mucuna pruriens extract - dopamine boosting supplement - 210 capsules, 1,000mg per serving, 20% l dopa (from velvet beans) (for mood and motivation support) by double wood supplements... double wood supplements mucuna pruriens, commonly known as “velvet bean,” is a legume (seed) that contains l-dopa. l-dopa is a dopamine precursor from which mucune extract is able to derive many of its benefits. dopamine is a vey important neurotransmitter. it plays an imporant role in sleep, memory, mood, motivation, learning, and our reward system. by giving your brain the fuel it needs to create dopamine, mucuna helps support healthy stress levels, mood, anxiety, and motivation. double wood's mucuna pruriens capsules are made / tested in the usa, non-gmo, gluten free, and vegan safe.