Source Naturals DMAE, Dimethylaminoethanol Bitartrate – Supports Mental Concentration – 200 Tablets

Customers find this supplement effective at low doses, improving mental focus and brain function, with one noting it helps process thoughts without medication. Moreover, the product receives positive feedback for its energy-boosting effects, with one customer mentioning it helps feel alert without needing as much sleep. Additionally, customers appreciate its value for money, skin benefits, and positive effects on memory. However, side effects are mixed, with some customers feeling better while others experience headaches.