NOW Foods L-Tyrosine 500 mg (120 Capsules) — (Pakistan Market)

A Specific, Named Caution Worth Reading Carefully

NOW Foods' own label is unusually specific here, and it's worth leading with rather than burying: persons with thyroid disease (hyperthyroidism), melanoma, or those taking MAO inhibitors or other mood-altering medications should seek the advice of a physician before consuming this product. This isn't generic boilerplate — it's directly tied to how tyrosine functions in the body, and we want to explain why each of these specifically matters rather than just listing them.

L-Tyrosine is the direct biochemical precursor your body uses to produce thyroid hormone, which is why anyone with hyperthyroidism (an already overactive thyroid) needs medical guidance before adding more of the raw material their body uses to make thyroid hormone. Tyrosine is also the precursor used to produce melanin, the pigment relevant to melanin-producing cells — which is why melanoma is specifically named. And because tyrosine feeds into the production of dopamine, norepinephrine, and epinephrine (adrenaline), combining it with MAO inhibitors — a class of medication that affects how these same neurotransmitters are broken down — can be genuinely risky and should never be done without your prescribing doctor's explicit knowledge and approval.

If any of these three situations applies to you, please don't use this product without speaking to your doctor first.

What L-Tyrosine Actually Does

Beyond these specific cautions, tyrosine plays a broadly recognized role: it's the amino acid your body converts into dopamine, norepinephrine, and epinephrine — the key players in your body's response to acute stress, alertness, and mood regulation — and it's also essential for normal thyroid gland function generally. This is why L-Tyrosine has become popular among people looking for mental alertness support during demanding periods, and why it's been studied in contexts involving sleep deprivation and acute physical or cognitive stress.

This NOW Foods version uses pharmaceutical-grade (USP) L-Tyrosine in free-form (meaning it's ready for the body to use directly, without requiring digestive breakdown first).

A Practical Tip on Timing

The label specifically recommends taking this between meals rather than with food. This reflects standard practice for free-form amino acids generally, since taking them on a relatively empty stomach can support more efficient absorption compared to taking them alongside a full meal's worth of other proteins competing for the same absorption pathways.

A Note on Capsule Material

We found a genuine formulation difference across sources for this exact product: NOW Foods' own current website, along with several major retailers, lists the capsule as Hypromellose (a vegetarian, cellulose-based material) — but some other retail listings still describe it as bovine gelatin (BSE-free). This likely reflects a formulation update over time, with older gelatin-capsule stock still listed in some places. We'd recommend checking your specific bottle's current label to confirm which capsule material you're receiving.

Ingredient Breakdown

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients. Produced in a GMP facility that also processes other ingredients containing these allergens.

Dosage Chart