Which supplement works better to improve cognitive ability: tyrosine or vinpocetine?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Tyrosine
Vinpocetine

Effectiveness Rating: Tyrosine vs Vinpocetine

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. The evidence shows tyrosine is better than vinpocetine in its ability to improve cognitive ability. Tyrosine should provide some positive results while vinpocetine will not.

Confidence Rating: Tyrosine vs Vinpocetine

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.

Both tyrosine and vinpocetine have low confidence ratings. This means neither supplement has an adequate amount of research to back up this claim. A low confidence rating questions the validity of the effectiveness rating.