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

• Cranberry with Vitamin CNature's Bounty40 mg
• Cranberry with Vitamin C & ENutricost · off the market45 mg
• Cranberry with Vitamin C & ESafrel60 mg
• Cranberry with Vitamin C and Eup&up40 mg
• Cranberry with Vitamin C Softfgels 40 mgBulkSupplements.com40 mg
• Cranberry+ Triple StrengthPhysioLogics · off the market40 mg
• CranberyAZO200 mg
• CRaNiULS 520 mgDr. Clark Store44 mg
• CranRx GummiesNature's Way · off the market90 mg
• CranRx GummyNature's Way90 mg
• CranRx Liquid CranberryNature's Way120 mg
• CranRx Women's Care with ProbioticsNature's Way60 mg
• CrantrateDC20 mg
• Crantrate 3X Triple StrengthDC20 mg
• Crave ControlReset360100 mg
• Crave ControlHoltraCeuticals50 mg
• CraveArrestDesigns for Health100 mg
• Craze Berry Lemonade FlavorDS Driven Sports250 mg
• Craze Candy Grape FlavorDS Driven Sports250 mg
• Creagen Creatine Matrix Blue RazzPS ProSupps60 mg
• Creagen Creatine Matrix Rocket PopPS ProSupps60 mg
• Creamy CoconutSimply Youngin a blend
• Creapro3 Fruit Punch Flavorfuel:one · off the market60 mg
• Creatine CapsulesLife Extension11 mg
• Creatine Protein Chocolate FlavourBody Attack Sports Nutrition204 mg
• Critical Aminos XT Blue Ice PopBodyTech15 mg
• Critical Aminos XT Fruit PunchBodyTech15 mg
• Critical Aminos XT GrapeBodyTech15 mg
• Critical Aminos XT PineappleBodyTech15 mg
• Critical Aminos XT Strawberry LemonadeThe Vitamin Shoppe15 mg
• Critical Aminos XT Sweet TeaBodyTech15 mg
• Critical Aminos XT WatermelonBodyTech15 mg
• Critical Aminos XT Watermelon PunchBodyTech · off the market15 mg
• Critical Liver SupportRenew Life · off the market300 mg
• Cruciferous ExtractsProCaps Laboratories30 mg
• Cruciferous Extracts Bulk PowderProCaps Laboratories30 mg
• Crush GO! BCAA + Vitamin C Citrus SunriseCrush · off the market1,000 mg
• Crush Go! BCAA + Vitamin C LemonberryCrush · off the market1,000 mg
• Crush Go! BCAA + Vitamin C Tropical PunchCrush · off the market1,000 mg
• Crush Go! BCAA + Vitamin C WatermelonCrush · off the market1,000 mg
• Crush It Kids MultiCore Nutritionals20 mg
• CSA Complete Spectrum AntioxidantViva Vitamins500 mg
• CTV Vitamin VSystemic Formulas Bio Nutriment1,000 mg
• CurazymeEnzymatic Therapy · off the market50 mg
• CurcuCalmNuMedica45 mg
• CurcumaxIntegrative Therapeutics50 mg
• CurcuMaxPlusBody Dynamics MaXzorb Nutrition · off the market60 mg
• CurcuMaxPlusBody Dynamics MaXzorbceuticals Nutrition60 mg
• Curcumin & TurmericPure Health Naturally · off the market80 mg
• Curcumin + C 400 mgMetabolic Maintenance250 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