4 fa, the RC lovers probably know it, but let’s face it… not everyone gets so deep into molecules. This molecule,4fa, with a small dosage (50 to 100 mg) gives u a speedy feeling, up up and away!

and then if u add a bit more-… 150-200 mg this MDMA alike feeling creeps into your being. This is an RC, research chemical, meaning there is more to know, so… BE CAREFUL! if u overdose

4-Fluoroamphetamine (4-FA) is a synthetic molecule of the amphetamine family.

+++Do not use 4-FA if you have a history of heart-related issues or experience a severe headache after its use.+++

Dosage

Threshold: 40 mg

Light: 40 – 100 mg

Common: 100 – 130 mg

Strong: 130 – 150 mg

Heavy: 150 mg +

Duration

Total: 5 – 8 hours

Onset: 45 – 75 minutes

Come up: 30 – 75 minutes

Peak: 2.5 – 3.5 hours

Offset: 2 – 3 hours

After effects: 6 – 12 hours