Does Tyrosine Work?
Is Tyrosine Effective? -- Final ThoughtsTyrosine works for phenylketonuria, although tyrosine supplements are not usually recommended for people with this condition (instead, a specially designed supplement is recommended). There is not enough evidence to suggest that tyrosine is effective for other uses. It is important to remember than tyrosine is classified as a dietary supplement, not a drug, and is, therefore, less strictly regulated than drugs.