Doctor's Best D-Phenylalanine 500mg 60 Capsules

Doctor's Best D-Phenylalanine 500mg 60 Capsules
What is D-Phenylalanine? 
Doctor’s Best D-phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine. 
D- and L-phenylalanine are structural mirror images of each other. 
D-phenylalanine is reported to inhibit an enzyme (enkephalinase) that degrades enkephalins, which are naturally occurring substances in the body that belong to the class of compounds known as "endorphins."
How Does It Work?
D-phenylalanine slows the action of the enzymes carboxypeptidase A, endorphinase and enkephalinase that degrade endorphins. 
Endorphins are neurotransmitters your body releases that bind to specialized receptors that trigger two actions. 
This process blocks the neurotransmitters that cause you to experience pain. 
It also makes your brain release more of the neurotransmitter dopamine. 
D-phenylalanine has twice the endorphinase inhibitory effect of D, L-phenylalanine. 
Slowing down this endorphin-reducing mechanism may help diminish pain.
Benefits:
Non-protein amino acid related to the essential amino acid L-phenylalanine
D- and L-phenylalanine are structural mirror images of each other
D-phenylalanine is reported to inhibit an enzyme that degrades enkephalins, which are naturally occurring substances in the body that belong to the class of compounds known as "endorphins.”
Helps extend life of endorphins and enkephalins
Helps improve comfort levels associated with pain
Helps increase dopamine levels
Gluten Free, Non-GMO, Vegetarian
Active Ingredients:
1 Capsule contains:
D-Phenylalanine 500mg
Other ingredients:
Modified cellulose (vegetarian capsule), cellulose, magnesium stearate (vegetable source). 
Non-GMO
Gluten-free
Directions:
Dose (adults): Take 1 or 2 capsules daily, between meals, or as recommended by a nutritionally-informed physician.
Cautions: 
Phenylalanine supplements should not be taken by individuals with phenylketonuria (PKU), children, pregnant or lactating women, people with high blood pressure, anyone taking anti-psychotic medication or MAO inhibitors.
Storage:
Store in a cool dry place.