Which supplement works better to improve muscular endurance: creatine monohydrate or p-synephrine?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Creatine Monohydrate
P-Synephrine

Effectiveness Rating: Creatine Monohydrate vs P-Synephrine

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

Confidence Rating: Creatine Monohydrate vs P-Synephrine

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.

Creatine Monohydrate's confidence rating is higher than p-synephrine's. This means creatine monohydrate's effectiveness rating from above is more valid. This does not necessarily mean that creatine monohydrate works better, it simply means the evidence (included in this database) backing up creatine monohydrate is more established.