Which supplement works better to increase strength: caffeine anhydrous or tongkat ali (eurycoma longifolia)?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Caffeine Anhydrous
Tongkat Ali (Eurycoma Longifolia)

Effectiveness Rating: Caffeine Anhydrous vs Tongkat Ali (Eurycoma Longifolia)

The effectiveness rating is a measure of the supplements' ability to increase strength. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up tongkat ali (eurycoma longifolia) is great, while the evidence backing up caffeine anhydrous is good. Tongkat Ali (Eurycoma Longifolia) should be able to increase strength more effectively, however both supplements should provide positive results.

Confidence Rating: Caffeine Anhydrous vs Tongkat Ali (Eurycoma Longifolia)

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.

Caffeine Anhydrous's confidence rating is higher than tongkat ali (eurycoma longifolia)'s. This means caffeine anhydrous's effectiveness rating from above is more valid. This does not necessarily mean that caffeine anhydrous works better, it simply means the evidence (included in this database) backing up caffeine anhydrous is more established.