Which supplement works better to reduce muscle damage: black pepper fruit extract (piperine) or l-carnitine l-tartrate?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Black Pepper Fruit Extract (Piperine)
L-Carnitine L-Tartrate

Effectiveness Rating: Black Pepper Fruit Extract (Piperine) vs L-Carnitine L-Tartrate

The effectiveness rating is a measure of the supplements' ability to reduce muscle damage. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up l-carnitine l-tartrate is great, while the evidence backing up black pepper fruit extract (piperine) is good. L-Carnitine L-Tartrate should be able to reduce muscle damage more effectively, however both supplements should provide positive results.

Confidence Rating: Black Pepper Fruit Extract (Piperine) vs L-Carnitine L-Tartrate

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.

L-Carnitine L-Tartrate's confidence rating is higher than black pepper fruit extract (piperine)'s. This means l-carnitine l-tartrate's effectiveness rating from above is more valid. This does not necessarily mean that l-carnitine l-tartrate works better, it simply means the evidence (included in this database) backing up l-carnitine l-tartrate is more established.