Best Vitamin C products by transparent scoring (2026)
Single-ingredient products scored by public rules: dose fit, label transparency, data verification, company transparency, third-party testing. Not a measure of efficacy or safety. No paid placement.
Products ranked: 386 · Reference range: 90 – 2,000 mg (source) · Updated 2026-11-01
Reference range: from 100% of the US Daily Value to the upper reference value.
Single-ingredient products only.
Left out of this list: combination products (a single-ingredient list exists) (321)
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 (No data (not scored); the other four parts are rescaled from 90 to 100) — Methodology · Vitamin C →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
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| 1 tie |
Vitamin C GNC · US NIH DSLD |
500 mg | 100.0 | Breakdown
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| 1 tie |
Vitamin C 250 mg New Chapter · US NIH DSLD |
250 mg | 100.0 | Breakdown
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| 1 tie |
Vitamin C Powder Swanson · US NIH DSLD |
1,000 mg | 100.0 | Breakdown
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| 4 | Vitamin C Nature's Sunshine · US NIH DSLD |
1,000 mg | 97.8 | Breakdown
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| 5 tie |
Alive! Vitamin C Nature's Way · US NIH DSLD |
1,000 mg | 94.4 | Breakdown
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| 5 tie |
Ascorbic Acid Thorne · US NIH DSLD |
1,000 mg | 94.4 | Breakdown
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| 5 tie |
Liquid Vitamin C 1000 mg Natural Citrus Flavors Dynamic Health · US NIH DSLD |
1,000 mg | 94.4 | Breakdown
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| 5 tie |
Liquid Vitamin C for Kids 333 mg Natural Citrus Flavor Dynamic Health · US NIH DSLD |
333 mg | 94.4 | Breakdown
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| 5 tie |
Pure Vitamin C Allergy Research Group · US NIH DSLD |
2,000 mg | 94.4 | Breakdown
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| 10 tie |
Chewable Vitamin C JAMP Pharma Corporation · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
Chewable Vitamin C 500 mg Vita Health Products Inc. · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
Chewable Vitamin C 500 mg with Sucralose International Vitamin Corporation · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
GNC Vitamin C 500 Buffered GNC · Malaysia NPRA |
609 mg | 93.3 | Breakdown
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| 10 tie |
GNC Vitamin C 1000 Tablet GNC · Malaysia NPRA |
1,052 mg | 93.3 | Breakdown
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| 10 tie |
MapleLife¿ Nutrition & Formula Vitamin C 1000mg Nutralab Canada Corp. · Health Canada LNHPD |
1,000 mg | 93.3 | Breakdown
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| 10 tie |
MapleLife¿ and/ or NutraLab¿ Nutrition & Formula Vitamin C 1000 mg Chewable Tablet Nutralab Canada Corp. · Health Canada LNHPD |
1,000 mg | 93.3 | Breakdown
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| 10 tie |
MapleLife¿ and/or NutraLab¿ Nutrition & Formula Vitamin C 500 mg Chewable Tablet Nutralab Canada Corp. · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
Timed Release Vitamin C 1000 mg with Rose Hips Tablets International Vitamin Corporation · Health Canada LNHPD |
1,000 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C Nature's Sunshine Products of Canada Ltd. · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C 1000 mg GFR Pharma Ltd. · Health Canada LNHPD |
1,000 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C 500 mg GFR Pharma Ltd. · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C 1000 mg Timed Release GFR Pharma Ltd. · Health Canada LNHPD |
1,000 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C 250 mg GFR Pharma Ltd. · Health Canada LNHPD |
250 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C 250 mg Chewable Orange Tablets GFR Pharma Ltd. · Health Canada LNHPD |
250 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C 500 mg International Vitamin Corporation · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C 500 mg Chewable Orange Tablets GFR Pharma Ltd. · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C 500 mg Timed Release GFR Pharma Ltd. · Health Canada LNHPD |
500 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C Chewable Nature's Sunshine Products of Canada Ltd. · Health Canada LNHPD |
250 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C Timed Release Nature's Sunshine Products of Canada Ltd. · Health Canada LNHPD |
1,000 mg | 93.3 | Breakdown
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| 10 tie |
Vitamin C-1000 mg with Rose Hips Vita Health Products Inc. · Health Canada LNHPD |
1,000 mg | 93.3 | Breakdown
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| 31 tie |
Ascorbic Acid One Gram Thorne Research · US NIH DSLD |
1,000 mg | 92.2 | Breakdown
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| 31 tie |
Vitamin C Sundown Naturals · US NIH DSLD |
1,000 mg | 92.2 | Breakdown
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| 33 | High Potency Vitamin C 1000 mg Sundown Naturals · US NIH DSLD |
1,000 mg | 88.9 | Breakdown
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| 34 tie |
21ST CENTURY ACID FREE C 1000MG TABLET 21st Century · Malaysia NPRA |
1,000 mg | 87.8 | Breakdown
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| 34 tie |
21st Century Acid Free C 500mg Tablet 21st Century · Malaysia NPRA |
500 mg | 87.8 | Breakdown
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| 34 tie |
Ascorbic Acid Thorne Research, Inc. · Health Canada LNHPD |
1,000 mg | 87.8 | Breakdown
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| 34 tie |
BLACKMORES VITAMIN C 500MG TABLET Blackmores · Malaysia NPRA |
515 mg | 87.8 | Breakdown
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| 34 tie |
C 1000 Douglas Laboratories Canada · Health Canada LNHPD |
1,000 mg | 87.8 | Breakdown
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| 34 tie |
Orange Chew 500mg Douglas Laboratories Canada · Health Canada LNHPD |
500 mg | 87.8 | Breakdown
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| 34 tie |
Pure Encapsulations Liposomal Vitamin C Liquid Pure Encapsulations · Health Canada LNHPD |
1,000 mg | 87.8 | Breakdown
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| 34 tie |
REDOXON® LEMON Redoxon · Health Canada LNHPD |
1,000 mg | 87.8 | Breakdown
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| 34 tie |
REDOXON® ORANGE Redoxon · Health Canada LNHPD |
1,000 mg | 87.8 | Breakdown
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| 34 tie |
Redoxon Vitamin C 1000mg Orange Flavour Effervescent Tablet Redoxon · Malaysia NPRA |
1,000 mg | 87.8 | Breakdown
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| 34 tie |
SWISSE ULTIBOOST VITAMIN C 1,000MG TABLETS Swisse · Malaysia NPRA |
1,248 mg | 87.8 | Breakdown
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| 34 tie |
Vitamin C Gummy Pure Encapsulations · Health Canada LNHPD |
125 mg | 87.8 | Breakdown
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| 46 tie |
REDOXON KIDS VITAMIN C 200MG CHEWABLE TABLETS Redoxon · Malaysia NPRA |
217 mg | 84.4 | Breakdown
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| 46 tie |
REDOXON VITAMIN C 500MG CHEWABLE TABLETS Redoxon · Malaysia NPRA |
544 mg | 84.4 | Breakdown
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| 48 tie |
Ancient Nutrients Vitamin C + Probiotics 900 mg Ancient Nutrition · US NIH DSLD |
900 mg | 83.3 | Breakdown
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| 48 tie |
Dynamic Liposomal Vitamin C Stonehenge Health · US NIH DSLD |
1,500 mg | 83.3 | Breakdown
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| 48 tie |
Liposomal Vitamin C NutriVein · US NIH DSLD |
1,600 mg | 83.3 | Breakdown
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100 products were scored; the top 50 are listed here. See the rest in the product list.
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.