vitamin

Vitamin C supplements

Half of the 18,583 vitamin C supplements in the NIH label database that print an amount list 100 mg or less per serving; the middle half list 60 mg to 270 mg, and 1 in 82 of the 18,422 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 775 products whose only supplement ingredient is vitamin C list a median of 500 mg, and 1 in 15 of them give more than the upper limit.

How much vitamin C do supplements contain?

The median product lists 100 mg per serving. One in ten lists 21 mg or less, one in ten 750 mg or more. The amount printed most often is 60 mg (2,234 products).

How do the amounts compare with the Daily Value and the upper limit?

The FDA Daily Value for vitamin C is 90 mg (adults and children 4 and older). The median product gives 111% of it per serving; the 90th percentile 833%.

The adult Tolerable Upper Intake Level is 2,000 mg a day (total intake from food, water and supplements). At the most servings their labels direct, 224 of the 18,422 products with a plausible amount (1.2%) give more than that from the supplement alone (what counts as plausible).

The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.

Which products list the most vitamin C?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• Ultra Preventive Forte-Chel (Capsules)Douglas Laboratories3,000 mg
• Ultra Preventive Forte-ChelDouglas Laboratories3,000 mg
• C-500Optimox3,000 mg
• C Buffered CrystalsThompson3,000 mg
• Vitamin C 1,000 mgIndiana Botanic Gardens3,000 mg
• Anti-Alcohol Antioxidants With HepatoProtection ComplexLife Extension3,000 mg
• Mega-Liposomal Vitamin C 3000 mgAurora Nutrascience3,000 mg
• Ortho C+ Lemon FlavorAOR Advanced Orthomolecular Research Premium3,000 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 120 mg; those entered in 2025, 100 mg.

In which products and brands?

Brands listing it most: Nature's Way (366), Douglas Laboratories (330), Nature's Plus (284), ProCaps Laboratories (169), Bronson (151), NOW (144), Country Life (129), Puritan's Pride (110), Source Naturals (108), Nature Made (106).

Every product listing vitamin C

19,919 products, A to Z by name (page 9 of 399), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Active B ComplexCarlson100 mg
• Active ChocolateGNC Women's Ultra Mega200 mg
• Active Citrus FruitNuun38 mg
• Active Core ComplexJayLab Pro12 mg
• Active EyesBronson500 mg
• Active FEAllegis Pharmaceuticals160 mg
• Active Fruit PunchNuun · off the market38 mg
• Active GrapeNuun38 mg
• Active Health TeenRainbow Light · off the market300 mg
• Active Health Teen MultivitaminRainbow Light · off the market0.3 mg as transcribed, likely a slip
• Active Hydration Coconut Berry FlavorSunwarrior Sport90 mg
• Active Hydration Strawberry Lemon Twist FlavorSunwarrior Sport90 mg
• Active Immuity Gummies Elderberry FlavorNUU3100 mg
• Active ImmunityAkasha Naturals333 mg
• Active Immunity + Elderberry Berry BraveOLLY180 mg
• Active Immunity + Elderberry Blood OrangeOLLY · off the market180 mg
• Active Kids CompleteOneSource · off the market45 mg
• Active Kids Plus Extra COneSource · off the market150 mg
• Active Lemon + LimeNuun · off the market38 mg
• Active ManMET-Rx300 mg
• Active Man's FormulaVitabase300 mg
• Active Men's Alpha-MultiVivid Health Nutrition150 mg
• Active Milk ChocolateGNC Women's Ultra Mega200 mg
• Active Mixed BerryGNC Ultra Mega Green500 mg
• Active MultiFINAFLEX300 mg
• Active Multi PacksMET-Rx300 mg
• Active Multi ViteGenestra Brands136 mg
• Active Multi Vite Gummies Natural Raspberry-Lemon FlavorGenestra Brands80 mg
• Active Multi Vite Without Vitamin AGenestra Brands136 mg
• Active One Multi with IronSwanson Premium Brand · off the market150 mg
• Active OrangeNuun38 mg
• Active Peach MangoPlexus54 mg
• Active Q 30 mg + L-Carnitine Fumarate 440 mgTishcon Corp.12 mg
• Active Q Syrup Orange - Pineapple FlavorTishcon Corp.10 mg
• Active SeniorRainbow Light · off the market120 mg
• Active Senior SafeGuard MultivitaminRainbow Light · off the market120 mg
• Active Seniors UnflavoredAll One1,000 mg
• Active Strawberry LemonadeNuun · off the market38 mg
• Active Tri-BerryNuun · off the market38 mg
• Active TropicalNuun38 mg
• Active VanillaGNC Women's Ultra Mega200 mg
• Active Vanilla CremeGNC Women's Ultra Mega200 mg
• Active Vanilla FlavorReliv15 mg
• Active Vitamin PackKirkland Signature590 mg
• Active WatermelonNuun38 mg
• Active without IronGNC Women's Ultra Mega200 mg
• Active WomanMet-Rx200 mg
• Active Woman's MultiVitabase250 mg
• Active Women's MultivitaminSuper Nutrition250 mg
• Active-C 1000 mgThe Vitamin Shoppe1,000 mg

Where next?

• Liquid vitamin C
• Vitamin C capsules
• Vitamin C drops
• Vitamin C gummies
• Vitamin C powder
• Check an amount of vitamin C
• Labels above the upper limit
• All ingredients