{
  "dataset": "l-tyrosine-cost-by-brand",
  "title": "L-Tyrosine Supplements Compared — cost per gram of tyrosine, and servings needed to reach a studied dose",
  "sourcePage": "https://verifiedsupplementdata.com/l-tyrosine/best-overall/",
  "license": "CC-BY-4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "Verified Supplement Data (2026), L-Tyrosine Cost Comparison",
  "dateModified": "2026-07-16",
  "methodology": "Human trials showing a cognitive benefit used PLAIN L-tyrosine at ~2 g up to 100-150 mg/kg (about 7-13 g), taken 30-120 minutes BEFORE an acute stressor (cold, sleep loss, high cognitive load); benefit appears only when brain catecholamines are temporarily depleted, not at rest (Jongkees 2015, PMID 26424423). costPerGramTyrosine = costPerServing / (labeled mg / 1000) for plain L-tyrosine; it is null for N-acetyl-L-tyrosine (NALT), which is poorly deacetylated to free tyrosine in humans (Magnusson 1989, PMID 2507878: 56% excreted unchanged even by IV) and so delivers less usable tyrosine per mg. servingsToReach2g = how many labeled servings reach the 2 g low end of the studied dose. \"verdict\": plain-powder (cheapest per gram, scoops to a real dose), plain-capsule (need several to reach a studied dose), nalt (poorly converted). Powders are dramatically cheaper per gram of tyrosine than capsules, and a single 500 mg capsule is roughly one-quarter of the LOW studied dose.",
  "headline": {
    "productsCompared": 11,
    "plainPowders": 2,
    "naltProducts": 2,
    "studiedDoseLowG": 2,
    "cheapestPerGramTyrosine": 0.05,
    "cheapestPerGramTyrosineBrand": "Nutricost",
    "note": "Powders cost roughly $0.05-0.08 per gram of tyrosine versus $0.14-0.38 for 500 mg capsules, and a 500 mg capsule is only about one-quarter of the 2 g low end of the studied dose. NALT is priced separately because it is poorly converted to usable tyrosine."
  },
  "columns": [
    "brand",
    "product",
    "slug",
    "form",
    "verdict",
    "mgPerServing",
    "servings",
    "price",
    "costPerServing",
    "costPerGramTyrosine",
    "servingsToReach2g",
    "thirdParty"
  ],
  "units": {
    "mgPerServing": "mg per serving (L-tyrosine or NALT)",
    "price": "USD",
    "costPerServing": "USD/serving",
    "costPerGramTyrosine": "USD per gram of tyrosine",
    "servingsToReach2g": "servings to reach 2 g"
  },
  "citations": [
    {
      "claim": "Tyrosine enhances cognition only when dopamine/norepinephrine is temporarily depleted (acute stress), not at rest.",
      "source": "Jongkees BJ, et al. 2015, J Psychiatr Res",
      "pmid": "26424423"
    },
    {
      "claim": "Tyrosine (150 mg/kg) reversed a cold-induced working-memory deficit; no effect at 22C (no stress).",
      "source": "Shurtleff D, et al. 1994, Pharmacol Biochem Behav",
      "pmid": "8029265"
    },
    {
      "claim": "Tyrosine (~10 g/day) improved memory and tracking in cadets on a combat course; no mood effect.",
      "source": "Deijen JB, et al. 1999, Brain Res Bull",
      "pmid": "10230711"
    },
    {
      "claim": "N-acetyl-L-tyrosine is poorly converted to free tyrosine: 56% excreted unchanged, plasma tyrosine rose only ~25% (IV).",
      "source": "Magnusson I, et al. 1989, Metabolism",
      "pmid": "2507878"
    }
  ],
  "products": [
    {
      "brand": "Nutricost",
      "product": "L-Tyrosine Powder, 1,000 mg per serving (500 g)",
      "slug": "nutricost-tyrosine-powder",
      "form": "Powder",
      "mgPerServing": 1000,
      "servings": 500,
      "price": 26.95,
      "costPerServing": 0.05,
      "costPerGramTyrosine": 0.05,
      "servingsToReach2g": 2,
      "verdict": "plain-powder",
      "thirdParty": "None (third-party lab tested)"
    },
    {
      "brand": "BulkSupplements",
      "product": "L-Tyrosine Powder, 500 mg per serving (250 g)",
      "slug": "bulksupplements-tyrosine-powder",
      "form": "Powder",
