We have a total of 9 TN Scientific Reagent Test Kits for your testing needs!

(And a 10th on the way! Check out our Zimmermann Beta Test Program!)

Can only afford one? That's okay, but we never use just one. 

Life is priceless, scroll down for our bundle options, including a brand new Create-Your-Own Bundle Option!



Worried about FYL? You should be!

FYL is extremely hard to detect and DEADLY. 

From 2015 to 2017, society saw a 55% increase in the rate of fatal drug overdoses, resulting in the HIGHEST number of overdose deaths since systematic reporting began in 2000*. 

Toxicology data has proven that this dramatic increase is attributable to the deadly opioid FYL. 


In 2017, more than 28,000 deaths involved synthetic opioids*.


Use TN Scientific FYL Testing Strips to test a substance for the presence of FYL. By using this test strip, you will be able to detect up to 200 ng/ml.


We will always have our most up to date TN Scientific Reagent Substance Testing Kit Color Charts posted here for your reference and convenience.

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2020 Hofmann Color Chart copy.png
2020 Marquis Color Chart.png
2020 Simon_s Color Chart copy.png
2020 Mandelin Color Chart copy.png
2020 Mecke Color Chart.png
2020 Ehrlich Color Chart.png
2020 Liebermann Color Chart copy.png
2020 Scott_s Color Chart.png
2020 Frohde Color Chart.png





Questions? Try asking a question in the form (TN SCIENTIFIC FORUM)! You're always welcome to shoot us a message for any reason. We genuinely enjoy chatting with you guys.

Use the built-in contact form for the fastest response.


Phone: 1 (865) 243-6011

We are constantly innovating and developing new tests and products. Sign up with us for updates.

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© 2018 - 2020 | TN Scientific LLC | |


This refund policy is mostly to cover our butts from people screwing us. Generally, we don't mind doing quick and easy refunds or we will quickly send replacements no questions asked so long as you are understanding and are willing to work with us.

You may return any item in its unused original condition within 30 days of purchase and we will gladly provide a refund or exchange.


We do not refund the shipping cost and you are responsible for the cost of return shipping.

If your package is misdelivered because you fail to provide the correct required information such as: address, email, & phone number you will not be entitled to a refund.

To get a refund or replacement please contact us.