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L-Lysine 500 mg

Solaray
4.8
★ ★ ★ ★ ★
(3535 ratings)
Lysine 500 mg
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Score81
A clearly dosed lysine-only option that suits targeted amino-acid use. The 500 mg amount is moderate, while the formula offers little support beyond lysine.
How scoring works
Quantity:120 VegCap(s) • (60 servings)
Goals:
Hair Health

Score 81

A clearly dosed lysine-only option that suits targeted amino-acid use. The 500 mg amount is moderate, while the formula offers little support beyond lysine.
How scoring works
$12.18($0.20 per serving)
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$ 12.69
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$ 12.69
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$ 12.18
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Analysis

Lysine contributes to structural proteins and may be most useful for hair when protein intake or iron status is inadequate. The 500 mg serving provides the lower edge of a useful targeted range in a stable, commonly used form.

The listed serving works out to two capsules, adding a little more daily effort than a one-unit serving. The lysine form and amount are disclosed, but no higher purity grade, source, or independent verification is provided.

The single-ingredient design does not cover mineral, antioxidant, scalp, or hormone-related contributors to hair concerns. It fits targeted supplementation better than someone seeking a complete hair or general wellness formula.

Who is it for
  • Adults seeking a focused lysine supplement
  • People who prefer a premeasured tablet or capsule
  • Users addressing a possible dietary lysine shortfall
Best for
  • Targeted lysine intake
  • Nutritional support when protein or iron status may be inadequate
  • Simple daily supplementation

Pros

  • Clearly identifies 500 mg of lysine per serving
  • Uses l-lysine hydrochloride
  • Capsule format avoids measuring powder
  • Focused formula avoids unrelated active ingredients

Cons

  • The amount sits at the lower end of focused supplementation
  • No purity grade or sourcing details are supplied
  • Full serving requires two capsules
  • Hair relevance is strongest when a nutritional shortfall is present

Warnings

  • The 500 mg lysine serving may cause stomach discomfort in sensitive users, especially if taken without food.
  • People with significant kidney disease should discuss standalone amino-acid supplementation with their clinician before use.
  • Persistent or sudden hair shedding can have causes that a lysine-only supplement does not address.

Nutrient quality

91 Highest impact

L-lysine hydrochloride provides a stable and well-absorbed amino-acid form. The 500 mg amount is meaningful for focused lysine supplementation.

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Ingredient transparency

82 Highest impact

The lysine form and amount are clearly stated without a proprietary blend. Missing excipient details and complete use directions leave the supplied label information incomplete.

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Customer satisfaction

70 High impact

The supplied aggregate satisfaction average is favorable, while the response volume determines how stable it appears. No comment-level evidence is available to assess repeated complaints or confirm intended-use experiences.

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Value for money

78 High impact

The formula is simple, but serving economics are only moderately competitive. The supplied active formula is focused and shows no low-value padding.

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Goals

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

L-lysine supplies a structural amino acid and may support iron utilization relevant to hair shedding. Its benefit is most plausible when dietary protein or iron status is inadequate.

The hydrochloride form and exact amount are clearly disclosed. The focused formula provides meaningful depth without unrelated ingredients.

Study evidence
Lysine Supportive 1 study

Ingredients

IngredientAmount per serving
L-Lysine (L-Lysine Hydrochloride)
500 mg
Adults 18–50
Report overview
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyC Value

L-Lysine hydrochloride is a stable, well-absorbed form, and the 500 mg amount meets the useful dose range. A single capsule keeps daily use convenient, while the provided ingredient list shows no unnecessary additives. The main limitation is the absence of an explicit purity, grade, or sourcing claim, and cost efficiency is moderate rather than exceptional.

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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