D-phenylalanine is reported to inhibit an enzyme that degrades enkephalins
D-phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine
Vegetarian
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Width : 2 inch
Height : 2 inch
Length : 4 inch

Item Weight: 2.72 ounce (View shipping rates and policies)
Shipping Weight: 3.2 ounce (View shipping rates and policies)

ASIN : B001TNQKLA