gtldna.co.uk

GTL DNA (gtldna.co.uk) states that its paternity tests are conclusive and accurate because testing is carried out in a highly accredited laboratory, and that results are normally issued in 3–5 working days. The site also advertises a 21-loci test and an express option that can return paternity or maternity results in 3 working days from the moment samples reach the laboratory, for a small additional fee. These are the provider's own claims; the sections below explain what they mean in practice and what to check before ordering.

What "21 loci" means for accuracy

A paternity test compares DNA markers (loci) between the alleged father, the mother and the child. The more loci tested, the stronger the statistical picture: a man who does not match the child will typically be excluded at several loci, while a matching man will share an allele with the child at every locus tested.

GTL DNA advertises a 21-loci test, which is above the 16-loci minimum commonly used in relationship testing. In practical terms:

• An exclusion result (the alleged father is not the biological father) is usually clear-cut, because multiple mismatches appear.
• An inclusion result is reported with a probability of paternity; with 21 loci this figure is typically very high, but the exact number depends on the case.
• The site's "Accuracy Guarantee" page is the place to read the precise wording of what GTL guarantees.

If you need the result for official purposes, accuracy of the test is only half the story — the chain of sample collection matters just as much (see the home vs. legal section below).

Why laboratory accreditation matters

GTL DNA highlights ISO 17025 accreditation and explains why accreditation is important on its own information page. ISO 17025 is the international standard for the competence of testing and calibration laboratories, so an accredited lab has been assessed on its methods, equipment and quality control.

For a home paternity test used privately, accreditation is a quality signal. For a legal test — for example, for child maintenance, immigration or court proceedings — the sample collection must also follow a documented chain of custody, which is why GTL DNA separates "Home vs. Legal DNA Testing" in its service list. Check the specific accreditation and chain-of-custody requirements of the body that will receive your result before you order.

How long results take

Two practical points follow from this:

1. The clock starts at the lab, not at your order. Posting samples adds delivery time that is not included in the 3–5 working days. If you are working to a deadline, factor in postage or ask about courier options.
2. "Working days" excludes weekends and public holidays. A sample arriving on a Friday will not usually produce a result by Monday under the standard service.

The £89 starting price is described as having no hidden fees, and GTL DNA publishes a Payment Options page for how to pay. Confirm the current price and what the kit includes on the order page before purchasing, since the site presents £89 as a starting figure.

Home test vs. legal test: which accuracy question are you asking?

The laboratory analysis can be identical, but the two products answer different needs:

• Home paternity test — for personal reassurance. You collect cheek-swab samples yourself and post them in. Results are for your information and are not usually accepted for official purposes.
• Legal paternity test — samples are collected by a verified third party with identity checks and chain of custody, so the result can be used officially. Expect a different price and process; GTL DNA lists it as a separate service.

If there is any chance the result will be needed for legal or immigration purposes, order the legal test from the start rather than repeating the process later.

What to verify before you order

• Read the Accuracy Guarantee and Laboratory Accreditations pages for the exact claims and certificate details.
• Check the Frequent Questions and Sample Collection Procedure pages so your swabs are taken correctly — a poor sample is the most common reason for delays or re-tests.
• Confirm the current price, what the £89 covers, and whether the express fee applies to your case.
• For legal use, confirm with the receiving authority what accreditation and chain-of-custody documentation they require.

In short: GTL DNA's advertised accuracy rests on a 21-loci test run in an ISO 17025-accredited laboratory, with standard results in 3–5 working days and an express option at 3 working days from lab receipt. Whether that is accurate enough for your purpose depends on choosing the right test type — home for information, legal for official use.

GTL DNA's home paternity test starts at £89 and, at that price, covers testing of the alleged father, mother and child. The site states there are no hidden fees, results are issued in 3–5 working days, and an express option can bring results to 3 working days from the moment samples reach the laboratory for a small additional fee. This guide is for anyone comparing a private (non-legal) home paternity test on price and inclusions; if you need a test for legal or immigration purposes, the home test is not the right product.

What the £89 starting price includes

According to the site's home paternity testing page, the £89 starting price covers:

• Three participants: the alleged father, the mother and the child.
• A home sample collection: you collect samples yourself and send them in — the site has a separate "Collect & Send Today" route and a sample collection procedure page.
• Laboratory analysis: the site says testing is carried out in a highly accredited laboratory, with 21 loci tested and ISO 17025 referenced on the page.
• Results in 3–5 working days.
• No hidden fees, per the site's own statement.

Two things to keep in mind when budgeting. First, £89 is described as a starting price, so treat it as the entry point for the standard three-person home test rather than a guaranteed total for every case. Second, the price is tied to the home (peace-of-mind) test — the site lists legal paternity testing and immigration DNA testing as separate services, so don't assume the £89 figure applies to those.

