Lysine 500 mg

Lysine 500 mg

Thorne4.8 (6,386 ratings)
Format:Capsule Quantity: 60 Capsule(s) · 60 servings
Goals
$15.00 $0.25 per serving
iHerbLowest$15.00Pure Formulas$15.00Amazon$15.00Vitacost$15.00

Product analysis

68 out of 100

Lysine 500 mg offers a simple source of an amino acid used in hair protein, with a clearly stated serving that is easy to compare. Its relevance to hair is mainly nutritional, and an independent hair-growth benefit remains uncertain.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality40

The lysine form is clearly identified. A specific quality advantage over other preparations is not established.

Ingredient Transparency100

Both the lysine amount and form are clearly stated. That makes the serving straightforward to compare with other lysine supplements.

Value For Money60

Lysine provides moderate value for the amount supplied. A single ingredient makes it straightforward to compare the cost of the nutrient you want.

Customer Satisfaction91

Customer ratings are strongly positive across thousands of reviews. The broad satisfaction picture does not prove hair benefits.

Product Focus71

One lysine ingredient keeps the formula focused. Its connection to hair reflects protein nutrition, with no established independent hair-growth benefit for adults generally.

Format
Capsule
Container
60 Capsule(s)
Per serving
$0.25
Customer rating
4.8 · 6,386 ratings
Report analysis

Goals

Hair Health
Hair Health
Impact
High effect
B+ Ingredient FitF PathwaysB+ EvidenceA+ Formulation Logic
Lysine · 500 mg
Study evidence
Lysine Supportive 1 study

Ingredients

IngredientAmount per servingScore
L-Lysine (L-Lysine Monohydrochloride)
 500 mg 77
Gluten Free Adults 18–50
Report overview
Lysine (L-Lysine Monohydrochloride) · 500 mg OverallScore77
B- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyC Value
Each serving lists 500 mg of lysine, with a moderately high cost per amount of lysine. The source is L-Lysine Hydrochloride. No purity grade, vegan sourcing, or GMP claim is available.
How this ingredient is rated

Active Ingredient Quality & Bioavailability72

The source is L-Lysine Hydrochloride. No purity grade, vegan sourcing, or GMP claim is available.
Lysine Chemical Form & Sourcing
The source is L-Lysine Hydrochloride.
Purity and Grade Signals
No purity grade, vegan sourcing, or GMP claim is available.

Dose, Safety & Label Transparency90

Each serving lists 500 mg of lysine. The formula includes common added processing ingredients.
Lysine Dose by Declared Basis
The serving lists 500 mg of lysine.
Clean Label & Additives
The formula includes common added processing ingredients.

Value60

The cost per amount of lysine is moderately high.
Price Per 1000mg of Lysine
The cost per amount of lysine is moderately high.
View ingredientView products
86 Performance

L-Lysine 500 mg

Carlson
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.
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.
85 Performance

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. The provided quality and goal assessments are stronger than 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. 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 Powder 960 mg

Carlson
A clearly stated L-lysine hydrochloride dose at 960 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

Solgar
A clearly stated L-lysine hydrochloride dose at 1000 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.
84 Value

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. Strong provided quality and goal assessments combine with favorable serving economics, improving the balance of formulation and value; the small calcium addition makes the formula slightly less minimal.
85 Value

L-Lysine Pharmaceutical Grade

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.
Report alternatives

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