N-Acetyl-DL-tyrosine is widely used in the pharmaceutical and nutraceutical industries due to its role as a precursor to neurotransmitters. It is often incorporated into dietary supplements aimed at enhancing cognitive function, reducing stress, and improving mood. The compound is believed to support the production of dopamine, norepinephrine, and epinephrine, which are crucial for mental alertness and emotional well-being.

In skincare, N-Acetyl-DL-tyrosine is utilized as an active ingredient in formulations designed to improve skin tone and reduce hyperpigmentation. It works by inhibiting the activity of tyrosinase, an enzyme involved in melanin production, making it effective in treatments for conditions like melasma and age spots.

Additionally, it is employed in research settings as a biochemical tool to study enzyme kinetics and metabolic pathways related to amino acid metabolism. Its stability and solubility make it a suitable candidate for various experimental applications in biochemistry and molecular biology.