Klean Antioxidant
100/100
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 33% of ingredients have research evidence
A
Label Compliance Grade
Product Label
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Label Data
3 Vegetarian Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
33%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin C
125 mg
(139% DV)
300 mcg
(1000% DV)
📊 10.0× RDA — above typical dose
📚 26 studies (Tier A: 0, B: 11)
1000 mg
📊 Market median: 500.0mg (861 products)
📚 60 studies (Tier A: 4, B: 13)
400 mg
📊 Market median: 200.0mg (198 products)
📚 6 studies — no high-quality reviews
Maqui
100 mg
2 mg
📊 Market median: 4.0mg (47 products)
Other Ingredients
Hydroxypropyl Methylcellulose
Microcrystalline Cellulose
Calcium Carbonate
Silica
Vegetable Stearate
Label Claims — Verification
❓
All Other
All Other (99% of products)
Structure/Function (83% of products)
Nutrient (54% of products)
Target Groups
Adult (18 - 50 Years)
Gluten Free
Product Information
📋 Directions for Use
Suggested usage: As a dietary supplement, adults take 3 vegetarian capsules daily with a meal, or as directed by a trainer, coach, or health professional.
⚠️ Warnings & Precautions
Warning: If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product.
Keep out of the reach of children.
Use only if safety seal is intact.
🧪 Formulation Notes
Gluten-free, Non-GMO
Additional Information
Klean Athlete Nutritional Supplements
NSF Certified Sport
Store in a cool, dry place.
Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity.
Scan to learn about our Klean manufacturing and certifications
Product Details
UPC / SKU
3 10539 03842 0
DSLD Entry Date
2020-10-23
Product Type
Other Combinations
Form
Capsule
Brand
Klean Athlete
DSLD ID
237072
Data Updated
2026-04-11
Research Evidence
371
Research Sources
54
Avg Quality Score
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A
Vitamin C supplementation for the primary prevention of cardiovascular disease
A
Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
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