4-FMA (4-Fluoromethamphetamine) is a synthetic stimulant and “entactogen” from the substituted amphetamine family. In powder form, it is typically a white or off-white crystalline substance that has gained a reputation in the “Research Chemical” (RC) market for its unique hybrid effects between traditional amphetamines (like Adderall) and MDMA.
NOTE
This product is only for research purposes and therefore not for human consumption and for technical end-use only. This product is only available to persons of 21 years old and above.
Hazard statement(s)
| H302 | Harmful if swallowed |
| H315 | Causes skin irritation |
| H319 | Causes serious eye irritation |
| H332 | Harmful if inhaled |
| H335 | May cause respiratory irritation |
| H336 | May cause drowsiness or dizziness |
| Precautionary statement(s) | |
| P264 | Wash hands thoroughly after handling |
| P280 | Wear protective gloves/protective clothing/eye protection/face protection |
| P305 + P351 + P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| P337 + P313 | If eye irritation persists: Get medical advice/attention |
| P261 | Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray |
| P271 | Use only outdoors or in a well-ventilated area |
| P304 + P340 | IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing |
| P312 | Call a POISON CENTER or doctor/physician if you feel unwell |
| P403 + P233 | Store in a well-ventilated place. Keep container tightly closed |
| P405 | Store locked up |
| P501 | Dispose of contents/container to a licensed disposal company |
| Weight | 0.5 g |
|---|---|
| Dimensions | 30 × 30 × 1 cm |
| Gram | 2.5-Gram, 5-Gram, 10-Gram, 25-Gram, 50-Gram, 100-Gram |
Chemical Profile & “Hybrid” Experience
4-FMA is a structural analog of methamphetamine, with a fluorine atom at the 4th position of the phenyl ring. This slight modification significantly changes how it interacts with the brain.
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Triple Reuptake Inhibitor: It releases and prevents the reuptake of Dopamine, Norepinephrine, and Serotonin.
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The “Roll-Light” Effect: Unlike 2-MMC (which is mostly functional), 4-FMA provides a noticeable “serotonin push.” Users describe it as a “long-lasting, functional MDMA” or a “super-powered Adderall.”
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Duration: This is one of the longest-lasting RC stimulants. The peak can last 4 to 6 hours, but the total duration (including the “tail” and inability to sleep) often stretches to 12–20 hours.




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