🛒 Cart

Marquis Reagent Spot Test Kit

★★★★★ 266 verified reviews

$20.00

The most versatile reagent in the Bunk Police lineup. Marquis is the go-to primary identification kit trusted by the harm reduction community since 2011. Get fast, accurate color-change results in seconds with our lab-grade reagent formula.

✓ 50–100 tests per bottle
✓ Results visible in seconds
✓ 20+ page HD color reaction booklet included
✓ Plastic bottle (100 uses) or glass bottle (200 uses)
✓ Ships same day — discreet packaging

What's In The Kit

✓ 1 bottle Marquis reagent
✓ 1 test tube
✓ HD color reaction booklet
✓ Durable jar with instructions

Add to Cart — Plastic Bottle (100 uses) Add to Cart — Glass Bottle (200 uses)

+$5 for glass bottle - Free shipping on orders over $75

🔬 Lab-Grade
Reagents

📦 Same-Day
Shipping

🛡️ Trusted
Since 2011

How It Works

Simple, fast, and accurate — results in seconds.

Place a Sample

Use the included test tube or a ceramic testing platform. A tiny amount is all you need.

Add Reagent

Apply 1–2 drops of Marquis reagent to the sample and observe the color change.

Match the Color

Compare the reaction color to the included HD booklet to identify the substance.

What Customers Are Saying

266 verified reviews — 95% five-star rated

★★★★★

"Shipped fast, product works exactly as described. I contacted support with a question and heard back in under an hour. You don't get that kind of service many places."

— Verified Buyer

★★★★★

"The kit is great — the bottle of reagent and the little booklet were perfect. The laminated pages and ring-wire binding were great quality."

— Trevor R.

★★★★★

"Affordable, very detailed and clear instructions. Super easy to set up and test. Worked like a charm!"

— Carl Z.

Frequently Asked Questions

How many tests do I get per bottle?

The plastic bottle option provides approximately 50–100 tests. The glass bottle option holds more reagent and provides approximately 100–200 tests.

How do I read the results?

Every kit includes a 20+ page HD color reaction booklet with dozens of documented reactions. Simply match the color change to the booklet. Results are typically visible within 30–60 seconds.

What's the shelf life?

Stored in a cool, dark place, Marquis reagent typically lasts 12+ months. The glass bottle option helps preserve reagent freshness longer.

Do you ship discreetly?

Yes. All orders ship in plain, unmarked packaging with no external branding. Same-day shipping on orders placed before the cutoff time.

Should I use more than one type of reagent?

For the most thorough identification, we recommend using 2–3 different reagent kits. Each reagent reacts differently to different compounds, so using multiple kits gives you a more complete picture. Using multiple kits gives you greater confidence in your results.

Complete Your Testing Setup

Pair Marquis with additional reagents for more thorough identification.

Hot

Spot Test Kits
MARQUIS SPOT TEST KIT
$20.00

Select options This product has multiple variants. The options may be chosen on the product page
Hot

Spot Test Kits
EHRLICH SPOT TEST KIT
$20.00

Select options This product has multiple variants. The options may be chosen on the product page
Hot

Spot Test Kits
SIMON’S SPOT TEST KIT
$20.00

Select options This product has multiple variants. The options may be chosen on the product page
Hot

Spot Test Kits
MECKE SPOT TEST KIT
$20.00

Select options This product has multiple variants. The options may be chosen on the product page