L-tyrosine is a conditionally essential amino acid required for the production of the neurotransmitters dopamine, adrenaline, and norepinephrine, as well as the skin pigment melanin. It is highly beneficial for people with thyroid disorders. It helps in the phases of intensive training. Relieves chronic muscle tension. Improves attention and concentration. Treat insomnia. Helps against general malaise. provides optimal maintenance of the brain. It is recommended to take 1 capsule 1 to 3 times a day, preferably between meals. For adults only. Consult a physician if you are pregnant/nursing, taking medication, or have a medical condition. People with thyroid (hyperthyroidism), melanoma, or those taking MAO inhibitors or other mood-altering medications should consult a physician before consuming this product. Natural color variation may occur in this product. Manufactured in facilities that handle wheat, gluten, soy, milk, eggs, fish, crustaceans and nuts. Keep in a cool, dry place, out of the reach of young children