Nandrolone phenylpropionate, NPP test. The best steroids test kit on the market

Before you start the test, you will need 365 nm UV light. For example, you cannot use 395 nm light, as it is not UV light—it is similar to using red light instead of green light. LabMax has specifically designed and manufactured 365 nm UV lights to ensure compatibility with this test. Many of the so-called black lights sold on platforms like Amazon are actually 395 nm lights.

When performing the test, only a small amount of the sample is injected—no more than the amount of test reagent inside the glass ampoules. A color change after injecting the sample does not indicate the presence of a hormone yet; you will need to conduct the UV test to confirm.

Observe the yellow-green fluorescence in vial B and the violet fluorescence in vial A under 365 nm UV light when using GSO oil as the carrier. GSO oil absorbs fluorescence and has different properties compared to MCT oil. With MCT oil, you will notice blue fluorescence in vial B and violet fluorescence in vial A.

However, it doesn’t matter which oil you use as a carrier—if fluorescence is present, it indicates the presence of a hormone. If no fluorescence appears, there is no hormone in the sample. It's important to note that the fluorescence patterns with MCT and GSO oil may vary, but this is not a universal rule. Some steroids may be affected by the oil type, while others may not.

The type of oil used as a carrier does not affect whether the sample will fluoresce if a hormone is present. However, the intensity of the fluorescence can vary depending on the oil, as different oils absorb and reflect light in different ways.

It is simple pass or fail test. Any discoloration under day light will mean that the sample contains other chemicals. Initial colors for MCT oil and raw powder.

Initial colors for GSO oil and MCT oil.

Raw powder under 365 nm UV ligh, left vial A, right vial B.

MCT oil as carrier under 365 nm UV ligh, left vial A, right vial B.

GCO oil as carrier under 365 nm UV ligh, left vial A, right vial B.

GCO oil as carrier under 365 nm UV ligh, left vial A, right vial B.

MCT oil as carrier under 365 nm UV ligh, left vial A, right vial B.

Raw powder under 365 nm UV ligh, left vial A, right vial B.