28 panel drug test
$6.99 Original price was: $6.99.$4.49Current price is: $4.49.
The Serenity Ultra 28 panel drug test cup provides expanded preliminary urine screening for traditional drugs and specialty targets including fentanyl, K2/Spice, kratom, LSD, 6-MAM, psilocybin, Alpha-PVP, xylazine, tianeptine/ZAZA, methylphenidate and EtG. This Forensic Use Only configuration also includes three specimen-validity checks.
- Expanded 28-panel urine screening configuration
- Dedicated FEN/20, K2/50 and KRA/500 panels
- Includes LSD/50, 6-MAM/10, PSY/500 and Alpha-PVP/500
- Includes XYL/1000, TIA/500 and MPD/1000 screening
- Separate THC screening levels included in the Ultra configuration
- 3 adulteration checks: Specific Gravity, pH and Creatinine
- Integrated temperature strip and urine collection cup
- Forensic Use Only configuration
- Quantity pricing for bulk orders
FREE SHIPPING 100 cups or more, same day shipping
| SERENITY ULTRA: 28 Panel Drug Test Cup + 3 ADLTX |
| AMP/1000, BZO/300, BAR/300, BUP/10, COC/300, ETG/300, FEN/20, KET/1000, K2/50, KRA/500, LSD/50, 6-MAM/10, MDMA/500, THC/25, THC/50, MTD/300, MET/1000, OPI/300, MPD/1000, OXY/100, PCP/25, PSY/500, TRA/100, TCA/1000, Alpha-PVP/500, XYL/1000, TIA/500 + 3 ADLTX |
28 Panel Drug Test Cup for Expanded Urine Screening
The 28 panel drug test is an expanded urine screening cup built for programs that need broader coverage than a basic 5-panel, 10-panel or 12-panel configuration. It combines specimen collection, preliminary qualitative drug screening and three specimen-validity checks in one integrated device.
This ULTRA configuration covers traditional drug classes together with several specialty targets, including xylazine, tianeptine/ZAZA, Alpha-PVP, kratom, K2/Spice, ketamine, fentanyl, LSD, psilocybin, 6-MAM and methylphenidate.
It also includes screening for amphetamines, barbiturates, benzodiazepines, buprenorphine, cocaine, MDMA, methamphetamine, methadone, opiates, oxycodone, PCP, TCA, EtG and cannabinoids.
The cup includes three additional ADLTX specimen-validity indicators for Specific Gravity, pH and Creatinine. These indicators are separate from the drug-screening panels.
This configuration is labeled Forensic Use Only. Buyers comparing expanded products can also review the complete 28 panel drug test cup category.
DrugTestingCup.com also carries a different 28 panel configuration with Medetomidine and Nitazene. The two products should not be treated as interchangeable because their specialty panels differ.
Expanded Screening for Xylazine, ZAZA, Kratom, K2 and Other Specialty Targets
One reason buyers choose a 28 panel drug test cup is the broader specialty-panel coverage. A conventional multi-panel cup may cover common drugs of abuse but omit emerging or less-common targets that require their own assays.
This product includes XYL/1000 xylazine screening. Xylazine is a separate target from fentanyl, opiates and benzodiazepines. If only xylazine screening is required, compare the dedicated Xylazine Drug Test Kit.
The cup also includes TIA/500 for tianeptine, often referenced by product or street names such as ZAZA. Tianeptine requires its own assay and should not be assumed to appear under an opiate, benzodiazepine or antidepressant panel.
KRA/500 provides kratom-related screening. Kratom assays can differ in their target compounds and cross-reactivity, so a general KRA result should not automatically be described as a dedicated 7-hydroxymitragynine result. Our 7-OH and kratom drug testing guide explains this distinction.
The configuration also includes separate K2/50 synthetic cannabinoid and cannabinoid/THC screening. A conventional THC assay should not automatically be assumed to provide the same screening coverage as a dedicated K2/Spice assay.
Other specialty targets include KET/1000 ketamine, LSD/50, PY/500 psilocybin, MPD/1000 methylphenidate, a-PVP/500 and 6-MAM/10. Each screening area should be interpreted separately according to the current product instructions.
What Does This 28 Panel Drug Test Screen For?
