Bacopa Monnieri

Bacopa monnieri is an Ayurvedic nootropic herb traditionally used for memory and cognitive enhancement ('Medhya Rasayana'). C-grade evidence for anxiety improvement, anhedonia (in depression), and alertness. D-grade for attention and Alzheimer's symptoms (no effect). Memory benefits are more consistent but require 8-12 weeks of consistent use. Works primarily via bacosides affecting cholinergic and serotonergic systems. One of the better-studied herbal nootropics but effects are modest and slow-developing.

Quick Answer

What it is

Bacopa monnieri is an Ayurvedic nootropic herb traditionally used for memory and cognitive enhancement ('Medhya Rasayana'). C-grade evidence for anxiety improvement, anhedonia (in depression), and alertness.

Key findings

  • Grade B: Memory (Memory Improvement)
  • Grade C: Anxiety Symptoms (Cognitive Improvement)
  • Grade C: Anhedonia (Major Depressive Disorder (MDD))

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

ℹ️ Quick Facts: Bacopa Monnieri

Quick Facts: Bacopa Monnieri

  • Best Evidence:Grade B
  • Conditions Studied:10
  • Research Outcomes:53
  • Grade B Findings:1
  • Key Effect:Memory Improvement
Outcomes by grade:
A0
B1
C5
D5
10 conditions · 53 outcomes

Detailed Outcomes

Grade:
Effect:
Size:
Sort:
|
B
Memory
Small Improvement
small↑Improves
D
Attention
No effect
11 studies
none
?
Motor Speed
1 study
↑Improves
?
Reaction Time
1 study
↑Improves
?
Working Memory
1 study
↑Improves
C
Anxiety Symptoms
Small Improvement
4 studies
small↓Improves
D
Alzheimer's Disease Symptoms
No effect
none
?
Memory
↑Improves
?
Attention
7 studies
↑Improves
?
Working Memory
5 studies
↑Improves
?
Reaction Time
3 studies
↑Improves
?
Blood Pressure
2 studies
↑Worsens
?
Depression Symptoms
2 studies
↑Worsens
?
Motor Speed
2 studies
↑Improves
?
Arterial Stiffness
1 study
↑Worsens
?
Fatigue Symptoms
1 study
↑Worsens
?
Intermediate-Term Memory
1 study
↑Improves
?
Numerical Memory
1 study
↑Improves
?
Serum BDNF
1 study
↑Improves
?
Short-Term Memory (Simple)
1 study
↑Improves
?
Stress Signs and Symptoms
↑Worsens
?
Verbal Memory
1 study
↑Improves
C
Anhedonia
Small Improvement
small↓Improves
?
Depression Symptoms
1 study
↑Worsens
C
Alertness
Small Improvement
1 study
small↑Improves
?
Attention
1 study
↑Improves
?
Cortisol
↑Worsens
?
Stress Signs and Symptoms
↑Worsens
C
Anxiety Symptoms
Small Improvement
1 study
small↓Improves
?
Attention
1 study
↑Improves
?
Depression Symptoms
1 study
↑Worsens
?
Memory
↑Improves
C
Alertness
Small Improvement
1 study
small↑Improves
?
Attention
1 study
↑Improves
?
Cortisol
↑Worsens
?
Stress Signs and Symptoms
↑Worsens
D
Attention
No effect
11 studies
none
?
Memory
↑Improves
D
Attention
No effect
1 study
none
D
Attention
No effect
1 study
none
?
Memory
↑Improves
?
Basophil Count
1 study
↑Improves
?
Eosinophil count
1 study
↑Worsens
?
Granulocyte Count
1 study
↑Improves
?
Hemoglobin
1 study
↑Improves
?
Lymphocyte Count
1 study
↑Improves
?
Monocyte Count
1 study
↑Improves
?
Processing Speed
1 study
↑Improves
?
Short-Term Memory (Simple)
1 study
↑Improves
?
White Blood Cell Count
1 study
↑Improves
?
Working Memory
1 study
↑Improves
?
Alzheimer's Disease Symptoms
↑Worsens
?
Alzheimer's Disease Symptoms
↑Worsens

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