Vitamin Complex
Vitamin B Complex
A group of essential vitamins that support energy metabolism, neurotransmitter synthesis, and brain health.
KÖGN Health grades Vitamin B Complex as A+ (Strong evidence) and rates it 4.5 out of 5.
Last reviewed · June 2026
Primary effects
- Increased energy
- Improved mood
- Cognitive support
How it works
Supports multiple biochemical pathways essential for cognitive function and energy production.
Overview
B-vitamin complex includes essential nutrients such as B1, B6, B9, and B12, all of which play critical roles in brain function. Deficiencies in these vitamins can significantly impair cognitive performance and mood. While supplementation is most beneficial in cases of deficiency, it also supports overall neurological efficiency and energy metabolism in general populations.
Related ingredients
Graded entries that target the same cognitive goals.
Categories
Educational information, not medical advice. The evidence grade is KÖGN’s editorial assessment of published research, not a health claim. Speak to a qualified clinician before changing what you take.