Vitamin C
iHerb
21st Century Vitamin C Prolonged Release 1 000 mg 110 Tablets
11,651 KRW
Listing confidence 97/100 · BListing confidence
Methodology- Grade B
- 97/100Method v2026.08
- Retailer verification
- 25 / 25Retailer, direct purchase URL, brand and product identity
- Label information
- 30 / 30Ingredient, amount per serving, frequency, quantity and dosage form
- Product identity
- 15 / 15Verified product image and retailer image domain
- Sales record
- 12 / 15Rating availability and review-count range
- Data validation
- 15 / 15Price, amount, rating range and linked categories
This is not a score of product efficacy or safety.
Supplement facts
- Serving size
- 1 Tablet
- Servings per day
- 1
- Vitamin C
- 1,000mg1,000% of daily reference
Daily reference 100mg · Upper limit 2,000mg
Price breakdown
- per 1 g
- 106 KRWRank 20 of 100 Vitamin C products
- Cost per day
- 106 KRW
- Supply
- 110 days
- Total servings
- 110
- Total amount
- 110,000mg
Product features
- Potency
- High potency
- Dosage form
- Tablet
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