ingredients studies - cognitive enhancers

Dr. Timothy J Smith, MD Author of "Renewal:, a Revolutionary Anti-Aging Book" 

Dr. Abazar Habibinia, MDAuthor of "How To Naturally Increase Growth Hormone and Testosterone" 

"Gingko Biloba Extract in the Therapy of Erectile Dysfunction"

"Effects of L-Acetylcholine on Mental Deterioration of the Aged" Clinica Terapeutica 132L: 429 - 510, March 31, 1990 

"Effects of L-Acetylcholine on Mental Deterioration of the Aged" Clinica Terapeutica 132L: 429 - 510, March 31, 1990