Fentanyl can appear in several forms, making it difficult to identify visually:

• Powdered fentanyl often looks like many other drugs and can be white, gray, or tan in color. It is commonly mixed with heroin, cocaine, methamphetamine, or other substances

• Pill form : Illicit fentanyl is frequently pressed into counterfeit pills that closely resemble legitimate prescription opioids such as oxycodone, Percocet, Vicodin, Xanax, Adderall, and others. These fake pills can be nearly identical in appearance to real medications, making them hard to distinguish

• Liquid fentanyl can be found in nasal sprays, eye drops, or dropped onto paper or small candies, similar to LSD administration

• Rainbow fentanyl : A newer form where fentanyl powder or pills are dyed in bright, multiple colors to mimic candy and potentially appeal to younger users. The colors do not indicate potency but are used to evade detection and attract attention

Because fentanyl is often mixed with other drugs or disguised as other pills, it is nearly impossible to tell if a drug contains fentanyl just by looking at it. The only reliable way to detect fentanyl in a substance is through drug testing kits or fentanyl test strips

. In summary, fentanyl can look like white or colored powder, legitimate or counterfeit pills, or liquid in sprays or drops, often mimicking other drugs or medications