L-Lysine 500 mg

L-Lysine 500 mg

NOW4.9 (441 ratings)
Format:Tablet Quantity: 250 Tablet(s) · 250 servings
Goals
$12.70 $0.05 per serving
Daily VitaLowest$12.70Vitacost$13.43

Product analysis

75 out of 100

L-Lysine 500 mg offers an inexpensive way to supplement lysine for protein nutrition, with a possible role in selected hair-support combinations.

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

Nutrient Quality40

Lysine quality cannot be judged confidently from the information available. The named form alone does not establish how it compares with other lysine options.

Ingredient Transparency100

The lysine amount and form are clearly identified. That makes it straightforward to check what each serving supplies.

Value For Money100

The cost for a comparable amount of lysine is low. That makes it an economical choice for someone specifically seeking lysine.

Customer Satisfaction80

Customers give very positive ratings across several hundred reviews. That supports confidence in satisfaction, without showing that lysine improves hair growth.

Product Focus71

The formula has a clear focus on lysine for protein nutrition and possible hair support. Any hair benefit is uncertain, since lysine alone has not established an independent hair-growth effect.

Format
Tablet
Container
250 Tablet(s)
Per serving
$0.05
Customer rating
4.9 · 441 ratings
Report analysis

Goals

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

Lysine contributes to protein nutrition and can be relevant in selected low-ferritin combination regimens. This does not establish an independent hair-growth benefit from lysine alone. The 500 mg serving provides a limited comparison with the supplied amount anchors, rather than a proven hair-treatment dose.

How this product is rated for Hair Health

Ingredient fit80

Relevant nutritional ingredients are present, with the amount findings determining how much they contribute.
Goal fit
The declared active ingredients are focused on nutritional roles associated with hair health.
Dose adequacy
The declared amounts provide uneven support against the supplied comparison anchors; some contributions are limited or unresolved.

Pathways15

Antioxidant-related nutrient contributions are the strongest finding, without establishing a clinical hair-growth effect.
Depth
Antioxidant-related nutrient contributions are the strongest finding, without establishing a clinical hair-growth effect.
Breadth
None of the evaluated processes reaches the supplied coverage requirement.

Evidence83

The lysine findings do not establish independent routine hair-growth benefit.
Evidence strength
The lysine findings do not establish independent routine hair-growth benefit.
Studied preparation
The saved findings accept the relevant preparations for comparison; this does not prove the whole product produces the studied hair outcomes.

Formulation logic100

The supplied findings identify no missing required partners or configured conflicts. Amount comparisons do not establish a combined hair-growth effect.
Partner coverage
No required ingredient partner is missing from the supplied findings.
Conflicts
No configured ingredient conflict was found in the supplied findings.
Effective doses
All counted ingredients meet the supplied minimum amount comparison; this is not a proven effective hair dose.
Study evidence
Lysine Supportive 1 study

Ingredients

IngredientAmount per servingScore
L-Lysine (L-Lysine Hydrochloride)
 500 mg 96
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Lysine (L-Lysine Hydrochloride) · 500 mg OverallScore96
A+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value
A serving lists 500 mg of lysine from L-lysine hydrochloride. The whole product costs about $0.10 per gram of lysine.
How this ingredient is rated

Active Ingredient Quality & Bioavailability100

L-lysine hydrochloride is the stated source. The evaluation records a grade claim, but the available details do not name the specific grade.
Lysine Chemical Form & Sourcing
L-lysine hydrochloride is the stated source.
Purity and Grade Signals
The evaluation records a grade claim, but the available details do not name the specific grade.

Dose, Safety & Label Transparency90

The serving lists 500 mg of lysine. The evaluation identifies a common excipient without naming it.
Lysine Dose by Declared Basis
The declared lysine amount is 500 mg per serving.
Clean Label & Additives
The evaluation identifies a common excipient without naming it.

Value100

The whole-product price works out to about $0.10 per gram of lysine.
Price Per 1000mg of Lysine
The whole-product price works out to about $0.10 per gram of lysine.
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.
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.
86 Value

L-Lysine 500 mg

Carlson
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.
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.
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