Supplements

Vitamin C in supplements · page 287

13,741 supplements on the U.S. market list Vitamin C with an amount per serving. The official Tolerable Upper Intake Level for adults is 2,000 mg a day.

Tolerable Upper Intake Level (UL)

The highest daily amount that is unlikely to cause harm for almost all healthy people, from food, drinks and supplements combined.

Age	Men	Women	Pregnancy	Breastfeeding
0-6 months	—	—	—	—
7-12 months	—	—	—	—
1–3 years	400 mg	400 mg	—	—
4–8 years	650 mg	650 mg	—	—
9–13 years	1,200 mg	1,200 mg	—	—
14–18 years	1,800 mg	1,800 mg	1,800 mg	1,800 mg
19+ years	2,000 mg	2,000 mg	2,000 mg	2,000 mg

Source: NIH ODS Vitamin C Fact Sheet for Health Professionals, Table 3 (updated 2025-07-31).

Supplements with Vitamin C

13,741 shown · page 287 of 287

Cap C-500 500 mgCountry Life · Capsule500 mg per serving

Vitamin C CrystalsCountry Life · Other (e.g. tea bag)2,500 mg per serving

Esterified Vitamin CRoyal Guard · Tablet or Pill675 mg per serving

Hi-Potency C 500 mgNature's Measure · Tablet or Pill500 mg per serving

Pure Vitamin C Crystals 5000 mgVitamin World · Powder5,000 mg per serving

High Potency Vitamin C 500 mgSundown Naturals · Tablet or Pill500 mg per serving

Liquid Vitamin C With Wild Rose HipsVitamin World · Liquid300 mg per serving

C-Ester Ascorbyl Palmitate 500 mgVitamin World · Capsule212 mg per serving

Vitamin C 500 mgRadiance · Tablet or Pill500 mg per serving

Organic Vitamin C 120 mgVitamer Laboratories · Tablet or Pill120 mg per serving

C-Time 1500 With Rose HipsNature's Bounty · Other (e.g. tea bag)1,500 mg per serving

C-250 mgNature's Bounty · Tablet or Pill250 mg per serving

Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).