      "mgPerServing": 500,
      "servings": 500,
      "price": 19.97,
      "costPerServing": 0.04,
      "costPerGramTyrosine": 0.08,
      "servingsToReach2g": 4,
      "verdict": "plain-powder",
      "thirdParty": "None (third-party lab tested)"
    },
    {
      "brand": "Horbaach",
      "product": "L-Tyrosine 1,000 mg (250 Capsules)",
      "slug": "horbaach-tyrosine-1000",
      "form": "Capsule",
      "mgPerServing": 1000,
      "servings": 125,
      "price": 16.99,
      "costPerServing": 0.14,
      "costPerGramTyrosine": 0.14,
      "servingsToReach2g": 2,
      "verdict": "plain-capsule",
      "thirdParty": "None"
    },
    {
      "brand": "Nutricost",
      "product": "L-Tyrosine 500 mg (180 Capsules)",
      "slug": "nutricost-tyrosine-500",
      "form": "Capsule",
      "mgPerServing": 500,
      "servings": 180,
      "price": 14.95,
      "costPerServing": 0.08,
      "costPerGramTyrosine": 0.16,
      "servingsToReach2g": 4,
      "verdict": "plain-capsule",
      "thirdParty": "None (ISO-lab tested)"
    },
    {
      "brand": "Double Wood",
      "product": "L-Tyrosine 1,000 mg per serving (120 Capsules)",
      "slug": "double-wood-tyrosine-1000",
      "form": "Capsule",
      "mgPerServing": 1000,
      "servings": 60,
      "price": 9.95,
      "costPerServing": 0.17,
      "costPerGramTyrosine": 0.17,
      "servingsToReach2g": 2,
      "verdict": "plain-capsule",
      "thirdParty": "None (third-party tested)"
    },
    {
      "brand": "NOW Foods",
      "product": "NOW L-Tyrosine 500 mg (120 Veg Capsules)",
      "slug": "now-tyrosine-500",
      "form": "Capsule",
      "mgPerServing": 500,
      "servings": 120,
      "price": 11.01,
      "costPerServing": 0.09,
      "costPerGramTyrosine": 0.18,
      "servingsToReach2g": 4,
      "verdict": "plain-capsule",
      "thirdParty": "None (cGMP, UL-tested)"
    },
    {
      "brand": "NOW Foods",
      "product": "NOW L-Tyrosine 750 mg (90 Veg Capsules)",
      "slug": "now-tyrosine-750",
      "form": "Capsule",
      "mgPerServing": 750,
      "servings": 90,
      "price": 12.24,
      "costPerServing": 0.14,
      "costPerGramTyrosine": 0.19,
      "servingsToReach2g": 3,
      "verdict": "plain-capsule",
      "thirdParty": "None (cGMP)"
    },
    {
      "brand": "Jarrow Formulas",
      "product": "L-Tyrosine 500 mg (100 Capsules)",
      "slug": "jarrow-tyrosine-500",
      "form": "Capsule",
      "mgPerServing": 500,
      "servings": 100,
      "price": 14.67,
      "costPerServing": 0.15,
      "costPerGramTyrosine": 0.3,
      "servingsToReach2g": 4,
      "verdict": "plain-capsule",
      "thirdParty": "None"
    },
    {
      "brand": "Solaray",
      "product": "L-Tyrosine 500 mg (100 Capsules)",
      "slug": "solaray-tyrosine-500",
      "form": "Capsule",
      "mgPerServing": 500,
      "servings": 100,
      "price": 19.59,
      "costPerServing": 0.2,
      "costPerGramTyrosine": 0.4,
      "servingsToReach2g": 4,
      "verdict": "plain-capsule",
      "thirdParty": "None"
    },
    {
      "brand": "BulkSupplements",
      "product": "N-Acetyl L-Tyrosine (NALT) Powder, 400 mg per serving (500 g)",
      "slug": "bulksupplements-nalt-powder",
      "form": "Powder",
      "mgPerServing": 400,
      "servings": 1250,
      "price": 30.97,
      "costPerServing": 0.02,
      "costPerGramTyrosine": null,
      "servingsToReach2g": 5,
      "verdict": "nalt",
      "thirdParty": "None (third-party lab tested)"
    },
    {
      "brand": "Nutricost",
      "product": "N-Acetyl L-Tyrosine (NALT) 350 mg (120 Capsules)",
      "slug": "nutricost-nalt-350",
      "form": "Capsule",
      "mgPerServing": 350,
      "servings": 120,
      "price": 12.95,
      "costPerServing": 0.11,
      "costPerGramTyrosine": null,
      "servingsToReach2g": 6,
      "verdict": "nalt",
      "thirdParty": "None"
    }
  ]
}