L-Tryptophan 500Mg 60 Caps (Opus One)

What the brand says

Dietary Supplement. Elemental free form.100% Pure nutraceutical grade. Natures safe, effective sleep amino. No sugar, salt, starch, yeast, flavoring, or preservatives added. Components in this product are derived from natural sources. Each and every batch of LT-One Ultra-Premium L-Tryptophan is extensively analyzed for purity and safety using HPLC and endotoxin testing methods. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.