Tyrosine
N-Acetyl L-Tyrosine
MENTAL SHARPNESS UNDER PRESSURE
L-Tyrosine is a precursor to dopamine, norepinephrine, and thyroid hormones. It supports cognitive performance during stress, mental fatigue, and sleep deprivation — making it a favorite of students, professionals, and military personnel alike.
30-day supply
Key Benefits
Supports dopamine and norepinephrine production
Promotes mental focus under stress
Supports thyroid hormone synthesis
May improve cognitive performance during fatigue
Supports These Goals
Why you'll love it
When you're under stress — whether it's a demanding deadline, sleep deprivation, or intense physical exertion — your brain burns through its catecholamine reserves (dopamine and norepinephrine) at an accelerated rate. As these neurotransmitters deplete, your focus wavers, motivation drops, and mental performance suffers.
L-Tyrosine provides the raw material to replenish those reserves. As the direct precursor to dopamine and norepinephrine, tyrosine supplementation has been shown in military and academic research to maintain cognitive performance under conditions that would normally degrade it: cold stress, sleep deprivation, extended multitasking, and high-pressure environments.
The U.S. military has studied tyrosine extensively and found it reliably improves working memory, cognitive flexibility, and mood during stressful operations. It's also a precursor to thyroid hormones (T3 and T4), which regulate metabolism and energy. If your brain needs to perform at its best when conditions are at their worst, tyrosine is your backstop.
Clinical Evidence
Our recommendations are grounded in published clinical research. Here are key studies supporting the benefits of Tyrosine.
Tyrosine boosts memory and focus during intense military training
Tyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training course
1999
Study titles shown are simplified summaries of the original research for readability. Original titles are shown in italics below each heading. All studies cited are from peer-reviewed journals indexed in PubMed. Links open in a new tab to the original source. These studies are provided for informational purposes and do not constitute medical advice.
How much do I really need?
Take one 500mg capsule daily, ideally in the morning or early afternoon on an empty stomach for best absorption. Tyrosine competes with other amino acids for transport across the blood-brain barrier, so taking it away from protein-rich meals improves efficacy.
Safety & Transparency
Full transparency — here's exactly what's in every capsule, verified by our manufacturer.
Third-Party Tested
Every batch is independently tested by ISO-17025 accredited labs for purity, potency, and contaminants.
Doctor Formulated
Designed by healthcare professionals using evidence-based research and clinical expertise.
cGMP Certified
Manufactured in cGMP & UL certified, FDA-registered facilities with a flawless inspection record.
Important Information
Contraindications:
- •thyroid medication
- •maoi medication
If you take thyroid medication or MAO inhibitors, consult your healthcare provider before use.
As with any natural health product, you should consult your healthcare practitioner on the use of this product. Store product in a cool and dry place. Keep out of reach of children. If you experience an adverse event or allergic reaction, discontinue use immediately and contact a healthcare professional.
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