Compare every L-Tyrosine product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Amino acid precursor to dopamine, norepinephrine, and thyroid hormones
We rank L-Tyrosine by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
What it is
L-Tyrosine is an amino acid, which is a basic building block used by the body to create proteins. It acts as a precursor, meaning it is a starting material that the body uses to produce important chemicals like dopamine, norepinephrine, and thyroid hormones.
Why it's used
It is primarily used to support brain function and mood. By providing the raw materials for neurotransmitters (the chemical messengers that send signals between brain cells), it is often taken to help with focus and stress management.
How it's made
To create the supplement, manufacturers typically use a process called fermentation. This involves using specific bacteria or fungi to break down a sugar source into the amino acid. The resulting liquid is then filtered and purified to isolate the L-Tyrosine, which is dried into a powder and put into capsules or tablets.
What it typically costs
This ingredient is generally mid-range in price. This is because the fermentation process used to produce it is relatively efficient and common, but it requires more controlled industrial equipment than the simplest, cheapest supplements.
Dosage by purpose
Purpose
Typical studied dose
Evidence
cognitive function
100 to 300 mg per kg of body weight
emerging
exercise
100 to 300 mg per kg of body weight
emerging
preventing a decline in cognitive function in response to physical stress
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Amino acid precursor to dopamine, norepinephrine, and thyroid hormones
How does Suppio calculate the best-value L-Tyrosine?
We rank L-Tyrosine by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Are these prices verified?
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
How often are L-Tyrosine prices updated?
Prices across our retailer network are refreshed at least daily.