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Drug, Alcohol, and DNA Testing in Rancho Cucamonga, CA
Your Trusted Partner for Accurate, Fast Results
When you need reliable drug testing or DNA testing services, Fastest Labs of Rancho Cucamonga delivers the accuracy you require with the speed and professionalism you deserve. Whether you're an employer establishing employee drug testing programs or an individual seeking paternity testing answers, our locally owned facility provides comprehensive lab collection services designed around your needs. We proudly service Rancho Cucamonga, Ontario, Fontana, and beyond.
We've built our reputation on being the cleanest, fastest, and friendliest testing lab in the industry. Our certified collectors understand that testing can feel stressful, which is why we've created a welcoming environment where most clients are seen within minutes of arrival—no hour-long waits like traditional medical facilities.
Our Testing Services
Solutions for Individuals and Employers
Your Simple Testing Solution
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1Request Your Appointment
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2Visit Your Nearest Fastest Labs
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3Quickly Receive Your Test Results
Community-Focused Service You Can Trust
At Fastest Labs of Rancho Cucamonga, we're more than a testing facility—we're your neighbors invested in this community's well-being. We recognize that drug testing and DNA testing involve life's most sensitive situations, from workplace safety initiatives to family paternity questions. This responsibility shapes everything we do.
Unlike impersonal medical labs where testing feels transactional, we provide personalized attention that transforms potentially uncomfortable experiences into ones where you feel supported and informed. Our team doesn't just process samples; we answer questions, offer guidance, and ensure you understand each step of the process with clarity and confidence.