Free-Form L-Lysine 500 mg

Free-Form L-Lysine 500 mg

Swanson Premium Brand4.8 (3,325 ratings)
Format:Capsule Quantity: 100 Capsule(s) · 100 servings
Goals
$11.09 $0.11 per serving

Product analysis

72 out of 100

Free-Form L-Lysine 500 mg offers a focused lysine supplement with reasonably favorable value. The clearly identified lysine source makes comparison with similar products easier.

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

Nutrient Quality40

L-lysine hydrochloride is the named source. Its relative preparation quality remains uncertain.

Ingredient Transparency100

Both amounts and ingredient sources are disclosed. That makes like-for-like comparisons easier.

Value For Money80

The available price comparison is favorable for the lysine quantity. Its age leaves some uncertainty about how closely it reflects current value.

Customer Satisfaction89

Customer ratings are strongly favorable. A large rating pool provides a broader picture of customer satisfaction.

Product Focus71

A single active keeps the purpose focused on lysine supplementation. No clearly unnecessary active has been identified.

Format
Capsule
Container
100 Capsule(s)
Per serving
$0.11
Customer rating
4.8 · 3,325 ratings
Report analysis

Goals

Hair Health
Impact
High effect
B+ Ingredient FitF PathwaysB+ EvidenceA+ Formulation Logic
Lysine · 500 mg

Lysine supplies an amino-acid building block used in proteins. The 500 mg per serving makes a partial contribution in the saved comparison. However, protein adequacy and selected combination regimens in people with low ferritin do not establish an independent routine hair-growth benefit from lysine.

How this product is rated for Hair Health

Ingredient fit80

The formula is focused on the counted nutrient, with few ingredients outside the hair-health comparison. The declared serving makes only a partial amount contribution relative to the supplied reference exposures.
Goal fit
The formula is focused on the counted nutrient, with few ingredients outside the hair-health comparison.
Dose adequacy
The declared serving makes only a partial amount contribution relative to the supplied reference exposures.

Pathways15

Lysine gives a limited contribution to the hair-fibre building-block route, without established independent regrowth evidence.
Depth
Lysine gives a limited contribution to the hair-fibre building-block route, without established independent regrowth evidence.
Breadth
None of the assessed routes reaches the coverage threshold.

Evidence83

Lysine contributes to the saved evidence finding, but the supplied information does not establish an independent routine hair benefit.
Evidence strength
Lysine contributes to the saved evidence finding, but the supplied information does not establish an independent routine hair benefit.
Studied preparation
The counted preparations receive full recognition in the saved comparison, without establishing a hair outcome for every included nutrient.

Formulation logic100

No counted ingredient lacks a required partner or triggers the applied combination-conflict checks. The counted ingredients meet the comparison's minimum amount threshold.
Partner coverage
No counted ingredient lacks a required partner in the checks applied.
Conflicts
No combination matches the specific conflict checks applied; this does not establish overall suitability or exclude excess-intake concerns.
Effective doses
All counted ingredients meet the minimum amount threshold used here, which is not a proven hair-growth dose.
Study evidence
Lysine Supportive 1 study

Ingredients

IngredientAmount per servingScore
L-Lysine (L-Lysine Hydrochloride)
500 mg 81
Adults 18–50
Report overview
B- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB+ Value
Each serving lists 500 mg of lysine, supplied as L-Lysine Hydrochloride. The whole-product price works out to about $0.22 per 1,000 mg of lysine.
How this ingredient is rated

Active Ingredient Quality & Bioavailability72

The identified form is L-Lysine Hydrochloride. The saved facts do not identify a specific grade or sourcing claim.
Lysine Chemical Form & Sourcing
The identified form is L-Lysine Hydrochloride.
Purity and Grade Signals
The saved facts do not identify a specific grade or sourcing claim.

Dose, Safety & Label Transparency90

The serving lists 500 mg of lysine.
Lysine Dose by Declared Basis
The serving lists 500 mg of lysine.
Clean Label & Additives
The evaluation flags common additives, but the saved facts do not identify them.

Value80

The whole-product price works out to about $0.22 per 1,000 mg of lysine.
Price Per 1000mg of Lysine
The whole-product price works out to about $0.22 per 1,000 mg of lysine.
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