Cholinergic supplements are also sometimes referrred to as choline sources. The cholinergic system produces the neurotransmitter acetylcholine. This compound may play an important role in focus and memory.
Nootropics Depot offers cholinergic powders and capsules for sale in a variety of different products, including Alpha-GPC, Citicoline Sodium and Choline L-Bitartrate. Choline supplements may support mood, memory, and focus.