Infidelity Testing in San Antonio

Confidential DNA Testing for NW San Antonio & Bexar County

Suspected infidelity creates a kind of uncertainty that’s hard to sit with. Rather than prolonged doubt, a DNA-based infidelity test offers a scientifically grounded, conclusive answer. At Fastest Labs NW San Antonio, we provide that answer through certified sample collection, AABB-accredited laboratory analysis, and results typically back within 2 to 3 business days.

We serve individuals throughout the Northwest San Antonio area and Bexar County with strict discretion. Your inquiry, your visit, and your results remain confidential from start to finish.

Schedule an appointment online or call (210) 361-6497 for confidential DNA testing in San Antonio. 

Certified Collection, AABB-Accredited Results

For a test this personal, the credibility of the laboratory and the professionalism of the collection staff matter. Every infidelity DNA test we process goes through a partner laboratory holding AABB accreditation, a widely recognized standard in DNA testing. AABB-accredited results meet strict scientific protocols accepted by courts, government agencies, and immigration authorities worldwide.

Our certified sample collectors are trained specifically for sensitive personal situations. They understand the emotional weight of what you’re facing and handle every step, from collection through result delivery, with the professionalism and discretion the situation deserves.

What sets our process apart:

• Certified Collection: Certified methods and certified collectors for every DNA test we perform.
• AABB-Accredited Labs: Partner laboratories that meet high scientific standards in the industry.
• Complete Confidentiality: Results and client information are shared with authorized individuals. Nothing leaves our system without your consent.
• Results in 2 to 3 Business Days: A scientifically valid answer without a long wait.
• Walk-Ins Welcome: Scheduling an appointment is recommended to reduce wait time and allow us to prepare, but we accommodate walk-ins when possible.

How Infidelity DNA Testing Works

Infidelity testing compares an unknown biological sample against your own DNA profile. You provide a cheek swab as an exclusion reference sample, which allows the lab to identify any DNA present on the submitted item that doesn’t belong to you. That exclusion step is what makes the result scientifically meaningful.

We accept a range of sample types, though viability depends on the condition of the item. Proper handling before you bring it in matters.

Accepted sample types include:

• Bodily Fluid Samples: Found on sheets, undergarments, or clothing fabrics.
• Secondary DNA Sources: Hair with the root intact, used dental floss, cigarette butts, or nail trimmings.

The 4-Step Submission Process

From the moment you collect the sample at home to the moment results arrive, here’s what to expect.

1. Gather the Sample: Handle the item with gloves or place it in a clean zip-lock bag to prevent cross-contamination. Avoiding direct bare-hand contact helps preserve DNA integrity and improves the likelihood of a viable result.
2. Visit Our NW San Antonio Clinic: Bring the item to our Northwest San Antonio location. We can walk you through the intake process and answer any questions.
3. Provide Your Exclusion Swab: A quick, painless cheek swab takes just a few minutes. This reference sample is how the lab isolates and identifies any DNA on the item that isn’t yours.
4. Receive Your Results: Certified lab professionals process both samples. Results are delivered securely and directly to you, typically within 2 to 3 business days.

Please Note: While infidelity DNA testing provides personal peace of mind and clarity, these tests are for personal, informational purposes and are not court-admissible. A legally admissible DNA test requires a strict chain of custody and third-party collection process.