Dr.pharmacist
NOW Foods Liposomal Vitamin C
Pharmacist Safety Review

Is NOW Foods Liposomal Vitamin C Safe?

Reviewed by Younghun ChoLast reviewed April 20, 2026

Generally yes, NOW Foods Liposomal Vitamin C is considered safe for most healthy adults when taken as directed. This form of vitamin C is designed for enhanced absorption and is often gentler on the stomach compared to standard ascorbic acid, reducing the likelihood of digestive upset.

Who Should Avoid or Consult First

  • People with kidney disease or a history of kidney stones, as high doses of vitamin C can increase oxalate excretion.
  • Individuals with hemochromatosis or other iron overload disorders, as vitamin C enhances iron absorption.
  • Those undergoing chemotherapy or radiation therapy should consult their oncologist before taking high-dose vitamin C.

Common Side Effects

  • Diarrhea — more common with very high doses (above 2000 mg daily).
  • Nausea or stomach cramps — typically mild and less frequent with liposomal forms.
  • Headache — rare.

Interactions to Watch For

Blood thinners (e.g., Warfarin)

Very high doses of vitamin C might interfere with the effectiveness of blood thinners, potentially increasing bleeding risk.

Chemotherapy drugs

High doses of antioxidants like vitamin C might theoretically interfere with the action of some chemotherapy drugs; consult your oncologist.

Iron supplements

Vitamin C significantly increases the absorption of iron, which can be beneficial for iron deficiency but problematic for those with iron overload conditions.

People Also Ask

Can I take Liposomal Vitamin C every day?

Yes, it is generally safe to take Liposomal Vitamin C daily as directed on the product label. Regular intake helps maintain consistent vitamin C levels in your body, supporting immune function and antioxidant protection.

Is Liposomal Vitamin C safe during pregnancy?

While vitamin C is essential during pregnancy, it's best to consult your doctor before taking any new supplements, including Liposomal Vitamin C, to ensure the dosage is appropriate for your specific needs.

What happens if I take too much Vitamin C?

Taking excessively high doses (typically over 2000 mg) of vitamin C can lead to side effects like diarrhea, nausea, and stomach cramps. Your body will excrete any excess vitamin C through urine.

Can children take NOW Liposomal Vitamin C?

This product is generally formulated for adults. For children, it's important to consult a pediatrician to determine the appropriate dosage and form of vitamin C, as their needs differ from adults.

Bottom Line

NOW Foods Liposomal Vitamin C is a well-absorbed and generally safe supplement for most adults looking to boost their vitamin C intake. Always follow the recommended dosage and consult a healthcare professional if you have underlying health conditions or are taking other medications.

References

  1. 1.
    FDA Drug Label — DISCOUNT DRUG MART

    FDA DailyMed: DISCOUNT DRUG MART · FDA

  2. 2.
    Vitamin C and Immune Function.

    Carr AC, Maggini S, Nutrients, 2017 · PubMed

  3. 3.
    Vitamin C for preventing and treating the common cold.

    Hemilä H, Chalker E, The Cochrane database of systematic reviews, 2013 · PubMed

  4. 4.
    The Roles of Vitamin C in Skin Health.

    Pullar JM, Carr AC, Vissers MCM, Nutrients, 2017 · PubMed

  5. 5.
    Vitamin C: the known and the unknown and Goldilocks.

    Padayatty SJ, Levine M, Oral diseases, 2016 · PubMed

  6. 6.

Want the full pharmacist analysis?

See full review of NOW Foods Liposomal Vitamin C

Educational content based on FDA labeling, published research, and pharmacist review. Not a substitute for individualized medical advice.