Which supplement works better to increase levels of growth hormone: arginine or melatonin?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Arginine
Melatonin

Effectiveness Rating: Arginine vs Melatonin

The effectiveness rating is a measure of the supplements' ability to increase levels of growth hormone. This rating answers the question of whether or not a supplement does what it claims. The evidence shows melatonin is better than arginine in its ability to increase levels of growth hormone. Melatonin should provide some positive results while arginine will not.

Confidence Rating: Arginine vs Melatonin

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 arginine and melatonin have great confidence rating. This means both supplement's effectiveness ratings above are valid.