Vitamin
Vitamin B9
Also known as: Folate, L-Methylfolate
An essential vitamin required for DNA synthesis, brain development, and neurotransmitter function.
KÖGN Health grades Vitamin B9 as A+ (Strong evidence) and rates it 4.5 out of 5.
Last reviewed · June 2026
Primary effects
- Mood support
- Cognitive clarity
- Brain health
How it works
Supports methylation and neurotransmitter production, influencing mood and cognitive function.
Overview
Vitamin B9 in its active form (L-methylfolate) is critical for neurological function and methylation processes. It plays a key role in neurotransmitter synthesis and has been strongly linked to mood regulation. Deficiency is associated with cognitive decline and mood disorders, making it essential for long-term brain health and stability.
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.