L-Tyrosine is an amino acid people commonly take for mental alertness and cognitive performance under stress - for example, during sleep loss, demanding work, or other short-term stressors. It is also a precursor used by the body to make catecholamine neurotransmitters (like dopamine and norepinephrine) and thyroid hormones.
When you shop for L-Tyrosine, the big surprise is usually how much the form changes the real cost. Capsules are convenient and consistent, but powders can be dramatically cheaper - and they come with a measurement tradeoff. The tables below use 1000 mg/day as a consistent comparison point so different products can be compared on the same monthly-cost basis.
Prices as of June 3, 2026. Prices update daily; this page updates monthly. For current prices and full interactive filters, see the L-Tyrosine compare page.
| Rank | Brand | Product | Form | Cost per month | Price |
|---|---|---|---|---|---|
| 1 | Best Naturals | Best Naturals L-Tyrosine Pure Powder 1 Pound | Powder | $0.99 | $14.99 |
| 2 | BulkSupplements | BulkSupplements.com L-Tyrosine Powder - Sports Nutrition, A… | Powder | $1.02 | $33.97 |
| 3 | Nutricost | Nutricost L-Tyrosine Powder 250 Grams - Pure L-Tyrosine Pow… | Powder | $2.27 | $18.95 |
| Rank | Brand | Product | Form | Cost per month | Price |
|---|---|---|---|---|---|
| 1 | Source Naturals | Source Naturals L-Tyrosine 500mg Free Form Amino Acid - 100… | Tablets | $1.50 | $7.49 |
| 2 | NGU Next Gen U | L Tyrosine - 500 mg, 180 Vegan Capsules - Health Food & Die… | Capsules | $3.33 | $9.99 |
| 3 | Carlyle | Carlyle L Tyrosine Capsules 1000mg | 300 Count | Therapeu… | Capsules | $3.80 | $18.99 |
| 4 | Horbäach | Horbäach L-Tyrosine 1000mg | 250 Capsules | Amino Acid Su… | Capsules | $4.08 | $16.99 |
| 5 | BESTVITE | BESTVITE L-Tyrosine 500mg (240 Capsules) - No Stearates - N… | Capsules | $4.25 | $16.99 |
See all L-Tyrosine products with full filter and sort options ->
1) Decide on form first: powder savings vs capsule convenience. L-Tyrosine is often sold as simple capsules (commonly 500 mg per capsule) and as bulk powder. If you want the lowest cost, powder tends to win - but only if you can measure a consistent serving. If you want the easiest routine, capsules are usually the most practical even when they cost more.
2) Do the daily-dose math from Supplement Facts (not the front label). Many capsule products provide 500 mg per capsule, which means two capsules per day to reach 1000 mg/day. Some options use 750 mg capsules, which can change how many you take and how long the bottle lasts. The rankings account for servings per container, but you should still confirm the serving size and capsule count match what you are willing to take daily.
3) Make sure you are buying plain L-Tyrosine (not a different form or a "blend"). If your goal is straightforward L-Tyrosine value, prioritize products where Supplement Facts lists a clean line like "L-Tyrosine (Free-Form)" with a clear milligram amount. Be cautious with products marketed as "focus," "dopamine," "thyroid," or "energy" formulas - those often add other amino acids, herbs, iodine/selenium, or stimulants that make price comparisons misleading.
4) For powder, watch for serving instructions that don't match the stated milligrams. With powders, you may see a serving size listed as a fraction of a teaspoon with an "approx." weight (for example, a teaspoon fraction that is "about 1000 mg"). That can be fine - but some labels also give "suggested use" directions with a different scoop volume than the Supplement Facts serving. If the spoon measurement is inconsistent, treat the powder as harder to dose accurately unless you plan to use a scale.
5) Prefer minimal ingredient lists unless you have a reason to add extras. Many good L-Tyrosine products are single-ingredient. When a label clearly states no other ingredients (or only a basic capsule shell), it is easier to compare value and easier to understand what you are taking. If you choose a flavored chewable, gummy, or sweetened powder, the cost may rise and the daily routine may change.
6) Use quality signals as tie-breakers, not as the main decision. After you have a clear L-Tyrosine amount per day, look for practical confidence signals like GMP statements, third-party testing claims, allergen notes, and clear lot/quality information from the brand. These can help separate two similarly priced options, but they are not a substitute for clear dose math and a form you can stick with.
7) Keep expectations realistic: evidence is strongest for short-term stress performance. L-Tyrosine has human research suggesting benefits for acute performance under stressors (sleep deprivation, cold exposure, demanding tasks). Evidence is weaker for everyday "focus" or long-term mood support in people who are not under significant stress. If you are buying it as a daily nootropic, it is worth being honest about that gap - and considering whether an occasional-use approach fits your goals.
Evidence for L-Tyrosine is moderate. Human evidence is strongest for short-term cognitive performance under stress, while results are less consistent for general focus, mood, ADHD symptoms, or long-term use in unstressed people. The 1000 mg/day benchmark here is for price comparison, not a claim that 1000 mg/day is the best dose for everyone; typical use often falls around 500-2000 mg/day depending on goals and tolerance.
L-Tyrosine is generally well tolerated, but it can cause side effects such as GI upset, headache, or changes in sleep in some people. Because tyrosine is related to thyroid hormone production, people with thyroid conditions - or anyone taking thyroid medication - should be cautious and consider checking with a clinician. If you are pregnant or breastfeeding, managing a medical condition, or taking prescription medications, consider professional guidance before starting.