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L-Lysine 500 mg

Carlson
4.8
★ ★ ★ ★ ★
(197 ratings)
Lysine 500 mg
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Score86
500 mg of l-lysine anchors a strong single-ingredient option with strong value. Its main trade-off is the high dose, which may be either convenient or restrictive depending on the intended routine.
How scoring works
Quantity:300 Capsule(s) • (300 servings)
Goals:
Hair Health

Score 86

500 mg of l-lysine anchors a strong single-ingredient option with strong value. Its main trade-off is the high dose, which may be either convenient or restrictive depending on the intended routine.
How scoring works

Also available as

1 option
100 servings Lysine 500 mg • 100 Capsule(s) • 100 servings $10.63 ($0.10 per serving)
$16.10($0.05 per serving)
iHerb
$ 16.10
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Analysis

The 500 mg serving provides l-lysine as the main active in capsule(s). The amount gives the product a high-dose profile without adding unrelated actives.

The amount is stated, but the supplied information leaves some formulation detail unspecified. Value is favorable for the supplied amount and serving count, and the focused formula makes comparison with similar products easier.

The strongest practical fit is hair health, with related assessments also supporting lysine-focused use. The main decision is whether 500 mg and the capsule(s) format match the user's preferred routine and budget.

Who is it for
  • Adults seeking a high-dose Lysine supplement
  • People who prefer capsule(s) for l-lysine
  • Users focused on hair health
Best for
  • Hair Health support

Pros

  • Clearly stated 500 mg amount
  • Focused l-lysine formula
  • Serving amount is easy to identify
  • Favorable value for the supplied quantity

Cons

  • 500 mg offers little flexibility for lower-dose use
  • Capsule(s) may not suit every user's format preference
  • Single-active formula provides no complementary nutrients

Nutrient quality

86 Highest impact

Ingredient forms and dosing are well aligned with the intended use. The focused formula avoids obvious excesses and low-value additions.

Ingredient transparency

86 Highest impact

Most active amounts are disclosed and core ingredients are identifiable. Missing serving, blend, or excipient details keep the label from being fully transparent.

Customer satisfaction

71 High impact

The aggregate rating is strong and supported by a useful volume of ratings. Specific feedback was not supplied, so recurring complaints and purpose fit remain uncertain.

Value for money

99 Highest impact

Formula quality and serving efficiency provide excellent practical value. Focused ingredients and strong category competitiveness reinforce that advantage.

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Goals

Hair Health
Hair Health
Impact
High effect
C Goal FitB+ Strength of SupportD- CoverageA+ Formula Quality
Lysine · 500 mg

Lysine may support hair indirectly through protein building and iron absorption, especially when dietary intake is inadequate. Hair-specific human evidence is limited and does not establish lysine alone as a broad treatment for shedding.

The 500 mg amount is practical and the monohydrochloride form is clearly identified. The focused capsule avoids padding, but it does not address hormonal, scalp, or antioxidant causes of hair loss.

Study evidence
Lysine Supportive 1 study

Ingredients

IngredientAmount per serving
L-Lysine (L-Lysine Monohydrochloride)
 500 mg
Gluten Free Adults 18–50
Report overview
Lysine (L-Lysine Monohydrochloride) · 500 mg OverallScore89
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The stable monohydrochloride form and target-range dose make the supplement well aligned with daily lysine use. One capsule supplies the effective serving, and no artificial additives are listed. The large container delivers a very low cost per active amount, though no pharmaceutical, vegan, fermentation, or GMP quality claim is provided.

View ingredientView products
Loading alternative details
86 Performance

L-Lysine Powder 960 mg

Carlson
A clearly stated L-lysine hydrochloride dose at 960 mg provides a focused source of this essential amino acid. The provided quality and goal assessments are stronger than the original, although the provided data do not include independent testing or certification details.
86 Performance

L-Lysine 1000 mg

Solgar
A clearly stated L-lysine hydrochloride dose at 1000 mg provides a focused source of this essential amino acid. The provided quality and goal assessments are stronger than the original, although the provided data do not include independent testing or certification details.
86 Performance

L-Lysine 500 mg

Source Naturals
A clearly stated L-lysine hydrochloride dose at 500 mg provides a focused source of this essential amino acid. The provided quality and goal assessments are stronger than the original, although the provided data do not include independent testing or certification details.
84 Budget

L-Lysine 600 mg

21st Century
A clearly stated L-lysine hydrochloride dose at 600 mg provides a focused source of this essential amino acid. Its lower serving cost improves routine value compared with the original, although the small calcium addition makes the formula slightly less minimal.
85 Budget

L-Lysine

NOW
A clearly stated L-lysine hydrochloride dose at 435 mg provides a focused source of this essential amino acid. Its lower serving cost improves routine value compared with the original, although the provided data do not include independent testing or certification details.
86 Budget

L-Lysine 1000 mg

AN Amazing Nutrition Amazing Formulas
A clearly stated L-lysine hydrochloride dose at 1000 mg provides a focused source of this essential amino acid. No eligible candidate with a lower serving cost was available for this slot, so it is included as the closest practical value option; the provided data do not include independent testing or certification details.
85 Value

Free-Form Lysine 500 mg

Swanson
A clearly stated L-lysine hydrochloride dose at 500 mg provides a focused source of this essential amino acid. Strong provided quality and goal assessments combine with favorable serving economics, improving the balance of formulation and value; the provided data do not include independent testing or certification details.
86 Value

L-Lysine 500 mg

NOW
A clearly stated L-lysine hydrochloride dose at 500 mg provides a focused source of this essential amino acid. Strong provided quality and goal assessments combine with favorable serving economics, improving the balance of formulation and value; the provided data do not include independent testing or certification details.
83 Value

L-Lysine 500 mg

Solaray
A clearly stated L-lysine hydrochloride dose at 500 mg provides a focused source of this essential amino acid. Strong provided quality and goal assessments combine with favorable serving economics, improving the balance of formulation and value; the provided data do not include independent testing or certification details.
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Causes of hair loss and the developments in hair rejuvenation.
    Rushton DH; Norris MJ; Dover R; Busuttil N · International journal of cosmetic science · 2010
    Narrative reviewHair Health forLysine