The current 28 panel urine drug test configuration lists the following screening targets and cutoff concentrations. Always compare the physical product label and current package insert before placing a repeat or high-volume order.
| Drug or Drug Class | Abbreviation | Cutoff |
| Amphetamines | AMP | 1,000 ng/mL |
| Benzodiazepines | BZO | 300 ng/mL |
| Barbiturates | BAR | 300 ng/mL |
| Buprenorphine | BUP | 10 ng/mL |
| Cocaine Metabolite | COC | 300 ng/mL |
| Ethyl Glucuronide | ETG | 300 ng/mL |
| Fentanyl | FEN | 20 ng/mL |
| Ketamine | KET | 1,000 ng/mL |
| Synthetic Cannabinoid / K2 | K2 | 50 ng/mL |
| Kratom | KRA | 500 ng/mL |
| LSD | LSD | 50 ng/mL |
| 6-Monoacetylmorphine | 6-MAM | 10 ng/mL |
| MDMA / Ecstasy | MDMA | 500 ng/mL |
| Low-Cutoff Cannabinoid / Delta-8 Configuration | D8 / THC | 25 ng/mL |
| Marijuana Metabolite | THC | 50 ng/mL |
| Methadone | MTD | 300 ng/mL |
| Methamphetamine | MET | 1,000 ng/mL |
| Opiates / Morphine | OPI | 300 ng/mL |
| Methylphenidate | MPD | 1,000 ng/mL |
| Oxycodone | OXY | 100 ng/mL |
| Phencyclidine | PCP | 25 ng/mL |
| Psilocybin | PY / PSY | 500 ng/mL |
| Tramadol | TRA | 100 ng/mL |
| Tricyclic Antidepressants | TCA | 1,000 ng/mL |
| Alpha-PVP | a-PVP | 500 ng/mL |
| Xylazine | XYL | 1,000 ng/mL |
| Tianeptine / ZAZA | TIA | 500 ng/mL |
Cutoff concentrations are screening thresholds. They do not show the exact amount of a substance present, when it was used or whether a person is currently impaired. Detection windows can also vary, so fixed day-by-day estimates should not be treated as guaranteed timelines.
For more information, see our drug test cutoff level guide.
How to Use and Read the 28 Panel Drug Test Cup
Before testing, check the expiration date and confirm that the device packaging is intact. Allow the product and urine specimen to reach the conditions specified in the package insert before opening the device.
Collect urine directly in the cup, secure the lid and keep the device upright. Review the temperature indicator and specimen-validity checks during the time period specified by the manufacturer. Allow the test strips to develop and read the results only during the stated result window.
- Negative:Â the Control line and Test line appear for the individual screening panel.
- Preliminary non-negative:Â the Control line appears but the Test line for that panel is absent.
- Invalid:Â the required Control line does not appear. Do not interpret that panel and repeat the test according to the product instructions.
A faint Test line should be interpreted according to the manufacturer’s instructions. Line darkness should not be used to estimate drug concentration.
The U.S. Food and Drug Administration explains that rapid drugs-of-abuse tests provide qualitative screening results. Preliminary positive results may require a more specific laboratory method for confirmation.

Adulterants test
Adulterants testing with these strips is a process that searches for any kind of tampering with a urine sample from the donor.
Those additional ADLTX strips will further increase the minimum chance that the sample can be changed or anyhow tempered with before testing.
Some of the commonly used adulterants in urine drug testing are:
- Table salt
- Household vinegar
- Liquid laundry bleach
- Lemon juice.
- Diluted urine (creatinine below 15 mg/mL).
- Visine eye drops
The urine drug testing cups with adulteration drug test are designed to be user-friendly and reliable.

Key Features and Benefits
1. Comprehensive Detection
The 28 panel drug test cup is designed to detect an extensive range of substances, making it a complete solution for drug testing in various settings. From widely used substances like THC and cocaine to emerging drugs like FEN (Fentanyl), K2 (Synthetic Cannabinoids), ZAZA (Tianeptine), and XYL (Xylazine), this test ensures nothing is missed.
2. Industry-Leading Sensitivity
The 28 panel drug test cup offers high sensitivity and low cutoff levels, allowing for accurate detection of substances even at trace levels. Some highlights include:
3. Fast, Reliable Results
Results are available within 5 minutes, offering rapid insights to aid in decision-making. The clear and easy-to-read test lines minimize user error, providing confidence in every test administered.
4. Built-In Specimen Validity Features
To ensure sample integrity, each test cup is equipped with:
- A built-in temperature strip for immediate verification.
