L-Tyrosine
Key facts
Daily Value (US FDA)—
Tolerable Upper Intake Level (UL)— Reference upper value (cited, not a UL): 10,000 mg
Median (Per day)375 mgP5 20 – P95 1,500
Products641
Sources: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=l.tyrosine2&lang=eng · Health Canada NNHPD monograph: 10-20 g L-tyrosine/day; not to exceed 10 g per single dose
Daily dose across products (mg/day)
Reference upper value (cited, not a UL) 10,000
2 mglog scale · n=6412,500 mg
Label data from official national databases and brand websites, as declared; not lab-verified.
Common questions
Is there an official upper limit for L-Tyrosine?
No UL has been set. We use a cited reference upper value of 10,000 mg per day. It comes from the linked study or assessment and is not a regulatory limit. [source]
How much L-Tyrosine do products usually contain per day?
As of 2026-11-01, 641 products list a comparable daily dose (671 dose records; one product can have several). The median is 375 mg per day, and 90% of records fall between 20 and 1,500 mg. Figures come from labels and are not lab-tested. [source]
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.