The tryptophan supplements available on this site meet the highest standards set by the FDA — CP2000. The level of purity of these products exceeds the requirements for medications (USP — U.S. Pharmaceutical grade). They have been tested and meet the CP 2000 standard of purity required of intravenous pharmaceutical medication. This is a higher standard than that required for prescription medication.
Currently, only a few sources in the United States have met these FDA purity standards and are authorized to market tryptophan. Other than these few vendors, whose products have been evaluated, all the tryptophan available on the Internet is either:
• 5-HTP, which is less effective, or
• Veterinary grade, not intended for human consumption.
In sum, this site is one of the very few sources of pharmaceutical-grade tryptophan currently available through the Internet. The FDA has performed multiple evaluations of these products, confirming the purity of this tryptophan through extensive testing.
