L-TYROSINE 500 MG by Douglas Labs

L-ARGININE by Douglas LabsL-Arginine 500 mg capsule.L-Arginine capsules contain 500 mg pure, crystalline L-arginine.

L-PHENYLALANINE 500 MG by Douglas Labs - DiscontinuedL-Phenylalanine 500 mg capsule.L-Phenylalanine supplies 500 mg of pure L-phenylalanine in each capsule.

ACETYL L-CARNITINE 500 MG by Douglas LabsAcetyl-l-carnitine 500 mg capsule.Acetyl-L-Carnitine capsules each contain 500 mg of pure acetyl-L-carnitine.

TAURINE 500 MG by Douglas LabsTaurine supplies 500 mg of the pure crystalline essential amino acid in each capsule.

GABA 500 MG by Douglas LabsGamma Amino Butyric Acid 500 mg capsule.GABA supplies 500 mg of gamma amino butyric acid per each capsule.