Memoractiv by Thorne Research is a unique memory and brain enhancing supplement which contains:

• Phosphatidylserine, a well researched brain and memory enhancement supplement useful for optimizing cognitive function in the aging brain, improving memory, attention, concentration, mood, reducing depression and stress
  
  
• Ginkgo, a well known brain enhancing supplement documented to increase circulation in the brain and to enhance memory, reaction time, cognition
  
  
• Acetyl-L-Carnitine, a powerful anti-oxidant and memory enhancing supplement, helps improve energy productions in all cells, boosts overall physical or mental energy, is documented to improve memory, may be very useful for Alzheimer's treatment
  
  
• Vinpocetine, the brain and memory enhancing vitamin which improves blood flow to the brain and inside the brain - this improves the supply of oxygen and glucose to your brain cells - which improves overall brain function, including memory
  
  
• Ayurvedic herb Bacopa, a powerful antioxidant and memory enhancing supplement which is reported to to improve learning and enhance memory. Recent studies suggest bacopa significantly improves cognitive ability including an accelerated rate of learning and enhanced memory, especially when used over a period of 12 weeks.

Phosphatidylserine is probably the most researched brain and memory enhancing supplement.

Clinical studies have shown that brain aging has been reversed in some cases by up to 12 years.