Doctor’s Best Tyrosine is a conditionally essential amino acid that is a precursor to the catecholamine transmitters: dopamine, epinephrine, and norepinephrine. These are vital messengers for the brain and the body’s other nerve networks.
The thyroid gland also needs tyrosine to make the vital hormone thyroxine. Doctor’s Best L-Tyrosine supplies the pure L-form of tyrosine, an amino acid that has many important functions in the body. Tyrosine or 4-hydroxyphenylalanine, is one of the 22 amino acids that are used by cells to synthesize proteins.
Doctor’s Best was founded in 1990 with the idea to create nutritional supplements rooted in research. From sourcing top-quality ingredients to working with the best manufacturers in the business, their science-based approach to nutrition sets them apart.
Today, Doctor’s Best continue to uphold their founder’s belief that by trusting in science, good health will follow. They put in the work so you can thrive.