Related Products Quick view Choose Options Professional Formulas L-Tryptophan High 2 fl oz MSRP: Was: Now: $23.50 Quick view Choose Options Now Foods L-Tryptophan Powder 2 oz MSRP: Was: Now: $35.99 Quick view Choose Options Pure Encapsulations L-Tryptophan 90c MSRP: Was: Now: $67.80 Quick view Choose Options Pure Encapsulations L-Tryptophan 180c MSRP: Was: Now: $116.20 Quick view Choose Options Professional Formulas L-Methionine 2 fl oz MSRP: Was: Now: $19.50 Quick view Choose Options Professional Formulas L-Glutathione 2 fl oz MSRP: Was: Now: $23.50 Quick view Choose Options Professional Formulas L-Histidine 2 fl oz MSRP: Was: Now: $19.50 Quick view Choose Options Professional Formulas L-Phenylalanine 2 fl oz MSRP: Was: Now: $19.50 Quick view Choose Options Professional Formulas L-Tyrosine 2 fl oz MSRP: Was: Now: $19.50 Description L-Tryptophan 2 fl oz by Professional FormulasIndications: Mood elevation, relaxation, appetite suppression. *Ingredients:l-tryptophan 4x, 7x, 12x