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L-Carnosine 500 mg

Natural Factors
4.8
★ ★ ★ ★ ★
(1066 ratings)
Carnosine 500 mg
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Score83
A practical 500 mg L-carnosine serving leads this focused formula, while the vitamin C addition is minor. Good usability is tempered by limited form and excipient detail.
How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
Anti-Aging

Score 83

A practical 500 mg L-carnosine serving leads this focused formula, while the vitamin C addition is minor. Good usability is tempered by limited form and excipient detail.
How scoring works
$24.47($0.40 per serving)
iHerb
$ 24.47
Walmart
$ 24.47
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Analysis

A one-capsule serving supplies 500 mg of L-carnosine, which is a useful amount for focused glycation support. The label names the active clearly enough for basic comparison, although it does not specify the dipeptide form further.

Vitamin C adds some antioxidant support, but 25 mg is a modest contribution rather than a major reason to choose the product. The combination remains coherent because the extra ingredient does not reduce the carnosine amount.

Aggregate feedback and the cost per active amount support good everyday usability. Full inactive-ingredient details were not supplied, leaving some uncertainty for people who screen capsules closely.

Who is it for
  • Adults seeking a standard L-carnosine amount
  • People who want modest added antioxidant support
  • Users comfortable with a partly specified label
Best for
  • Daily glycation support
  • One-capsule use
  • A focused formula with a small vitamin C addition

Pros

  • Useful 500 mg L-carnosine amount
  • One-capsule serving
  • Vitamin C does not dilute the main active
  • Favorable active-ingredient value

Cons

  • Specific L-carnosine form is not stated
  • Vitamin C amount is modest
  • Inactive ingredients were not supplied

Nutrient quality

94 Highest impact

Explicit L-carnosine labeling supports strong ingredient identity. The carnosine amount reaches a practical systemic daily serving, while the amount is substantial without being excessive.

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Ingredient transparency

79 High impact

All listed active amounts are disclosed without a hidden blend. Intake directions and inactive ingredients are not supplied.

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Customer satisfaction

69 High impact

The supplied average rating is strong and comes from a substantial rating pool. No firsthand experiences or recurring complaint details were provided, so consistency remains uncertain.

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Value for money

88 Highest impact

A practical carnosine amount provides good value at a modest cost. The small vitamin C addition does not materially dilute the formula.

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Goals

Anti-Aging
Impact
High effect
B Goal FitA- Strength of SupportD+ CoverageA Formula Quality
Carnosine · 500 mg

L-carnosine directly supports glycation defense, a relevant mechanism for preserving protein and tissue function with age. The disclosed 500 mg serving provides a focused amount, while a small vitamin C addition supplies modest antioxidant context.

Human evidence for broad healthspan outcomes remains less mature than evidence for established nutrients. The concise formula is best viewed as targeted glycation support rather than complete healthy-aging coverage.

Study evidence
Carnosine Supportive 6 studies
Vitamin C Supportive 30 studies

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
25 mg
L-Carnosine
500 mg
Gluten Free Adults 18–50 Vegan Dairy Free Sugar Free Vegetarian
Report overview
Carnosine · 500 mg OverallScore97
A+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value

The label clearly identifies L-carnosine, although it does not provide the more specific dipeptide wording. A 500 mg serving reaches the collection median in one capsule, making daily use straightforward. Added vitamin C does not dilute the carnosine dose, and the supplied cost data indicate strong value.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Multinuclear MRS at 7T Uncovers Exercise Driven Differences in Skeletal Muscle Energy Metabolism Between Young and Seniors.
    Krumpolec P; Klepochová R; Just I; Tušek Jelenc M; Frollo I; Ukropec J; Ukropcová B; Trattnig S; Krššák M; Valkovič L · Frontiers in physiology · 2021
    Cross-sectional studyAnti-Aging forCarnosine
  2. Nutritional Strategies Targeting Glucose Metabolism to Slow Cognitive Aging: A Scoping Review of Human Trials.
    Fernando MG; Sullivan K; Simons M; Squillace A; Kiat H; Martins RN · The American journal of clinical nutrition · 2026
    Scoping review32 studies pooledAnti-Aging forCarnosine
  3. Anserine/Carnosine Supplementation Preserves Blood Flow in the Prefrontal Brain of Elderly People Carrying APOE e4.
    Ding Q; Tanigawa K; Kaneko J; Totsuka M; Katakura Y; Imabayashi E; Matsuda H; Hisatsune T · Aging and disease · 2020
    Randomized trial68 participantsAnti-Aging forCarnosine
  4. Skin beautification with oral non-hydrolized versions of carnosine and carcinine: Effective therapeutic management and cosmetic skincare solutions against oxidative glycation and free-radical production as a causal mechanism of diabetic complications and skin aging.
    Babizhayev MA; Deyev AI; Savel'yeva EL; Lankin VZ; Yegorov YE · The Journal of dermatological treatment · 2013
    Randomized trial42 participantsAnti-Aging forCarnosine
  5. Telomere Attrition in Human Lens Epithelial Cells Associated with Oxidative Stress Provide a New Therapeutic Target for the Treatment, Dissolving and Prevention of Cataract with N-Acetylcarnosine Lubricant Eye Drops. Kinetic, Pharmacological and Activity-Dependent Separation of Therapeutic Targeting: Transcorneal Penetration and Delivery of L-Carnosine in the Aqueous Humor and Hormone-Like Hypothalamic Antiaging Effects of the Instilled Ophthalmic Drug Through a Safe Eye Medication Technique.
    Babizhayev MA; Yegorov YE · Recent patents on drug delivery & formulation · 2017
    Narrative reviewAnti-Aging forCarnosine
  6. Study on the Multiple Efficacies of Vitamin C Serum in Anti-Glycation, Anti-Carbonylation, Antioxidation, and Anti-Inflammation of Human Skin Based on In Vivo Tests.
    Zi Y; Liu J; Liu Q; Pan Y; Jiang X · Journal of cosmetic dermatology · 2026
    Randomized trial66 participantsAnti-Aging forVitamin C
  7. Evaluation of the anti-wrinkle effect of a lipophilic pro-vitamin C derivative, tetra-isopalmitoyl ascorbic acid.
    Yokota M; Yahagi S · Journal of cosmetic dermatology · 2022
    Randomized trial69 participantsAnti-Aging forVitamin C
  8. The role of vitamin C in pushing back the boundaries of skin aging: an ultrasonographic approach.
    Crisan D; Roman I; Crisan M; Scharffetter-Kochanek K; Badea R · Clinical, cosmetic and investigational dermatology · 2015
    Clinical trial60 participantsAnti-Aging forVitamin C
  9. In vivo evaluation of topical ascorbic acid application on skin aging by 50 MHz ultrasound.
    Vergilio MM; Aiello LM; Furlan AS; Caritá AC; Azevedo JR; Bolzinger MA; Chevalier Y; Leonardi GR · Journal of cosmetic dermatology · 2022
    Randomized trial25 participantsAnti-Aging forVitamin C
  10. Clinical Applications of Vitamin C in Dermatology: A Systematic Review.
    Boghosian T; Mendez H; Boghosian N; Sayegh M; Beer J; Tosti A · The Journal of clinical and aesthetic dermatology · 2026
    Systematic review44 studies pooledAnti-Aging forVitamin C