Amino Acids - do they help?

Hi dudes,

just wondering if there is any evidence that amino acids can help us?

i readon a hairloss site that L-Arginine can help with erections but i’ve been on it for a while but haven’t noticed any difference.

I did however read that L-Tyrosine is a precursor to dopamine…

and if my suspicions are correct that i have elevated prolactin then dopamine might help counteract the prolactin?

any comments?

David