Dl-Phenylalanine side effects
Across 77 first-hand reports, people mentioned a side effect 5 times (about 6 per 100 reports). The most common: dopamine downregulation, norepinephrine overproduction, insomnia. User reports show what people notice — they can't tell you whether Dl-Phenylalanine is safe for you.
Reported side effects
dopamine downregulation1
norepinephrine overproduction1
insomnia1
stomach issues1
anxiety1
In their own words
“I feel more energy and focus. Even my mood is better. It works every time and the effect is really niticible. But after 30 minutes or more, I start to feel anxiety”
“I felt no difference in energy/motivation/mood, and fell asleep afterward.”
“Dl-phenylalanine at 2 caps is also pretty pronounced but Again keeps me awake.”
Is Dl-Phenylalanine safe? What the research covers
DResearch: None0 meta-analyses · 0 randomized trials on PubMed
None of the top reviews we found focus on safety. All research on Dl-Phenylalanine.