Which supplement works better to improve cognitive ability: bacopa monnieri or guarana?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Bacopa Monnieri
Guarana

Effectiveness Rating: Bacopa Monnieri vs Guarana

The effectiveness rating is a measure of the supplements' ability to improve cognitive ability. This rating answers the question of whether or not a supplement does what it claims. Both bacopa monnieri and guarana have good (but not great) evidence showing they may be able to improve cognitive ability. Both supplements should provide some positive results.

Confidence Rating: Bacopa Monnieri vs Guarana

Another factor to take into account when comparing supplements is the confidence rating. This rating is a measure of how valid each supplement's effectiveness rating is. Remember, the confidence rating is a measure of how much you can trust the effectiveness rating. This rating is based on how many studies are included in the database on a supplement's claims. Ideally, you want a high effectiveness AND confidence rating.

Bacopa Monnieri's confidence rating is higher than guarana's. This means bacopa monnieri's effectiveness rating from above is more valid. This does not necessarily mean that bacopa monnieri works better, it simply means the evidence (included in this database) backing up bacopa monnieri is more established.