Related Products Quick view Choose Options Professional Formulas L-Tryptophan 2 fl oz MSRP: Was: Now: $21.00 Quick view Choose Options Professional Formulas L-Tryptophan High 2 fl oz MSRP: Was: Now: $25.00 Description L-Tryptophan 2 fl oz by Professional FormulasIndications: Mood elevation, relaxation, appetite suppression. *Ingredients:l-tryptophan 4x, 7x, 12x