| C-1000 Plus | Progressive Professional from Progressive Laboratories | 1000 mg | — | Capsule |
| Bilberry | Bronson Laboratories | 800 mg | — | Capsule |
| Bladder Ease | Vitanica | 750 mg | — | Capsule |
| Citrus Bioflavonoids 500 mg | Country Life | 500 mg | — | Tablet or Pill |
| Citrus Bioflavonoids 500 mg | Bronson | 500 mg | — | Tablet or Pill |
| C Extra 500 mg Plus 500 mg Bioflavonoids | Natural Factors | 500 mg | — | Tablet or Pill |
| Grape Seed Extract 50 mg | Nature's Bounty | 500 mg | — | Capsule |
| Effervescent Glucosamine & Chondroitin | Bronson Laboratories | 400 mg | — | Powder |
| Ascorbates SAP | NFH | 300 mg | — | Capsule |
| C From Nature | Purium | 300 mg | — | Capsule |
| V.M.T. Extra Strength | Viva Vitamins | 300 mg | — | Tablet or Pill |
| C Extra 500 mg Plus 250 mg Bioflavonoids | Natural Factors | 250 mg | — | Capsule |
| Super C | WholeHealth | 250 mg | — | Capsule |
| Natto 3,000 Fu/g | Esmond Natural | 250 mg | — | Tablet or Pill |
| Pine Bark Extract Ultra-Antioxidant Plus | New Sun | 250 mg | — | Capsule |
| Grape Seed Extract 50 mg | Sundown Naturals | 250 mg | — | Capsule |
| Ester-C 500 Plus Bioflavonoids | Bluebonnet | 250 mg | — | Other (e.g. tea bag) |
| Seasonal Shield | NuMedica | 222 mg | — | Capsule |
| Formula 602 | DC | 220 mg | — | Capsule |
| Leg Aid | Bronson Laboratories | 220 mg | — | Capsule |
| Ester-C 1000 | NOW | 200 mg | — | Tablet or Pill |
| Breathe-X | LifeSeasons Therapeutics | 200 mg | — | Capsule |
| C-1000 Mineral Ascorbates | NOW | 200 mg | — | Tablet or Pill |
| Multi Complex | Priority One Nutritional Supplements | 200 mg | — | Capsule |
| VegiSource Multivitamin | Viva Vitamins | 180 mg | — | Tablet or Pill |
| V.M.T. Regular Strength | Viva Vitamins | 150 mg | — | Tablet or Pill |
| Algae-Based Calcium 1,000 mg | Super Nutrition | 150 mg | — | Tablet or Pill |
| More Than A Multiple Iron-Free/Vegetarian Formula | American Health | 150 mg | — | Tablet or Pill |
| More Than A Multiple Multivitamin Formula | American Health | 150 mg | — | Tablet or Pill |
| Buffered Vitamin C 1000 mg | Metabolic Maintenance | 150 mg | — | Capsule |
| C-500 Complex | The Vitamin Shoppe | 139 mg | — | Capsule |
| Ultra BDG | Loomis Enzymes | 130 mg | — | Capsule |
| Advanced Therapeutics Lutein Rx-Eye | NaturesPlus | 125 mg | — | Capsule |
| Respire | Revolution Science | 125 mg | — | Capsule |
| C-3000 Complex | MBi Nutraceuticals | 125 mg | — | Powder |
| Lutein Plus | BIOVEA | 125 mg | — | Capsule |
| Eye Complex | Dr. Rico Perez | 125 mg | — | Capsule |
| TurmeriPro | Oregon's Wild Harvest | 112 mg | — | Capsule |
| Buffered Vitamin C 1000 mg | Universal Nutrition / Universal Naturals | 110 mg | — | Tablet or Pill |
| Immune Ready | MRM | 100 mg | — | Capsule |
| Vegan Morning Multi-Vitamin | Tropical Oasis | 100 mg | — | Liquid |
| Glucose Support | Viva Vitamins | 100 mg | — | Capsule |
| Added Protection III | Douglas Laboratories | 100 mg | — | Tablet or Pill |
| Hair, Skin & Nails | CHK Nutrition | 100 mg | — | Tablet or Pill |
| Vitamin C | Higher Nature | 100 mg | — | Tablet or Pill |
| Buffered Vitamin C 1,250 mg w/Bioflavonoids | Wonder Laboratories | 100 mg | — | Tablet or Pill |
| BioNutrient Complex | Energetix | 100 mg | — | Capsule |
| LDA Formula | Douglas Laboratories | 100 mg | — | Capsule |
| Ultra Preventive | Douglas Laboratories | 100 mg | — | Tablet or Pill |
| VitalEyes Complete | Metabolic Maintenance | 100 mg | — | Capsule |