- Tamper-evident seals to detect potential sample adulteration.
5. Easy-to-Use Design
The self-contained design eliminates the need for additional handling, making it hygienic and convenient. Simply collect the sample, seal the cup, and wait for results to develop.
6. Extended Detection Window
Each panel is carefully calibrated to detect substances over a wide detection window, providing accurate results for both recent and past use. For example:
- KRA (Kratom): Detectable up to 9 days.
- PY (Psilocybin): Identifies usage within a 15-hour window.
Forensic Use Only and Bulk Ordering
This specific 28 panel drug test is labeled Forensic Use Only. The exact product label and current package insert control its intended use.
Do not market this configuration broadly as a clinical, treatment-center or general workplace device simply because the same analytes may also exist in products with other regulatory classifications. Similar-looking drug tests can have different intended-use designations.
Appropriate forensic applications may include court systems, law-enforcement agencies, probation and parole programs, correctional facilities, detention centers and laboratories supporting authorized forensic programs.
Read our Forensic Use Only policy and customer acknowledgement before purchase or use.
DrugTestingCup.com offers volume pricing for buyers ordering 28 panel drug test cups in bulk. Qualifying orders of 100 cups or more receive free shipping, and eligible in-stock orders placed before 3 PM EST can ship the same business day.
For high-volume and repeat orders, verify the exact panel configuration before purchase. This is especially important because DrugTestingCup.com carries more than one 28-panel configuration.
Frequently Asked Questions
What does this 28 panel drug test screen for?
The current ULTRA configuration includes traditional drug classes plus specialty screening targets such as xylazine, tianeptine/ZAZA, Alpha-PVP, kratom, K2/Spice, ketamine, fentanyl, LSD, psilocybin, 6-MAM and methylphenidate. Always confirm the complete panel list on the current product label and package insert.
Does this 28 panel drug test include fentanyl?
Yes. It includes a dedicated FEN/20 fentanyl screening panel. Fentanyl is interpreted separately from the OPI, 6-MAM, oxycodone, buprenorphine and methadone panels.
Does this cup test for xylazine?
Yes. It includes XYL/1000 for xylazine screening.
Does it include tianeptine or ZAZA?
Yes. This configuration includes TIA/500 for tianeptine-related screening.
Does this 28 panel drug test include kratom?
Yes. The cup includes KRA/500. Review the manufacturer’s documentation for the exact assay target and cross-reactivity.
Does the test include K2 and THC?
Yes. The configuration includes a dedicated K2/50 synthetic-cannabinoid panel as well as cannabinoid screening at separate listed cutoffs.
Does this product include 6-MAM?
Yes. It includes a dedicated 6-MAM/10 panel. This is interpreted separately from the broader OPI/300 panel.
What are the three ADLTX checks?
The specimen-validity indicators are Specific Gravity, pH and Creatinine. They are separate from the drug-screening panels.
Is this 28 panel drug test CLIA waived?
No. This specific ULTRA configuration is labeled Forensic Use Only.
Are preliminary non-negative results final?
No. Rapid urine screening provides preliminary qualitative results. Laboratory confirmation should be used when required by the testing program or when a result is consequential or disputed.
Are both 28 panel products on DrugTestingCup.com the same?
No. DrugTestingCup.com carries more than one 28-panel configuration. This ULTRA product includes targets such as tianeptine/ZAZA and Alpha-PVP, while another 28-panel configuration includes Medetomidine and Nitazene. Compare the exact panel list before ordering.
Can I buy 28 panel drug test cups in bulk?
Yes. Quantity pricing is available, and qualifying orders of 100 cups or more receive free shipping.
| Weight | 0.14 lbs |
|---|---|
| Dimensions | 5 × 3 × 3 in |
| Drug tested | 6-MAM, ADLTX, Alpha (PVP), AMP, BAR, BUP, BZO, COC, Delta 8, EtG, FEN, K2/Spice, KET, KRA, LSD, MDMA, MET, Methadone (MTD), MPD, OPI/MOR, OXY, PCP, PSY, TCA, THC, TIA, TMA, ZAZA |
| Package size | Pack (100) |
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All orders will only be shipped same-day if they are placed before 3.00pm EST time. Also next day shipments will not be delivered on weekends and that the time taken on air shipments should be counted with business days.
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