Fentanyl Test Strips – Ten Pack

Fentanyl Test Strips – Ten Pack


In stock


Fentanyl is a synthetic opioid many times more powerful than heroin that is contaminating the illicit drug supply. Thousands of people have died accidentally ingesting fentanyl-adulterated drugs. DanceSafe fentanyl test strips can quickly and reliably detect fentanyl and most of its known analogs in any drug sample. And unlike other strips on the market, they do not produce false positives at optimum drug checking concentrations.

One instruction sheet included. Micro scoops (for measuring powders) sold separately.


Basic Instructions for Using Fentanyl Test Strips

When testing your drugs for fentanyl, it is very important to dilute correctly, and wait three minutes before assessing the results. Here is a quick reference chart, but make sure and read all the instructions before you use the strips.

DISCLAIMER: No fentanyl test strips can detect every fentanyl analog, nor can they detect non-fentanyl related opioids. A negative result, therefore does not guarantee that your drug sample is free from all synthetic opioids. No drug use is 100% safe. All drug use contains risks.
The Chocolate Chip Cookie Effect
When fentanyl (or a fentanyl analog) is mixed in with heroin, cocaine, or other drugs, it is NEVER mixed evenly. Powder from one side of a baggie (or on the edge of a pressed tablet) may contain no fentanyl at all, yet powder from the other side may contain a fatal dose. This is called the “chocolate chip cookie effect” and is why it is best to test every bit of the drug you intend to consume.

Detailed Instructions

The best method is to test everything you intend to consume.
Testing everything requires dissolving your entire dose or batch in water. For drugs consumed orally, you can dissolve a single dose before you ingest it and then just drink the water when you’re done (assuming the result is negative). The strips do not contaminate the water. For drugs like cocaine or meth that people like to insufflate (snort), you can get the powder back by evaporating the water. (See instructions below.)

If you can’ test your entire dose or batch, at least test a good cross section. We recommend a minimum of 50 mg. Make sure and crush any crystals, shards, or rocks into a fine powder, then mix the powder as thoroughly as possible by stirring or shaking the baggie. This helps distribute any fentanyl that might be clumped up inside.

Preparing and diluting powdered drugs

Whether you are testing everything you intend to consume or a smaller portion of your drugs, you need to dilute the powder in the correct amount of water.

1. Weigh your drugs. Use a milligram scale to get the weight of the crystals or powder you are going to test. Write it down so you don’t forget. If you don’t have a milligram scale, you can use a 10 mg micro scoop.

A level scoop of finely crushed powder (not rounded) is approximately ten milligrams.

2. Place your drugs into a small container. If you are testing 50 mg or less, a standard bottle cap from any 20 oz soda bottle works great. If you are testing more than 50mg, use a cup or bowl.

A standard plastic bottle cap holds approximately one teaspoon (5 ml) of water when almost full.

3. Add the right amount of water. This step is very important. Add one teaspoon of water (5 ml) for every 50 mg of powder. Use proper measuring spoons, like those for baking. If you don’t have proper measuring spoons, remember a standard plastic bottle cap is a bit larger than a teaspoon.


1 US teaspoon is almost exactly 5 ml
1 US tablespoon is three teaspoons (15 ml)
1 US cup is 48 teaspoons (240 ml)

4. Stir the mixture until completely dissolved.

Preparing and diluting ecstasy tablets and pharmaceutical pills

Counterfeit pharmaceutical tablets containing fentanyl kill thousands of people every year, and they can look exactly like the real ones. There is no way to know whether illicitly-purchased pharmaceuticals contain fentanyl without testing them first.

1. Crush the entire tablet into a fine powder.

2. Pour the powder into a small cup.

3. Add approximately four tablespoons (a quarter cup) of water.

4. Stir the mixture. Binder may not completely dissolve. That’s ok.

Preparing and diluting blotter LSD

1. Cut a small corner off the blotter.

2. Soak it in a teaspoon of water for 10 minutes.

If you inject drugs

If you are an IV drug user, it is best to test every time you inject. The easiest method is to test the residue from your spoon or cooker.

1. After preparing your shot, set the needle aside and wait to inject.

2. Add about 1 ml (1/5th of a teaspoon, or 1 cc) of clean water into the spoon or cooker.

Using the Strips

After you have diluted your drug using our instructions above, it’s time to use the strips.

1. Hold the yellow end of the test strip and insert the other end into the liquid.

2. Allow the liquid to travel up the strip into the test area for a full 15 seconds.

3. Remove the strip and set it down on a flat surface. Wait about three minutes.

Interpreting the Results

Wait three minutes. One red line on top (closer to the yellow end) is a positive result for the presence of fentanyl. Two red lines is a negative result. The lower red line may be significantly lighter than the upper red line. If you can see it at all after waiting three minutes, no matter how faint, it is still negative. No red lines (or one red line on the bottom, closer to the dotted end) means the test is invalid. Usually this happens because the liquid did not travel far enough up the test strip.

Getting Your Powder Back

You can get your powder back by evaporating away the water. There are many ways to do this, but one of the most common is pouring the liquid into a flat-bottomed glass or ceramic tray (like a Pyrex pie dish) and heating it.

1. Put the pan in the oven on the lowest heat setting, no higher than 225 degrees F.
2. Keep the oven door cracked and keep a close eye on things. This process can take minutes to hours depending on how much water you’re evaporating.
3. When all the water has evaporated, a film/residue will appear on the bottom of the pan. Take the pan out and let it cool.
4. Scrape up the residue using a straight razor or other sharp tool.

Don’t leave your drugs in the oven for too long after they’re dry. They won’t burn right away, but they will eventually.

Additional information

Weight 0.1 lbs
Dimensions 1 × 1 × 0.5 in