L-Phenylalanine reviews: what real users say
We read 68 first-hand mentions of L-Phenylalanine from health and supplement communities. 18 of them say clearly how it went — and 58% of those say it helped.
Where people say it works: energy (75% of 8).
Most common complaints: drowsiness, anxiety, depression.
Positive experiences
“I take 500mg L-Phenylalanine when I first get up in the morning and it appears to work well. I used to be terrible at getting out of bed in the morning, and have seen a great improvement over the last ~3 months.”
“Now I take l-phenylalanine twice a day (500mg) for ADHD and feel great.”
“I was using 1500mg L-phenylalanine daily with fantastic results for about two months”
“I find L-Tyrosine and L-Phenylalinine give me a daily boost of energy if I take them in the morning”
“tyrosine and L-phenylalanine have been extremely effective the last time I used them.”
“Swap tyrosine for l-phenylalanine and those are also my go to things to get me in the zone.”
Negative and mixed experiences
“I'm not gonna take phenylalanine ever again. I've noticed so many bad symptoms because of it, i thought i just wasn't dosing it right.”
“I have tried...L phenylalanine...but nothing made a difference”
“I've been taking this in the morning, but it makes me incredibly sleepy.”
“Phe supplementation never needs to be done...normal diet to you and me provides not only what the body needs, but an abundance.”
“L-Phenylalanin... severely worsened my symptoms, basically causing a full-blown depression”
Quotes are verbatim and link to the original public discussion. Information only — not medical advice. How we collect reports