Optional extras and what can change the cost

Express turnaround

If you need results faster, GTL offers an express option for paternity and maternity tests that returns results in 3 working days from the moment samples reach the laboratory. The site describes this as available "for just a small additional fee" but does not publish the exact amount, so confirm it before ordering.

Note the wording: the 3-day clock starts when the lab receives your samples, not when you order or post them. Postage and transit time sit outside both the standard and express windows.

Cases that may not fit the standard package

The £89 package is built around father, mother and child. If your situation differs — for example, the mother is not available, or you need a different relationship test such as sibling, grandparent or aunt/uncle testing — the price and sample requirements will differ. GTL lists these as separate services, so ask for a quote rather than assuming the home paternity price carries over.

How to order and pay

The site provides a payment options page under its Resources section and an "Order Now" link in the main navigation. The general flow is:

1. Choose the test — home paternity testing for peace of mind.
2. Confirm the participants and any extras (such as express processing) so the final price is clear before you pay.
3. Order and pay through the options listed on the payment options page.
4. Collect the samples at home following the sample collection procedure, then send them to the laboratory.
5. Wait for results — 3–5 working days standard, or 3 working days from lab receipt if you paid for express.

The site also offers a callback request and a phone number (01273 748926) if you want to confirm the price for your specific case before ordering.

Deciding whether this fits your needs

If your goal is a private answer at the lowest published price and all three standard participants can provide samples, the £89 home test is the direct match. If any of those conditions fail, get a written quote first so the "no hidden fees" promise applies to your actual case.

GTL DNA (gtldna.co.uk) offers far more than paternity testing. Beyond its home and legal paternity tests, the UK-based provider lists relationship tests (siblings, twins, grandparents, aunts/uncles, MtDNA, Y chromosome, genetic reconstruction), prenatal tests (non-invasive prenatal paternity and baby gender), animal tests (dog, cat, horse and bird), plus health and wellbeing, clinical, ancestry, drug and DNA profile testing. The right test depends on which two people you want to compare and whether you need results for personal information or for legal purposes.

Relationship and kinship tests

These tests use DNA to establish whether two people are biologically related when a direct parent–child test isn't possible or isn't the question. The site lists:

• Sibling DNA test – examines whether two people share one or both biological parents.
• Twins DNA test – confirms whether twins are identical (monozygotic) or fraternal (dizygotic).
• Grandparent DNA test – assesses a biological link between a child and a grandparent, typically when the parent is unavailable.
• Aunt/uncle DNA test – looks at whether a person is a biological aunt or uncle of a child.
• MtDNA test – traces the maternal line, since mitochondrial DNA is passed from mother to child.
• Y chromosome test – traces the paternal line, since the Y chromosome passes from father to son.
• Genetic reconstruction test – pieces together relationships when key individuals are missing, using several relatives' samples.

How to choose: start from the closest available relative. A grandparent test is more conclusive than an aunt/uncle test because the genetic overlap is larger. Lineage tests (MtDNA, Y chromosome) answer "are we on the same maternal/paternal line?" rather than giving a percentage of relatedness.

Prenatal tests

• Non-invasive prenatal paternity test – assesses paternity before birth using a sample from the mother.
• Baby gender test – a prenatal test to determine the baby's sex.

Because these involve pregnancy, confirm with the provider (and your healthcare professional) that the test suits your circumstances and stage of pregnancy before ordering.

Animal tests

GTL DNA also serves pet and livestock owners:

These are useful for breeders verifying pedigree, for owners investigating a health or allergy concern, or for bird keepers who need to know a bird's sex.

Health, ancestry and other tests

• Health & wellbeing – diet and healthy weight, skin care, lactose intolerance, coeliac disease genetic test, genetic predisposition test.
• Ancestry – ancient DNA hub, GPS Origins ancestry test, paternal lineage, maternal lineage.
• Drug tests – hair drug test.
• Other – DNA profile testing, disaster victim identification, surrogacy DNA testing.

What stays the same across the range

The site states its testing uses a 21-loci test in an ISO 17025-accredited laboratory, with home paternity results in 3–5 working days and an express option in 3 working days once samples reach the lab. Home paternity testing starts at £89 with no hidden fees, and payment options are set out on a dedicated page.

Practical next step

Decide first what question you need answered and who can provide a sample — that narrows the list to one or two tests. Then check the specific test page or contact the lab (the site lists a phone number and a callback request) to confirm sample collection, turnaround and whether the result will be accepted for your intended use, such as legal or immigration purposes.

At GTL DNA (gtldna.co.uk), the core difference is legal standing: a home paternity test gives you a private, accurate answer for personal peace of mind, while a legal paternity test follows a chain-of-custody process so its results can be used for official purposes such as court, immigration, or formal records. Both are laboratory-based DNA tests, but they differ in how samples are collected, how identity is verified, and where the results can be used. Choose home testing if you only need to know the answer yourself; choose legal testing if a third party (court, immigration authority, or another official body) must accept the result.

