- 50/50 blend of the D- and L- forms of the amino acid phenylalanine
- Supports an alert state
- 750 mg per tablet
Source Naturals DL-Phenylalanine, or DLPA, is a 50/50 blend of the D- and L- forms of the amino acid phenylalanine (phenylalanine is one of the few amino acids that can be utilized in its D- form). Researchers believe D-phenylalanine (DPA) inhibits the action of an enzyme that breaks down endorphins and enkephalins. These are proteins which bind to opiate receptor sites in the brain. 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.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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Supplement Facts
Serving Size 1 Tablet
| Amount Per Serving | % Daily Value |
|---|---|
| Calcium
54 mg
|
5% |
| DL-Phenylalanine
750 mg
|
† |
†Daily Value not established.
Other ingredients: dibasic calcium phosphate, stearic acid, sorbitol, magnesium stearate, silica, and 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 breastfeeding, or with antidepressant drugs containing MAO or SSR inhibitors. If you have chronic high blood pressure, take after meals and/or consult your healthcare professional.
Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.
Ratings and Reviews
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Great to learn
I was doing research and trying to find different vitamins and products that help you overall. This was one that really keeps you alert, focused, and is really important. It's great that Swanson Vitamins has a glossary where you can read about, learn and appreciate how useful certain products can be for your mind and body. Thank you Swanson for bringing an overall well-being.Helpful supplement
DLPA is one of my regular supplements, wouldn't be without it. Although the pill size of this one is larger than Swanson's 500mg one, this one delivers 750mg. I think I benefit from this higher dosage.