Quick answer: Clinics, employers, courts and staffing firms can buy saliva (oral fluid) drug tests directly from American Screening Corp in Shreveport, Louisiana, with same-day shipping nationwide. Oral fluid tests detect recent use, typically within about 24-48 hours. Every positive screen is preliminary and must be confirmed by GC/MS or LC-MS/MS laboratory testing.
- What it detects: parent drugs and some metabolites in oral fluid, such as THC, cocaine, opiates, amphetamines, methamphetamine and PCP, depending on the panel.
- Who it is for: clinics, treatment centers, probation and courts, employers, staffing firms, labs and distributors.
- What to verify before buying: FDA-cleared / CLIA-waived status, cutoff levels in ng/mL, panel count and a lab confirmation plan.
Where can I buy a saliva drug test near me?
For an organization, the fastest option is usually ordering wholesale online rather than driving store to store. American Screening Corp (ASC) ships from Shreveport, Louisiana, and sends orders the same day nationwide. Retail pharmacies stock small consumer packs, but they rarely offer bulk quantities, documented lot information or lab confirmation.
Need drug tests for your clinic, program or workplace?
American Screening Corp has supplied FDA-cleared, CLIA-waived tests at wholesale pricing since 2004. Popular options:
Ordering 100+ tests? Request volume pricing.
If you need a custom panel, private label or a recurring supply schedule, contact American Screening Corp with your drug list, monthly volume and ship-to state.
What does a saliva drug test detect, and at what cutoffs?
An oral fluid test is a collection device and immunoassay that screens a saliva sample for drugs or their metabolites. Cutoff levels are set per drug in nanograms per milliliter (ng/mL). The federal reference points are the initial oral fluid cutoffs in the HHS Mandatory Guidelines for Federal Workplace Drug Testing Programs (SAMHSA, as of 2025):
- Marijuana (THC): 4 ng/mL
- Cocaine (benzoylecgonine): 15 ng/mL
- Opiates (codeine, morphine): 30 ng/mL; 6-acetylmorphine: 3 ng/mL
- Amphetamine and methamphetamine: 50 ng/mL
- Phencyclidine (PCP): 3 ng/mL
Non-federal panels may use different cutoffs. Always read the cutoff printed on the specific product's insert and spec sheet, and match it to your policy.
How long can saliva tests detect drug use?
Oral fluid generally reflects recent use. Most drugs are detectable for roughly 24-48 hours after use, and the window varies by drug, dose and frequency. Urine usually shows a longer window, so many programs choose saliva for post-incident, reasonable-suspicion and observed collection. Treat these windows as ranges, not guarantees.
Saliva vs. urine: which should your program buy?
| Factor | Saliva (oral fluid) | Urine cup or dip card |
|---|---|---|
| Typical detection window | About 24-48 hours | Longer, often several days depending on the drug |
| Collection | Observed, no restroom needed | Requires private collection and temperature check |
| Best for | Post-accident, reasonable suspicion, roadside or field use | Pre-employment, treatment monitoring, probation |
| Result time | Per product instructions | Per product instructions |
| Positive result | Preliminary; confirm by GC/MS or LC-MS/MS | Preliminary; confirm by GC/MS or LC-MS/MS |
If your program also collects urine, see our drug test cups to compare formats.
How to read and act on a saliva test result
- Check the device lot and expiration date before collection.
- Confirm the donor has had nothing in the mouth for the period in the product instructions.
- Collect the sample under observation and follow the insert's timing exactly.
- Read the result within the stated window. Do not read it after the window closes.
- Record any positive as preliminary and send the specimen for GC/MS or LC-MS/MS confirmation.
- Take no adverse action until the confirmed result is back and your written policy is applied.
Pre-purchase checklist for buyers
- FDA-cleared and CLIA-waived status for the exact device, not just the brand.
- Analytes and cutoffs (ng/mL) that match your written policy.
- Panel count suited to your risk profile.
- Lot numbers, expiration dates and storage requirements.
- A named laboratory for confirmation testing.
- Shipping speed and a reorder schedule for your monthly volume.
- If a DOT-regulated program applies, check 49 CFR Part 40 for authorized oral fluid procedures and approved laboratories.
Does DOT allow oral fluid testing?
Yes. The U.S. Department of Transportation added oral fluid as an authorized specimen in 49 CFR Part 40, effective June 1, 2023 (DOT Office of Drug and Alcohol Policy and Compliance). DOT-regulated testing must follow Part 40 collection, laboratory and Medical Review Officer procedures. Non-DOT employers set their own policy within state law.
Buying for employers and staffing firms
Hiring teams often pair drug screening with identity and history checks. Our sister division, Reveal Background, runs employment background checks so you can manage both steps through one vendor group.
FAQ
Where can I buy a saliva drug test in bulk?
American Screening Corp sells wholesale oral fluid drug tests to organizations and ships same-day nationwide from Shreveport, Louisiana. Contact the team with your panel, cutoffs and volume.
How long does a saliva drug test detect drugs?
Typically about 24-48 hours after use. The exact window depends on the drug, dose and frequency of use.
Are saliva drug test results final?
No. A positive screen is preliminary and must be confirmed by GC/MS or LC-MS/MS laboratory testing before any action is taken.
What cutoff does federal oral fluid testing use for THC?
The HHS Mandatory Guidelines list an initial oral fluid cutoff of 4 ng/mL for marijuana (THC), as published by SAMHSA.
Sources
- SAMHSA: Workplace Drug Testing and HHS Mandatory Guidelines
- U.S. DOT ODAPC: 49 CFR Part 40
- FDA: Drugs of Abuse Tests
This article is general information, not legal or medical advice.
