Easy and Pain-Free
SAMPLE COLLECTION
Quick and Reliable
RESULTS
99.99%
ACCURACY
Saliva
SAMPLE
Testimonials
I was very satisfied with the service I received from ADNÀ and I highly recommend this company.
“Very professional and really interesting. Thank you!!!”
“Very professional service, simple and clear!
Well detailed reports, even including suggestions to improve our fitness, health and skincare!
I'm very happy with my experience, highly recommend.”
"Great company from Quebec that I discovered while looking for a DNA nutrition test, very nice purchase and happy with my experience. Highly recommend!"
Additional information
Twin zygosity test: identical or fraternal twins?
Adnà’s twin zygosity test compares the DNA of twins to find out whether they are identical (monozygotic) or fraternal (dizygotic). The saliva sample is collected at home and is painless. The analysis is done in Canada by a laboratory accredited to ISO 17025 and recognized by the Standards Council of Canada. You receive a PDF report by email 5 to 7 business days after the lab receives your samples.
Identical or fraternal twins: what is the difference?
Identical twins come from a single fertilized egg that split into two embryos: they have the same DNA. Fraternal twins come from two eggs fertilized by two different sperm: genetically, they are siblings, just as if they had been born at different times.
Physical resemblance is not always enough to tell, and observations made at birth (placenta, amniotic sac) are not always conclusive. The test is only useful for same-sex twins: boy-girl twins are always fraternal.
How much does a twin zygosity test cost?
The price depends on how many people are tested and how the result will be used. All prices include the kit, the prepaid return label, the lab analysis and the report.
| Participants | Informational test (at home) | Legal test |
|---|---|---|
| 2 twins | $249 | $349 |
| 3 people (triplets) | $375 | $475 |
| 4 people (quadruplets) | $500 | $600 |
| Special sample (toothbrush, hair, blood…) | $650 | $650 |
There are no hidden fees: no subscription, no file-opening fee and no fee to receive your results.
Informational or legal test: which one do you need?
Both versions use the same analysis and offer the same accuracy. What changes is the proof of identity of the people tested.
- Informational test (from $249). You collect the samples yourself, at home. It is the right choice to answer a personal or family question privately.
- Legal test (from $349). Samples are collected by our team, at our offices or at your home anywhere in Greater Montreal. We verify the identity of each participant and document the chain of custody. The result can then be used in court proceedings. It is not accepted for immigration purposes.
If a judge will need to see the result, choose the legal version from the start. An informational test cannot become a legal one afterwards, because legal samples must be collected by an independent person.
How the test works, step by step
- Order online. Your kit ships the same day and arrives within 2 to 3 business days. It contains one sample envelope per person tested.
- Collect the samples. Each person rubs a swab inside their cheek for a few seconds. It is painless. Our video guide shows every step.
- Send the samples back with the prepaid return label included in your kit.
- Get your results by email, as a PDF, 5 to 7 business days after the lab receives your samples.
How to read the result
The lab compares 22 genetic markers (loci). If the profiles match on all markers, the twins are identical. If they differ, the twins are fraternal. The report gives the conclusion in one clear sentence, followed by the detail of the markers compared.
For triplets or quadruplets, the test compares each person with the others and shows which ones are identical to each other.
Twin zygosity or siblingship?
The twin zygosity test answers one question only: identical or fraternal twins. To find out whether two people born at different times share one or two parents, choose the siblingship test.
Consent and privacy
Every adult tested must give consent. For a minor child, a parent or legal guardian consents. Your results are sent only to the email address used for the order.
Same-Day Delivery
Shipped the same day you order.
French, English and Spanish customer support available.
SCC Accredited - Accrédité par le CCN
Our partner laboratory is accredited by the Standards Council of Canada
Proudly Canadian
DNA tests designed and processed in Canada. Order online from across Quebec and Canada.
ISO 17025 Certification
ISO17025 Accredited Partner Laboratory
Maximum Reliability
Enhanced accuracy with 22 genetic markers analyzed
Questions?
How does a home paternity test actually work?
The process is designed to be simple, fast and discreet. You receive a kit containing everything you need to collect a cheek swab sample in a few seconds, at home, with no appointment or medical procedure. You return the samples in the envelope provided. The analysis is performed in accredited laboratories and your results are sent to you as a PDF at the email address linked to your order, 5 to 7 business days after the lab receives them.
Our at-home paternity test starts at $199. The same process applies to all our DNA relationship tests: maternity, siblingship, grandparentage, aunt or uncle.
Here is a video showing how to collect the sample:
Should I choose a legal or an informational paternity test?
Both tests analyze DNA in the same way and offer the same scientific accuracy. The difference lies in the chain of custody and how the results are used:
• The informational test is done at home with a standard kit, without identity verification. It is for personal or family use.
• The legal test requires a supervised sample collection, formal identity verification and full chain-of-custody documentation. Its results can be recognized in court proceedings. It is not valid for immigration purposes.
Our paternity test is available as an informational version from $199 and a legal version from $299. You choose the version when you order.
Does a cheek swab or saliva sample hurt?
