Vitamin C

Vitamin C supplements in every common format: tablets, capsules, powders, chewables, gummies and oral sprays. The range covers standard ascorbic acid, buffered forms such as calcium ascorbate, liposomal vitamin C, and formulas that add bioflavonoids, rose hips, zinc or collagen.

Vitamin C contributes to the normal function of the immune system and to the reduction of tiredness and fatigue. Vitamin C also contributes to normal collagen formation for the normal function of skin, which is why it often appears alongside collagen. Strengths vary widely, from low-dose chewables to 1000 mg tablets and powders measured by the scoop, so compare the milligrams per serving rather than per tablet. Buffered vitamin C is less acidic than ascorbic acid; powders make it easy to adjust the dose and mix into drinks. Brands include NOW Foods, Doctor's Best, BioTechUSA, OstroVit, Osavi, Nordic Naturals and Cytoplan. See our vitamin C guide for more on forms and doses.

How to choose vitamin C

  • Strength: check milligrams per serving and servings per day.
  • Form: ascorbic acid, buffered (ascorbate) or liposomal.
  • Format: tablets and capsules for convenience; powders for flexible doses; gummies and chewables if you dislike swallowing tablets.

Related: Zinc · Vitamins · Collagen & Beauty · Vitamins & Health

Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

FAQs

What does vitamin C do?

Vitamin C contributes to the normal function of the immune system, to the reduction of tiredness and fatigue, and to normal collagen formation for the normal function of skin.

Is 1000 mg of vitamin C too much?

Many supplements provide 1000 mg per serving. Follow the directions on the label and do not exceed the stated daily serving; if you are unsure, ask a pharmacist or doctor.

What is buffered vitamin C?

Buffered vitamin C is a mineral salt of ascorbic acid, such as calcium ascorbate. It is less acidic than ascorbic acid.

What is liposomal vitamin C?

Liposomal products enclose vitamin C in tiny fat-based particles called liposomes. Compare the vitamin C per serving on the label.