B Complex reviews: what real users say
We read 572 first-hand mentions of B Complex from health and supplement communities. 166 of them say clearly how it went — and 66% of those say it helped.
Where people say it works: energy (95% of 93), mood (91% of 35), focus (84% of 25), sleep (64% of 11).
Where it disappoints: anxiety (only 43% of 23 say better).
Most common complaints: anxiety, insomnia, headache, neuropathy, jitteriness. All side effects →
Positive experiences
“Adding a B complex has totally eliminated my depression lethargy brain fog insomnia and anxiety.”
“What helped me was a B complex vitamin plus magnesium plus vitamin D. Taken over 3mo.”
“Whenever I take my Mega B Complex my depression lifts almost instantly. Like everything seems brighter, happier, and my energy increases.”
“I feel much better when taking a balanced b complex once per week.”
“B Complex has improved my mood heaps but I still struggle with anxiety.”
“I just recently tried taking a B-complex supplement, and I am very surprised how much more mental and physical energy I have.”
Negative and mixed experiences
“I only began the Stress-B Complex and Methyl-B12 within the past several months because my PCP suggested that B12 has shown to 'help with energy levels.' I haven't noticed a positive or negative change when taking them.”
“I've tried boosting GABA with Passion Flower, Valerian, L-Theanine, B-complex and more. No effect.”
“I tried this for 5 days and every single time I started to feeling worse again.”
“the B Complex (taken without adderall/ritalin) caused a massive ramp up in brain anxiety and physiological jitters. ... I stopped taking it.”
“I tried B complex some time ago, I haven’t felt any difference.”
Quotes are verbatim and link to the original public discussion. Information only — not medical advice. How we collect reports