No. The sample collection is painless. It is a simple cheek swab: you gently rub a swab inside the cheek for a few seconds. No blood draw, no needle and no medical procedure. The method is safe, gentle and suitable for all ages, including children.
It’s the same simple step for all our DNA relationship tests, whether you are testing a newborn or a grandparent.
How much can I trust the results of my paternity test?
DNA relationship tests are highly accurate. When a biological relationship is confirmed, it is confirmed with a probability of at least 99.99%. When the tested man is not the biological father, the exclusion is 100% certain. Analyses follow strict international standards in ISO 17025 accredited laboratories.
Accuracy is the same for the at-home and legal versions of our paternity test.
Can I do my paternity test myself at home without losing reliability?
Yes, as long as you follow the kit instructions and avoid any male contamination during sample collection. Accuracy is then the same as in a lab: 99.99%. If in doubt, the Adnà team can guide you.
This is the informational version of our paternity test, from $199. If the result will be used in court, choose the legal version instead.
Which alternative samples (toothbrush, blood, etc.) do you accept for a relationship test?
Yes. For DNA relationship tests, our partner laboratory can analyze non-standard samples, such as a toothbrush or blood. The analysis costs $650 and takes longer, because the lab must first extract the DNA using a method suited to the material. Some samples (rootless hair, old tissue, very old cigarette butts) contain very little or degraded DNA.
You can order this option on the paternity test page (“Special sample collection” option). Here is the list of possible samples and their success rates:
Success rate: 90% or more
• Whole semen: frozen vial, fresh swab, or tissue.
• Whole saliva: tube, preferably with preservative.
• Whole blood: lavender-top vacutainer tube.
• Blood/saliva on filter paper: ideally less than 60 days old.
• Bone marrow: fresh or frozen, not on a slide or in paraffin.
• Mucus / sputum: tissue, paper towel, or napkin.
• Toothbrush: let air dry for 30 minutes before packaging.
Success rate: 60% to 90%
• Blood stain on fabric: bandages, gauze, tissues, clothing.
• Semen stain on fabric: gauze, tissue, or clothing (indicate the area).
• Saliva stain on fabric: same, indicate the area.
• Unknown stain on fabric: indicate the area.
• Clipped nails: 5 to 10 recommended.
• Diabetic test strips: several recommended.
• Ear swab: cotton swab / Q-tip.
• Umbilical cord: dried, with a sample from the mother.
• Cigarette butts: several recommended.
• Tampon / sanitary pad: sometimes not viable.
• Straw: let air dry.
• Dental floss: do not touch with fingers.
• Semen (≥200 µl): send frozen.
• Muscle / organic tissue: preferably not embalmed.
• Stillborn fetus: sample from the mother required.
Success rate: 60% or less
• Hair: visible roots, 7 to 10 strands.
• Disposable razor: entire blade with debris.
• Comb / brush: entire item with debris.
• Chewing tobacco: in a plastic bag, <3 days old.
• Jewelry: ring, watch, necklace, etc.
• Chewing gum: sugar-free preferred.
• Can / glass: submit whole rather than a makeshift swab.
• Clothing: hats, caps, bandanas.
• Envelopes / stamps: must have been licked.
• Condom: whole, both inside and outside tested.
• Paraffin-embedded tissue: block or slides.
Success rate: N/A
• Teeth: molars preferred.
• Bone: femur, humerus, or metacarpal (thumb).
• Feces: in a sealed plastic bag, on dry ice or refrigerant packs.
Twin zygosity or siblingship test: which one should I choose for my twins or my brothers and sisters?
A twin zygosity test (from $249) determines whether twins are monozygotic (identical) or dizygotic (fraternal) by comparing their DNA. A siblingship test (from $299) assesses the biological relationship between two people to find out whether they are brothers or sisters, by analyzing the proportion of shared DNA.
In short: twins who want to know if they are identical or fraternal choose twin zygosity; siblings who wonder whether they share the same father choose siblingship.
Is DNA paternity testing legal in Canada?
Yes. In Canada, DNA relationship tests are legal and widely used for personal, medical or legal purposes. The consent of all participants is required to take a test with Adnà. For the legal implications specific to your situation, consult a legal professional.
For personal peace of mind, the at-home version of our paternity test is enough. If the result must be presented in court, choose the legal version.
Is Adnà’s DNA test accepted for an immigration application?
No. Adnà does not offer DNA tests validated for immigration purposes. Immigration, Refugees and Citizenship Canada (IRCC) requires a strict protocol, with chain of custody and identification performed exclusively by laboratories it recognizes. We recommend Wyndham Forensic Group (WFG), a Canadian ISO 17025 accredited laboratory recognized by IRCC.
For personal use or court proceedings, our paternity test is available in at-home and legal versions.
Can a relationship test also tell me about my disease risks?
No. DNA relationship tests are extremely reliable (99.99%) for confirming or excluding a biological relationship, but they provide no information about health or ethnic origins. Legal relationship tests are recognized for court proceedings; they are not valid for immigration purposes.
To learn about your predispositions to certain diseases, choose our genetic predispositions test instead. To discover your origins, try our ancestry test.