L-TYROSINE -🌱MARCH SPRING SALE - 20%-OFF *Nutrient for horses - natural support for energy and dopamine balance
L-Tyrosine is thought to play a key role in supporting dopamine production, which may offer a natural boost for physical energy, mental focus, and stress resilience.
May be suitable for horses needing extra support, particularly those facing the challenges of Cushing’s/PPID.
Why choose L-Tyrosine?
- May provide a targeted boost for horses needing extra energy and focus.
- May h elp address the stresses and fatigue linked to metabolic challenges.
- Trusted for its role in dopamine regulation and overall wellbeing.
How it can help your horse
🌿 Dopamine production
May supports natural dopamine levels for improved mood and vitality.
🌿 Energy boost
May helps counter fatigue during periods of physical or mental strain.
🌿 Stress resilience
May contribute to maintaining calmness and focus under pressure.
Important Note
Do not feed to horses on Prascend as it may over-stimulate dopamine levels.
For the latest insights, see our A-Z Cushing's/PPID
page in the Advice Centre above.
Composition & Feed Guide
Composition
100% pure L Tyrosine powder
Feed
2g/100kg bodyweight per day to start with, i.e. 10g/day for a 500kg horse.
- 1-level 15ml scoop = 15g
- Human grade.
- Keep tightly sealed and in a cool place away from moisture and direct sunlight.
Clinical Considerations
L-Tyrosine is a naturally occurring amino acid involved in the body’s production of dopamine and other neurotransmitters. It is generally well tolerated by horses and is most suited to those needing gentle nutritional support for steadier energy and focus.
Advisories
- Introduce gradually, as with all supplements, especially for older horses or those with metabolic challenges.
- L-Tyrosine may support natural dopamine pathways. For horses with PPID who are not medicated, introduce slowly and monitor for changes in energy, behaviour, or sensitivity.
- If your horse is receiving long-term prescription medication (other than Prascend), it’s sensible to check with your vet before adding Tyrosine, simply to ensure the full routine works comfortably together.
- Avoid combining Tyrosine with multiple other dopamine-supportive herbs unless guided by your practitioner, as you may achieve the same effect with fewer inputs.
Contraindications
- Do not feed to horses on Prascend (Pergolide). Tyrosine may overstimulate dopamine pathways when combined with dopamine-acting medication.
- Not recommended for pregnant or nursing mares, as safety data for supplemental amino acids in these stages are limited.
- Avoid in horses with known or suspected hyperthyroid activity, as Tyrosine is a precursor in thyroid hormone pathways (rare but sensible to include).
1.4.25 - Important Note
L-Tyrosine removed as an amino acid from GB Feed Additives Register
Following the recent issues relating to the updated GB Register for feed additives on the 1st of April 2025; the Agricultural Industries Confederation (AIC), British Association of Feed Supplement and Additive Manufacturers (BAFSAM), British Equestrian Trade Association (BETA) and UK Petfood have held a recent meeting with Food Standards Agency (FSA), who have subsequently provided a summary outlining the status of a number of feed additives.
AIC | GB Feed Additives Register Update to Feed Industry -
Supplied by FSA (23 June 2025)
One important change which will affect some equine feeds is the removal of L-Tyrosine as an amino acid from the GB Feed Additives Register. It is permitted for use but only as a flavouring compound .
L-Tyrosine has also been removed from the EU Feed Additives Register with a withdrawal date of 12th May 2026.
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