Side-by-side comparison

What the home test includes

GTL DNA states that its home paternity test includes testing the alleged father, mother, and child, and starts at £89 with no hidden fees. Testing covers 21 loci, and the laboratory is described as highly accredited (ISO 17025). Standard results are issued in 3–5 working days. If your case is urgent, an express option for paternity and maternity tests can return results in 3 working days from the moment samples reach the laboratory, for a small additional fee.

This makes the home test a good fit when:

• You want a conclusive, accurate answer for yourself.
• You are comfortable collecting and sending samples yourself.
• You do not need the result to be accepted by a court or government body.

What the legal test is for

The legal paternity test exists for situations where the result must be defensible to a third party. Because identity verification and chain of custody are built into the process, the result can be presented in formal settings. GTL DNA's service list also includes immigration DNA testing, which is the typical route when a result is needed to support an immigration application.

Choose the legal route when:

• A court, immigration authority, or other official body requires the test.
• The result will be used in an application or formal record.
• You need assurance that the sample is tied to a verified identity.

How to decide

1. Ask who will see the result. If only you will, the home test is the simpler and cheaper route. If an official body must accept it, you need the legal process.
2. Check the requirement before ordering. Confirm with the receiving authority what type of test it accepts — this avoids paying for a home test that cannot be used, or a legal test you did not need.
3. Consider timing. Both routes use the same laboratory turnaround (3–5 working days standard, 3 working days express for paternity and maternity), so the decision should be driven by legal need, not speed.
4. Budget accordingly. The home paternity test starts at £89; the legal test involves additional process steps, so confirm the current price and what it covers through GTL DNA's payment options page or by contacting the company directly.

Common pitfalls

• Ordering a home test for an official purpose. A home result is for personal use; if an authority requires a legal test, a home result will not substitute for it.
• Assuming the two tests differ in accuracy. The difference is in legal admissibility and verification, not in the underlying DNA science.
• Leaving the requirement check until after ordering. Confirm the accepted test type with the requesting body first, then order.

For current pricing, sample collection details, and to confirm which test fits your situation, contact GTL DNA directly (the site lists a phone number, 01273 748926) or review its payment options and sample collection guidance before ordering.

GTL DNA, at gtldna.co.uk, is the website of Genetic Testing Laboratories, a UK-based DNA testing service provider. It offers home and legal paternity tests, prenatal paternity testing, relationship tests, animal DNA tests, and health, wellbeing and ancestry tests. Its home paternity test (alleged father, mother and child) starts at £89, with results issued in 3–5 working days, and testing is described as covering 21 loci in an ISO 17025-accredited laboratory.

Who runs the site and what does it claim?

The site presents Genetic Testing Laboratories as an experienced UK DNA testing provider. The main claims it makes about its service are:

• 21 loci tested — the number of genetic markers analysed in its tests.
• ISO 17025 accreditation — the laboratory standard it says underpins its results.
• 3–5 working days for standard results, with an express option for paternity and maternity tests that returns results in 3 working days from the moment samples reach the laboratory, for a small additional fee.
• No hidden fees on the home paternity test starting at £89.

These are the provider's own statements. If accreditation matters for your use case — for example, a legal test — check the specific accreditation and chain-of-custody arrangements with the company before ordering.

What tests does GTL DNA offer?

The service list is broad. It falls into several groups:

A few practical distinctions matter when choosing:

• Home vs legal testing. Home tests are for personal information. Legal tests follow a different sample-collection process so results can be used for official purposes. The site treats these as separate services, so pick the one that matches your intended use.
• Standard vs express. The faster 3-working-day turnaround applies to paternity and maternity tests and costs extra; the clock starts when samples arrive at the laboratory, not when you order.
• Prenatal testing. The non-invasive prenatal paternity test is listed separately from the baby gender test. Both are prenatal services but answer different questions.

How do you order and what happens next?

The site provides an Order Now entry point and a Request Callback option, plus a phone number (01273 748926) and an offices/contact section. A Payment Options page sits under Resources.

The general flow implied by the site is:

1. Choose the test that matches your question (home vs legal, paternity vs relationship, etc.).
2. Order online or request a callback to discuss your case.
3. Collect and send samples using the site's sample collection procedure guidance.
4. Receive results in the stated turnaround once samples reach the laboratory.

Before ordering, confirm two things with the company: whether your chosen test is the home or legal version, and whether the express option applies to it. The site's Frequent Questions, Sample Collection Procedure and Home vs. Legal DNA Testing pages are the places to check those details.

Is it worth considering?

GTL DNA is a reasonable starting point if you want a UK-based provider with a published price (£89 for a home paternity test), a stated accreditation (ISO 17025) and a short turnaround (3–5 working days). It is less suited to situations where you need certainty about legal admissibility without first confirming the legal-test process, or where you want a consultation before committing — in those cases, use the callback option or contact the office directly rather than ordering from the price headline alone.