" belongs to the cheating partner.
What is cheating evidence?
It is an item attached with tissue or cells obtained from a human body.
The amount of DNA required for DNA testing is about 0.5ng, so the test can be performed as long as even a very small amount of DNA remains.
In addition to tissues obtained directly from the body such as the cheating partner's hair or saliva, DNA testing can be performed using various items attached with human cells, such as toothbrushes, paper cups, and disposable chopsticks used by people.
Representative non-swab samples with many achievements
1. Semen
Can be tested using tissues, condoms, underwear, etc., stained with semen or body fluids.
[Expert explains] Is the stain on clothes or tissues male semen? How to check
2. Toothbrush
It is the most common sample, analyzed about 300 times a year, and the success rate of testing is over 95%. However, since the DNA of another person is detected from an item used by someone other than the test subject, and accurate tests cannot be obtained, caution is required when using items other than buccal cells.
3. Cigarette
The success rate of testing changes depending on how it is smoked or stored. Also, as with almost all samples except blood, drying is important. If you cannot test immediately, you can store it for a long time by freezing it in a completely dry state.
4. Hair (Body Hair)
The key is that the hair root must be attached.
If the hair root is not attached, the testing accuracy may be limited, so please consult us.
5. Nails
Testing is performed with nails cut by nail clippers. Care should be taken with storage periods and methods.
Success rate using non-swab samples
Thanks to experts with an average research history of over 10 years, testing can be almost certainly performed as long as even trace DNA of about 1/100,000,000g remains. The main reasons why the success rate is less than 100% are the presence of multiple people's DNA in the "evidence" or damage/degradation due to the storage condition of the DNA.
In this case, please refer to the "Free re-testing/Refund regulations" of the seeDNA Genetic Medical Laboratory.
Customer Voices
Satisfied Voices
2029reviews
■ Satisfied (2029 / 2069 reviews)
■ Dissatisfied (40 / 2069 reviews)
We reply to all {totalCount} 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 {satisfiedCount} '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
Frequently Asked Questions
Q.浮気検査とは何ですか？ (EN)
A.
浮気検査とは、パートナーの不倫が疑われる証拠物（下着のシミ・髪の毛・タバコの吸い殻など）からDNAを抽出し、依頼人または別の人物のものかを科学的に判定する検査です。 seeDNAでは科捜研の犯罪捜査と同等のDNA解析技術を使用し、証拠物と依頼人の口腔上皮のDNAプロファイルを比較解析します。費用は66,000円（税込・往復送料込）、通常12営業日で結果が出ます。 (EN)
Q.浮気検査と特殊浮気検査の違いは何ですか？ (EN)
A.
通常の浮気検査（66,000円）は一般的な状態の証拠物に対応します。特殊浮気検査（82,600円）は、日光による損傷・長期間経過・微量DNAしか残っていない検体など、通常の解析技術では結果が得られない証拠物に対応する検査です。 seeDNA独自の微量DNA解析特許技術（特許第7121440号・20か国で国際特許取得）を用いるため、他社で「鑑定不能」と判定された検体でも検査が可能です(1)。 (EN)
Q.浮気検査で使用できる証拠物（検体）は何ですか？ (EN)
A.
人の体から得られる組織・細胞が付着しているものが対象です。具体的には以下の検体が利用可能です。
- 精液：ティッシュペーパー・コンドーム・下着に付着したもの
- 歯ブラシ：年間300件の分析実績、成功率95%以上
- タバコ：吸い殻に付着した唾液から抽出
- 髪の毛（体毛）：毛根付きが条件（毛根なしの場合は要相談）
- 爪：爪切りで切った爪で鑑定可能
- その他：紙コップ・割りばしなど人の細胞が付着したもの全般 (EN)
Q.浮気検査の申し込みから結果報告までの流れは？ (EN)
A.
全6ステップで完了します。①証拠物を発見したら乾燥状態で保管（冷凍保管で1か月以上保存可能）→②ホームページまたは電話で申し込み（土日も受付可能）→③18時までの申し込み確定分は当日中に検体採取キットを発送→④口腔上皮を綿棒で採取（頬の内側を10秒間軽く擦る）→⑤返信用封筒でポスト投函（切手不要・往復送料無料）→⑥WEBマイページで結果確認。通常の浮気検査は12営業日、特殊浮気検査は16営業日（スピード検査は8営業日）で結果が出ます。 (EN)
Q.浮気検査の費用と保証制度はどのようになっていますか？ (EN)
A.
費用体系は以下の通りです。
- 浮気検査：66,000円（税込・往復送料込）／通常12営業日
- 特殊浮気検査：82,600円（税込・往復送料込）／通常16営業日
- オプション：精液検査追加15,000円、追加検体（口腔上皮）16,500円～24,800円、口腔上皮以外の追加検体33,000円～39,800円
追加費用や分かりにくい料金体制はありません。検体にDNAが不足していた場合は無料再検査または返金規定が適用されます(3)。プライバシーマーク取得機関のため、社名を伏せた発送や郵便局留めにも対応し、周囲に知られず検査できます(2)。 (EN)