Free-Form Lysine 500 mg

Free-Form Lysine 500 mg

Swanson4.8 (1,497 ratings)
Format:Capsule Quantity: 300 Capsule(s) · 300 servings
Goals
$18.19 $0.06 per serving
iHerb$18.19

Product analysis

75 out of 100

Free-Form Lysine 500 mg supplies an amino acid relevant to meeting protein needs, with good value for its lysine content. Hair-related findings concern specific combinations and do not establish a routine benefit from lysine alone.

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

Nutrient Quality40

The lysine form is clearly identified, but its quality advantage remains uncertain. Naming the form alone does not establish better absorption.

Ingredient Transparency100

The lysine amount and form are clearly stated. That makes it easy to compare the quantity and type with alternatives.

Value For Money100

The lysine content offers very good value at the full serving cost. The favorable cost comparison concerns the amount provided rather than a proven hair benefit.

Customer Satisfaction85

Customer ratings are very positive across a substantial review base. The many reviews provide a broad view of satisfaction without establishing hair benefits.

Product Focus71

The single-ingredient formula has a clear nutritional focus. Its hair-related evidence concerns selected combination regimens, so an independent benefit remains uncertain.

Format
Capsule
Container
300 Capsule(s)
Per serving
$0.06
Customer rating
4.8 · 1,497 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 Hydrochloride)
 500 mg 85
Adults 18–50
Report overview
Lysine (L-Lysine Hydrochloride) · 500 mg OverallScore85
B- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value
Free-Form Lysine 500 mg provides 500 mg of lysine per serving, with a low cost for the lysine amount. The source is L-Lysine Hydrochloride. No grade, vegan sourcing or GMP claim is specified in the available details.
How this ingredient is rated

Active Ingredient Quality & Bioavailability72

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

Dose, Safety & Label Transparency90

Each serving lists 500 mg of lysine. Common processing ingredients are indicated, but the specific ingredients are not named in the available details.
Lysine Dose by Declared Basis
Each serving lists 500 mg of lysine.
Clean Label & Additives
Common processing ingredients are indicated, but the specific ingredients are not named in the available details.

Value100

The cost for the lysine amount is low.
Price Per 1000mg of Lysine
The cost for the lysine amount is low.
View ingredientView products
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.
84 Performance

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. The provided collection and goal assessments are well aligned with immunity and hair-support needs, although the small calcium addition makes the formula slightly less minimal.
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 500 mg

Carlson
A clearly stated L-lysine hydrochloride dose at 500 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 500 mg

Source Naturals
A clearly stated L-lysine hydrochloride dose at 500 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.
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.
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.
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