COGNITIVE & MOOD SUPPORT: l-Tyrosine promotes production of various neurotransmitters that support emotional well-being and cognitive function.* OCCASIONAL STRESS SUPPORT: l-Tyrosine plays a role in promoting healthy neurotransmitter function in response to environmental and emotional stress.* THYROID SUPPORT: Tyrosine is a key component in the synthesis of thyroid hormones.* PURE INGREDIENTS: Pure Encapsulations manufactures a line of hypoallergenic, research-based dietary supplements. Products are meticulously formulated using pure ingredients designed to deliver predictable results for the benefit of all patients, even the most sensitive.* FREE FROM: Pure Encapsulations products are free from wheat, gluten, egg, peanuts, magnesium stearate, hydrogenated fat, artificial sweeteners and colors, and other unnecessary excipients. Any product containing ingredients derived from allergens, such as soy, dairy or shellfish is clearly labeled. * These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.