| Multi Sport Women's Daily | NutraBio Performance | 100 mg | — | Capsule |
| Quercetin Synergy 500 | Gaia Herbs Pro | 100 mg | — | Tablet or Pill |
| Vegan Nightime Multi-Vitamin | Tropical Oasis | 100 mg | — | Liquid |
| Vira-Sin-C | Douglas Laboratories | 100 mg | — | Other (e.g. tea bag) |
| Vitamin-C Plex | OL Olympian Labs | 100 mg | — | Tablet or Pill |
| Quercetin 500 Plus | Newflower Farmers Markets | 100 mg | — | Tablet or Pill |
| Immune+++ | LifePharm | 100 mg | — | Tablet or Pill |
| Non-Acidic Buffered C 1250 mg Vitamin C 1000 mg | Foster Regal | 100 mg | — | Tablet or Pill |
| Maxi-C Caps 1000 mg | Country Life | 100 mg | — | Capsule |
| Maxi-C 1000 mg | Country Life | 100 mg | — | Capsule |
| Immunity Defense | Nutrilite | 100 mg | — | Tablet or Pill |
| PF MultiPlus Berry Pomegranate Flavor | PureFormulas | 100 mg | — | Powder |
| Quercetin with Bromelain | BIOVEA | 100 mg | — | Tablet or Pill |
| Hair, Skin, & Nails | Burton Nutrition | 100 mg | — | Tablet or Pill |
| Stellar C | Designs for Health | 100 mg | — | Capsule |
| Heart Antioxidant | Bluebonnet | 100 mg | — | Capsule |
| Multi-Complex | Nutri-West | 100 mg | — | Tablet or Pill |
| Goliath Multi Vitamin | Goliath Labs | 100 mg | — | Tablet or Pill |
| Buffered C 1250 mg | DC | 100 mg | — | Tablet or Pill |
| Vitamin C 1,000 mg | OL Olympian Labs | 100 mg | — | Tablet or Pill |
| DIM Complex | Metabolic Maintenance | 100 mg | — | Capsule |
| Men’s Multivitamin for Performance Energy | Rainbow Light | 100 mg | — | Tablet or Pill |
| Multi Sport Men's Daily | NutraBio Performance | 100 mg | — | Capsule |
| Glucose Support | CHK Nutrition | 100 mg | — | Capsule |
| Provex-Plus | Melaleuca | 100 mg | — | Capsule |
| Ester-C | Kala Health | 100 mg | — | Tablet or Pill |
| C-1000 Caps With 100 mg Bioflavonoids | NOW | 100 mg | — | Capsule |
| Quercetin Advanced | NutraBio | 100 mg | — | Capsule |
| Power C Vitamin C Complex with Metabolites | California Academy of Health | 100 mg | — | Capsule |
| Glucose Support | Meijer Naturals | 100 mg | — | Capsule |
| Performance Edge | Bronson | 96 mg | — | Capsule |
| Performance Edge For Men | Bronson Laboratories | 96 mg | — | Capsule |
| Ultra Chel | New Sun | 80 mg | — | Tablet or Pill |
| More Than A Multiple Multivitamin For Men | American Health | 75 mg | — | Tablet or Pill |
| C.V. Support Formula | Douglas Laboratories | 75 mg | — | Tablet or Pill |
| Vitamin C with Flavonoids | Thorne | 75 mg | — | Capsule |
| Buffered Vitamin C 500 mg | Metabolic Maintenance | 75 mg | — | Capsule |
| Full Spectrum Daily Multiple | Healthy Choice Naturals | 75 mg | — | Tablet or Pill |
| Vitaworks With Iron | Douglas Laboratories | 75 mg | — | Capsule |
| Corti-B Plex | NuMedica | 75 mg | — | Capsule |
| More Than A Multiple Multivitamin For Women | American Health | 75 mg | — | Tablet or Pill |
| Max Effect Natural Berry Blast | Essential Source | 75 mg | — | Liquid |
| ProJoba Super Daily | ProJoba International | 75 mg | — | Tablet or Pill |
| Vegi Source | Bronson Laboratories | 75 mg | — | Capsule |
| VitaWorx | Douglas Laboratories | 75 mg | — | Capsule |
| Grape Seed Extract 50 mg | New Sun | 60 mg | — | Capsule |
| Grapeseed Extract 50 mg | Vitamin World | 60 mg | — | Capsule |
| Maximum Strength Grapeseed Extract 200 mg | Vitamin World | 60 mg | — | Capsule |
| Ester-C Plus | Douglas Laboratories | 50 mg | — | Capsule |
| Vitamin C | NutraChamps | 50 mg | — | Capsule |