L-Glutathione (Reduced) 500 mg

L-Glutathione (Reduced) 500 mg

California Gold Nutrition4.6 (17,160 ratings)
Format:Capsule Quantity: 30 Capsule(s) · 30 servings
Goals
$12.05 $0.40 per serving
iHerbLowest$12.05Amazon$23.96

Product analysis

62 out of 100

L-Glutathione (Reduced) 500 mg may affect skin pigmentation, although the evidence comes from small trials and does not establish broad skin improvement.

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

Nutrient Quality20

The glutathione form is not sufficiently identified to judge its quality confidently. The product name alone does not resolve that uncertainty.

Ingredient Transparency63

The glutathione amount is stated, making serving quantity clear. Its detailed form is not specified, which limits comparisons of quality.

Value For Money100

Glutathione offers good value at the cost per serving. That price comparison does not establish an advantage in absorption or skin effects.

Customer Satisfaction89

Customer ratings are strongly positive across a large number of ratings. The broad feedback base gives substantial context for satisfaction without identifying specific experiences.

Product Focus70

A single ingredient keeps the formula focused on skin-related aims. The clearest evidence concerns pigmentation, with broader skin benefits remaining uncertain.

Format
Capsule
Container
30 Capsule(s)
Per serving
$0.40
Customer rating
4.6 · 17,160 ratings
Report analysis

Goals

Skin Health
Skin Health
Impact
High effect
B+ Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Gluthathione · 500 mg
Study evidence

Ingredients

IngredientAmount per servingScore
L-Glutathione
500 mg 69
Gluten Free Adults 18–50 Dairy Free
Report overview
Gluthathione · 500 mg OverallScore69
D- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value
A serving provides 500 mg of reduced glutathione. The cost per serving is low. The glutathione is in reduced form. No branded source or specific purity claim is indicated in the available information.
How this ingredient is rated

Active Ingredient Quality & Bioavailability42

The glutathione is in reduced form. No branded source or specific purity claim is indicated in the available information.
Glutathione Form and Delivery System
The glutathione is in reduced form.
Branded Ingredients and Purity Signals
No branded source or specific purity claim is indicated in the available information.

Dose, Safety & Label Transparency80

A serving provides 500 mg of reduced glutathione. A flow agent is indicated, but its identity is unavailable.
Glutathione Potency per Serving
A serving provides 500 mg of reduced glutathione.
Label Transparency and Excipient Quality
A flow agent is indicated, but its identity is unavailable.

Value100

The cost per serving is low.
Price per Bioavailable Serving
The cost per serving is low.
View ingredientView products
84 Performance

L-Glutathione (Reduced) 500 mg

California Gold Nutrition

Its label clearly provides 500 mg of L-Glutathione, Reduced, making it a more clearly defined glutathione option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.

76 Performance

Reduced Glutathione 250 mg

Source Naturals

Its label clearly provides 250 mg of L-Glutathione, Reduced, making it a more clearly defined glutathione option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.

74 Performance

Optimal Liposomal Glutathione Plus

Seeking Health

Its label clearly provides 350 mg of L-Glutathione, making it a more clearly defined glutathione option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.

79 Budget

Glutathione 500 mg

Nutricost

Its label clearly provides 500 mg of L-Glutathione, preserving relevant glutathione coverage. Compared with the original, it lowers the serving cost, although the input does not provide independent testing or absorption evidence.

76 Budget

L-Glutathione 500 mg

AN Amazing Nutrition Amazing Formulas

Its label clearly provides 500 mg of L-Glutathione, preserving relevant glutathione coverage. Compared with the original, it lowers the serving cost, although the input does not provide independent testing or absorption evidence.

73 Budget

Chem-Defense Orange Flavored

Source Naturals

Its label clearly provides 50 mg of L-Glutathione, preserving relevant glutathione coverage. Compared with the original, it lowers the serving cost, although the input does not provide independent testing or absorption evidence.

72 Value

L-Glutathione 100 mg

Bluebonnet

Its label clearly provides 100 mg of L-Glutathione, Reduced, keeping the formula relevant to glutathione. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.

79 Value

Mega-Liposomal Glutathione+ 750 mg Organic Fruit Flavor

Aurora NutraScience

Its label clearly provides 750 mg of L-Glutathione, keeping the formula relevant to glutathione. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.

75 Value

Reduced Glutathione Complex 50 mg Orange Flavored

Source Naturals

Its label clearly provides 50 mg of L-Glutathione, keeping the formula relevant to glutathione. Compared with the original, the lower serving cost and ingredient detail create a useful quality-to-cost balance, although the input does not provide independent testing or absorption evidence.

Report alternatives

Sources

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

  1. The effects of the oral supplementation of L-Cystine associated with reduced L-Glutathione-GSH on human skin pigmentation: a randomized, double-blinded, benchmark- and placebo-controlled clinical trial.
    Duperray J; Sergheraert R; Chalothorn K; Tachalerdmanee P; Perin F · Journal of cosmetic dermatology · 2022
    Randomized trial124 participantsSkin Health forGluthathione
  2. Skin-whitening and skin-condition-improving effects of topical oxidized glutathione: a double-blind and placebo-controlled clinical trial in healthy women.
    Watanabe F; Hashizume E; Chan GP; Kamimura A · Clinical, cosmetic and investigational dermatology · 2014
    Randomized trial30 participantsSkin Health forGluthathione
  3. Systematic Review of the Efficacy and Safety of Topical Glutathione in Dermatology.
    Khanna R; Rambhia P; Chapas A · The Journal of clinical and aesthetic dermatology · 2025
    Systematic review5 studies pooledSkin Health forGluthathione
  4. Effects of antioxidants on glutathione levels and clinical recovery from the malnutrition syndrome kwashiorkor--a pilot study.
    Becker K; Pons-Kühnemann J; Fechner A; Funk M; Gromer S; Gross HJ; Grünert A; Schirmer RH · Redox report : communications in free radical research · 2006
    Randomized trialSkin Health forGluthathione
  5. Glutathione and its antiaging and antimelanogenic effects.
    Weschawalit S; Thongthip S; Phutrakool P; Asawanonda P · Clinical, cosmetic and investigational dermatology · 2020
    Randomized trial57 participantsSkin Health forGluthathione