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

• Effer-C Lemon-LimeNOW1,000 mg
• Effer-C Lemon-Lime Effervescent Drink MixNOW1,000 mg
• Effer-C OrangeNOW · off the market1,000 mg
• Effer-C OrangeNOW Foods1,000 mg
• Effer-C Orange Effervescent Drink MixNOW1,000 mg
• Effervescent Energy Lava LimeEruption · off the market30 mg
• Effervescent Glucosamine & ChondroitinBronson Laboratories1,000 mg
• Effervescent Vitamin C 1000 mg Natural Orange FlavorSundown Naturals1,000 mg
• Effervescent Vitamin C 1000 mg Orange FlavoredOrzax1,000 mg as transcribed, likely a slip
• Effervescent Vitamin C Magnesium CrystalsLife Extension4,500 mg as transcribed, likely a slip
• Effervescent Vitamin C Orange Flavored365 Everyday Value1,000 mg
• Efficient C + Cranberry BenefitsProCaps Laboratories500 mg
• Efficient C Mixed BerryProCaps Laboratories500 mg
• Effinex with CHBC Health Solutions100 mg
• EFS Electrolyte Fuel System Mild Grape1st Endurance120 mg
• EFS Electrolyte Fuel System Orange Splash1st Endurance120 mg
• Egg White Protein ChocolateMRM · off the marketno amount
• Egg White Protein French VanillaMRM · off the marketno amount
• Eggwhite ProteinNOW Sports · off the marketin a blend
• Eggwhite Protein Rich ChocolateNOW Sports · off the marketin a blend
• Eggwhite Protein Vanilla CremeNOW Sports · off the marketin a blend
• EhbIntegrative Therapeutics750 mg
• EinsteinLove Me · off the market125 mg
• EinsteinLove Me Nutrition125 mg
• Elan Vital MultipleSource Naturals2,280 mg
• ElastiJoint Fruit PunchLabrada990 mg
• ElastiJoint Fruit Punch FlavorLabrada Nutrition · off the market990 mg
• ElastiJoint Fruit Punch FlavorLabrada990 mg
• ElastiJoint Grape FlavorLabrada Nutrition · off the market990 mg
• ElastiJoint Grape FlavorLabrada990 mg
• ElastiJoint OrangeLabrada990 mg
• ElastiJoint Orange FlavorLabrada Nutrition · off the market990 mg
• ElastiJoint Orange FlavorLabrada · off the market990 mg
• Elbow GreaseAxe & Sledge Supplements150 mg
• Elder-CNorth American Herb & Spice50 mg
• Elder-C 500 mgNorth American Herb & Spice · off the market50 mg
• Elder-MuneZHOU90 mg
• ElderberrySmarterVitamins30 mg
• ElderberryWholly You100 mg
• ElderberryGarden of Herbz1,000 mg
• ElderberryEmergen-C400 mg
• Elderberry & Echinacea Gummies Natural Raspberry FlavorViva Vitamins70 mg
• Elderberry & SleepGarden of Life MyKind Organics36 mg
• Elderberry & ZincNOW150 mg
• Elderberry & ZincLuckyHerbs150 mg
• Elderberry +Leading Edge Health200 mg
• Elderberry + 5000 mgNutraChamps100 mg
• Elderberry + Honey Total Immune Support Natural Fruit FlavorZarbee's Naturals450 mg
• Elderberry + Immune with Echinacea & Vitamin CPuritan's Pride200 mg as transcribed, likely a slip
• Elderberry + Immunity Earnest ElderberryLlama Naturals18 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