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Source Naturals DL-Phenylalanine 750 mg 60 tabs

SKU SN0165
Original price $18.50 - Original price $18.50
Original price
$18.50 - $18.50
Current price $18.50

Supports an Alert State

DL-Phenylalanine, or DLPA, is a 50/50 mixture of the D- and L- forms of the amino acid phenylalanine (phenylalanine is one of the few aminos that can be utilized in its D form). Researchers believe that D-phenylalanine (DPA) inhibits the action of an enzyme that breaks down endorphins and enkephalins. These are proteins that bind to opioid receptor sites in the brain, thereby influencing the perception of discomfort. By obstructing the action of this enzyme, DPA may extend the life of endorphins and enkephalins and their positive influence on comfort levels. L-Phenylalanine is the precursor to two neurotransmitters that help support an alert state.*

Amount Per Serving
CalciumAmount Per Serving:54 mg
DL-PhenylalanineAmount Per Serving:750 mg
Other Ingredients:
dibasic calcium phosphate, stearic acid, sorbitol, magnesium stearate, silica, modified cellulose gum
Suggested Use: 1 to 3 tablets daily. 
WARNING: Contains phenylalanine. Not to be used by phenylketonurics, women who are pregnant, may become pregnant, or breast feeding, or with antidepressant drugs containing MAO or SSR inhibitors. If you have chronic high blood pressure, take after meals and/or consult your health care professional. 
Do not use if either tamper evident seal is broken or missing. Keep out of reach of children. 

Customer Reviews

Based on 40 reviews
I would prefer they not add calcium but its still good

I recommend if you are not concerned with calcification of your glands.

Christopher Cox
Helps eases certain discomfort

They're not for pain relief or flavor.. they're mainly for anxiety of withdrawal symptoms and discomfort.

Peter Prehn

Could be placebo, but it is easing some arthritic pain - only 3 weeks though.

More clear headed

This product helps me think more clearly. I take one every morning

Glad I found it

This has done wonders to help relieve my depression and fatigue. Its helping me continue to function through some rough times.