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 196 of 399), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Liposomal Vitamin C 500 mgResistance C500 mg
• Liposomal Vitamin C 500 mgCalifornia Gold Nutrition · off the market500 mg
• Liposomal Vitamin C 500 mgSolaray · off the market500 mg
• Liposomal Vitamin C Capsules 1000 mgCore Med Science1,000 mg
• Liposomal Vitamin C Citrus Vanilla Flavor 1000 mgCodeage Nanofood1,000 mg
• Liposomal Vitamin C Complex 2032 mgNusaPure2,000 mg
• Liposomal Vitamin C for KidsDr. Mercola125 mg
• Liposomal Vitamin C LiquidPure Encapsulations1,000 mg
• Liposomal Vitamin C Liquid Gel 1100 mgSupplements Studio1,100 mg
• Liposomal Vitamin C Orange Creamsicle FlavorVinco1,000 mg
• Liposomal Vitamin C PureNanoNutra1,000 mg
• Liposomal Vitamin C SoftgelsLiposomal Nutritionals750 mg
• Liposomal Vitamin C with R-Lipoic AcidQuicksilver Scientific500 mg
• Liposomal Vitamin C+Codeage1,500 mg
• Liposomal Vitamin C+ ElderberryQuicksilver Scientific1,000 mg
• LipotriadNumark Laboratories120 mg
• LipotriadLipotriad120 mg
• LipotropeProgressive Professional from Progressive Laboratories50 mg
• LipoValinSeroVital22 mg
• LipoZome-CNutrasal1,000 mg
• Liqui-C Complete Orange VanillaBrainchild Nutritionals500 mg
• Liqui-Vite Citrus FlavorNeoLife Nutritionals30 mg
• Liquid 20/20 VisionTropical Oasis120 mg
• Liquid Advanced Glucosamine Chondroitin & MSM + CCalifornia Academy of Health90 mg
• Liquid Allergy Relief for Children GrapeVitables50 mg
• Liquid B-12NOW20 mg
• Liquid B-12 B-ComplexNOW20 mg
• Liquid B-Complex Orange PassionfruitSunforce Health & Organics Inc.500 mg
• Liquid BeautyTropical Oasis90 mg
• Liquid Body Purifier - Natural Citrus FlavorGNC Wellbeing · off the marketin a blend
• Liquid Bone Power With Boron Natural Orange Cream FlavorNature's Plus · off the market200 mg
• Liquid C 1000 mg Natural Orange FlavorNature's Plus · off the market1,000 mg
• Liquid C 310 mg Mixed BerryThe Vitamin Shoppe310 mg
• Liquid C 500 mg Orange FlavorThymely Solutions · off the market500 mg
• Liquid C 500 mg Orange FlavorReliable-1 Laboratories500 mg
• Liquid C 500 mg Orange FlavorVillage Vitality500 mg
• Liquid C Supplement 1000 mg Natural Orange FlavorNatures Plus · off the market1,000 mg
• Liquid C Supplement 1000 mg Orange FlavorNaturesPlus1,000 mg
• Liquid Children's Multi-Vitamin Natural Tropical Berry FlavorNature's Plus Source of Life Animal Parade50 mg
• Liquid ChlorophyllApproved Science10 mg
• Liquid Chlorophyll MDPremium Certified10 mg
• Liquid Co-Q10 Great Tasting TangerineNature's Answer10 mg
• Liquid Co-Q10 Natural Tangerine FlavorNature's Answer · off the market10 mg
• Liquid Co-Q10 Natural Tangerine FlavoredNature's Answer · off the market10 mg
• Liquid Co-Q10 With Vitamins C & E Natural Tangerine FlavorNature's Answer · off the market10 mg
• Liquid Collagen & Hyaluronic AcidBioCare80 mg
• Liquid Collagen Complex Healthy Hair, Skin & Nails Delicious Grape FlavorRejuviCare30 mg
• Liquid Collagen Delicious Natural Berry FlavorNature's Truth30 mg
• Liquid Collagen Orange FlavoredSunshine Naturals100 mg
• Liquid Collagen Plus Vitamin C 5,000 mg BerryLifeTIME100 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