Eureka Wellbeing
L-Tyrosine Amino Acid Capsules
- L-tyrosine amino-acid formula
- Hydroxypropylmethylcellulose capsule shell
- One capsule daily
Formula at a glance
Inside the formula
L-Tyrosine Amino Acid Capsules
L-tyrosine, magnesium stearate (vegetable source), silicon dioxide; capsule shell: hydroxypropylmethylcellulose.
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Try it for 60 days—even if you open it.
Eureka Wellbeing
Packaging shown may be a different size. Select your preferred pack below.
Eureka Wellbeing
L-Tyrosine Amino Acid Capsules
A focused L-tyrosine amino-acid formula in a cellulose capsule. Take one capsule daily with water, following the directions on the label.
£12.00
In stock
- L-tyrosine amino-acid formula
- Hydroxypropylmethylcellulose capsule shell
- One capsule daily
Delivery costs are calculated at checkout.
Product details
L-Tyrosine Capsules centre on one amino-acid ingredient: L-tyrosine. The supporting ingredients are magnesium stearate from a vegetable source and silicon dioxide, inside a hydroxypropylmethylcellulose capsule shell.
The directions specify one capsule daily with water. No amount of L-tyrosine per capsule is supplied in the current product description, so check the current packaging when comparing strengths. The product specification states that these capsules are made in the UK.
The product specification states no added sugar, starch, salt, gluten, soya or dairy.
Ingredients
L-tyrosine, magnesium stearate (vegetable source), silicon dioxide; capsule shell: hydroxypropylmethylcellulose.
Directions & suitability
Take 1 capsule daily and swallow with water. Do not exceed the stated dosage unless advised by a healthcare professional.
Do not exceed the stated dose. Food supplements should not replace a varied, balanced diet and a healthy lifestyle. Keep out of the reach and sight of children. Store in a cool, dry place.
Delivery & returns
Delivery options and charges are calculated at checkout. Read our returns policy for further information.
If you are not satisfied, contact Eureka within 60 days of receiving your order to request your money back. Opened products are included.
Returns policyA closer look
L-Tyrosine Amino Acid Capsules

L-Tyrosine Capsules centre on one amino-acid ingredient: L-tyrosine. The supporting ingredients are magnesium stearate from a vegetable source and silicon dioxide, inside a hydroxypropylmethylcellulose capsule shell.
The directions specify one capsule daily with water. No amount of L-tyrosine per capsule is supplied in the current product description, so check the current packaging when comparing strengths. The product specification states that these capsules are made in the UK.
The product specification states no added sugar, starch, salt, gluten, soya or dairy.
Choose sizeExplore the ingredients
A closer look at the ingredients and forms in this product. Tap a card for more detail.
L-tyrosineAmino acid
L-tyrosine is the amino acid at the centre of this focused formula.
Cellulose capsuleCellulose shell
The capsule uses hydroxypropylmethylcellulose, with vegetable-source magnesium stearate and silicon dioxide.
L-Tyrosine Amino Acid Capsules
Inside the formula
Hydroxypropylmethylcellulose capsule shell
One capsule daily
Ingredients
L-tyrosine, magnesium stearate (vegetable source), silicon dioxide; capsule shell: hydroxypropylmethylcellulose.
How to use
Directions & suitability
Take 1 capsule daily and swallow with water. Do not exceed the stated dosage unless advised by a healthcare professional.
Do not exceed the stated dose. Food supplements should not replace a varied, balanced diet and a healthy lifestyle. Keep out of the reach and sight of children. Store in a cool, dry place.
Ingredient research
What tyrosine studies can tell us
Most tyrosine research looks at short-term performance in specific laboratory conditions. A 1994 study involved eight male volunteers exposed to cold and used a single L-tyrosine dose of 150mg per kilogram of body weight. That setting and dose are very different from an everyday capsule routine. Read the cold-exposure study.
Results are not uniform: a 2019 placebo-controlled study in 70 healthy volunteers used 2g of tyrosine and found worse cognitive flexibility under demanding test conditions. A broader review found too little evidence for confident recommendations. These findings do not establish a mental-performance or stress benefit for Eureka L-Tyrosine. Follow the product label, not a study dose. Read the 2019 trial · Read the evidence review.
Choose the pack for you
| Pack | Price | Availability |
|---|---|---|
| 60 | £12.00 | In stock |
| 90 | £15.00 | In stock |
60-day money-back guarantee
If you are not satisfied, contact Eureka within 60 days of receiving your order to request your money back. Opened products are included.
Returns policy →Your questions, answered
How do I use this product?+
Take 1 capsule daily and swallow with water. Do not exceed the stated dosage unless advised by a healthcare professional.
Do not exceed the stated dose. Food supplements should not replace a varied, balanced diet and a healthy lifestyle. Keep out of the reach and sight of children. Store in a cool, dry place.
What ingredients does it contain?+
L-tyrosine, magnesium stearate (vegetable source), silicon dioxide; capsule shell: hydroxypropylmethylcellulose.
What if it is not right for me?+
If you are not satisfied, contact Eureka within 60 days of receiving your order to request your money back. Opened products are included.
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