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Bacopa monnieri

Supplement herb / nootropic brain & mood
Aka: Bacopa monnieri, brahmi, Synapsa
Brands seen in Singapore: California Gold Nutrition, Nutricost, Doctor's Best, Himalaya, Nature's Answer
Not medical advice. Check with your doctor or pharmacist before you start, stop or change the timing of anything you take.
How to use
What it’s for
Limited human evidence — memory and cognition
When to take
Daily
Studied for
Trials ran four weeks to six months
Pros & cons
Pros
  • Review: existing clinical trials are called promising
  • Reported side effects are mostly mild and gut-related
  • No lab-parameter changes in the trials reviewed
Cons
  • Small samples; some trials unblinded or uncontrolled
  • Optimal dose, frequency and duration not established
  • Diarrhoea, nausea, cramps and headache reported
Sources
  1. Investigating the Neuroprotective and Cognitive-Enhancing Effects of Bacopa monnieri: A Systematic Review (Antioxidants 2024) — conclusion · read 2026-08-27
    what it says
    “the existing clinical trials show that the use of BM is promising in many brain disorders, there is still an urgent need for new studies that can define better doses … possible adverse events, or drug interactions”
  2. Antioxidants 2024 Bacopa systematic review — dose range and treatment duration across included trials · read 2026-08-27
    what it says
    “a wide range of doses were used (from 150 to 640 mg), and the duration of the treatment ranged from four weeks to six months”
  3. Antioxidants 2024 Bacopa systematic review — limitations of the included studies · read 2026-08-27
    what it says
    “the included studies presented a small sample size, and some did not use a blinded investigation or comparison with a placebo”
  4. Antioxidants 2024 Bacopa systematic review — adverse events reported in humans · read 2026-08-27
    what it says
    “the use by humans can be related to some adverse events (side effects) such as diarrhea, nausea, increased stool frequency, abdominal cramps, stomachache … headache, dizziness, anxiety, insomnia, dry mouth, increased appetite”
  5. Antioxidants 2024 Bacopa systematic review — most common adverse events · read 2026-08-27
    what it says
    “the most common clinical adverse events are mild gastrointestinal complaints, but long-term randomized clinical trials are still necessary to achieve secure doses and reduce adverse events”
  6. Antioxidants 2024 Bacopa systematic review — laboratory parameters · read 2026-08-27
    what it says
    “no modifications in laboratory parameters were found along with the intervention studies”
  7. Antioxidants 2024 Bacopa systematic review — standard experimental human doses · read 2026-08-27
    what it says
    “According to Aguiar and Borowski, the standard experimental doses in humans are between 150 and 3000 mg daily”
  8. Antioxidants 2024 Bacopa systematic review — gaps in dosing evidence · read 2026-08-27
    what it says
    “the optimal dose, frequency, and duration of BM administration have not been clearly established”
  9. HSA — Guidelines on Prohibited and Restricted Ingredients in Health Supplements and Traditional Medicines, GL-CHPB-1-012 Rev. No. 001 (Oct 2025) · read 2026-08-27
    what it says
    “The objective of this guideline is to highlight the substances of concern when used in HS and TM and is not meant to be an exhaustive list [Bacopa monnieri / brahmi not listed in Annex A or B]”
  10. iHerb Singapore — Bacopa category (default order); first 5 distinct brands: California Gold Nutrition, Nutricost, Doctor's Best, Himalaya, Nature's Answer · read 2026-08-27
    what it says
    “Bacopa Extract, 320 mg, 120 Veggie Capsules … Bacopa Monnieri, 120 Capsules (500 mg per Capsule) … Bacopa, 320 mg, 60 Veggie Caps … Organic Bacopa, 60 Caplets … Bacopa, 500 mg, 90 Vegetarian Capsules”

Updated 2026-08-29. Every line above traces to a numbered source. Kozen-X is not a medical device and does not give medical advice. It lists what published sources have written down — nothing more. A pair not listed is unrecorded, not cleared. Before you start, stop or re-time anything, talk to your doctor or pharmacist.