Supplements

Vitamin C in supplements · page 239

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 239 of 287

Reacta C 500 mgSolaray · Capsule500 mg per serving

C-1000 Caps With Bioflavonoids & RutinProtocol For Life Balance · Capsule1.0 Gram(s) per serving

Vitamin C 1,000 mgOL Olympian Labs · Tablet or Pill1.0 Gram(s) per serving

Ceramides for Skin Hydration 5 mgDr. Mercola · Capsule5.0 mg per serving

Achieve SulforaphaneNeurobiologix · Capsule100 mg per serving

Collagen Revitalizer ComplexNeurobiologix · Capsule60 mg per serving

Alive! Vitamin CNature's Way · Capsule500 mg per serving

Sambucus Immune LozengesNature's Way · Lozenge100 mg per serving

Daily Skin DefenseLife Extension · Capsule100 mg per serving

Glutathione, Cysteine & CLife Extension · Capsule500 mg per serving

Dynamic Liposomal Vitamin CStonehenge Health · Capsule1,500 mg per serving

Broccoli Seed ExtractThorne · Capsule100 mg per serving

Mega CoQ10 Ubiquinol 100 mgQunol · Softgel Capsule6.0 mg per serving

NO2 Black Muscle+Pump Sour Pixie PumpMRI Performance · Powder125 mg per serving

Buffered Vitamin C 1000Vinco · Capsule1,000 mg per serving

L-Carnitine 2000Body Attack · Capsule110 mg per serving

L-Carnitine 2000 Liquid Cherry FlavourBody Attack Sports Nutrition · Liquid80 mg per serving

Age-Less Skin FormulaBluebonnet · Capsule500 mg per serving

Alka-C ComplexEnergetix · Powder1,000 mg per serving

Maxi C-ComplexCountry Life · Tablet or Pill1,000 mg per serving

Liposomal Collagen Peptides+Codeage · Powder95 mg per serving

L-Carnitine 2000 Liquid Orange FlavourBody Attack Sports Nutrition · Liquid80 mg per serving

Histamine Digest 15,000 HDUOmneDiem · Capsule10 mg per serving

Histamine Digest 30,000 HDUOmneDiem · Capsule10 mg per serving

Adrenal Cocktail + Wholefood Vitamin CJigsaw Health · Powder400 mg per serving

OncoPLEX Plus MyrosinaseXYMOGEN · Capsule100 mg per serving

Liquid Collagen & Hyaluronic AcidBioCare · Liquid80 mg per serving

Liposomal Vitamin C 1000 mgMegaFood · Capsule1,000 mg per serving

CircuLegs with Horse ChestnutSolaray · Capsule150 mg per serving

Quercetin Bromelain & Vitamin CSolaray · Capsule1,235 mg per serving

C SynergySP Standard Process · Tablet or Pill100 mg per serving

Ultra GreenDouglas Laboratories · Powder12 mg per serving

Glu-Chon-MSMOL Olympian Labs · Tablet or Pill200 mg per serving

Super Cranberry 2Nature's Answer · Capsule40 mg per serving

CalciologyaProvenProduct · Tablet or Pill500 mg per serving

Glucosamine 1000 And MSM 1500 mg ComplexSundown Naturals · Tablet or Pill60 mg per serving

Revolution PCTFINAFLEX · Capsule25 mg per serving

ThreeLac CapsGlobal Health Trax · Capsule90 mg per serving

Organic Broken Cell Wall ChlorellaDr. Mercola · Tablet or Pill0.67 mg per serving

AlphaSorb-C 1000NOW · Tablet or Pill1.0 Gram(s) per serving

Calcium Chewable 350 mgThompson · Other (e.g. tea bag)20 ng per serving

Max Nitro 2MM Sports Nutrition · Capsule120 mg per serving

Quadra Cuts CompetitionMM Sports Nutrition · Capsule120 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).