Fulvic acid is group of chemicals formed when plants and animals break down. It is found in the humus (organic matter) part of soil and peat, and is also found in streams and lakes.

People use fulvic acid for conditions such as allergies, eczema (atopic dermatitis), cancer, Alzheimer disease, and others, but there is no good scientific evidence to support these uses.

How does it work ?

Fulvic acid might block reactions in the body that cause allergy symptoms. It might also interrupt steps involved in the worsening of brain disorders such as Alzheimer disease. Additionally, fulvic acid might reduce swelling and prevent or slow the growth of cancer.

Uses & Effectiveness ?

Insufficient Evidence for

  • Hay fever. Early research shows that taking fulvic acid by mouth for 7 days might help reduce allergic reactions in people with allergies to pollen.
  • Eczema (atopic dermatitis). Early research shows that applying fulvic acid 5% to the skin twice daily for 4 weeks might improve some symptoms of eczema.
  • Alzheimer disease.
  • Cancer.
  • Fatigue.
  • Lead toxicity.
  • Infection of the airways.
  • Other conditions.
More evidence is needed to rate fulvic acid for these uses.

Side Effects

When taken by mouth: Fulvic acid is POSSIBLY SAFE when taken for up to 7 days. Some people have a headache or sore throat after taking fulvic acid.

When applied to the skin: Fulvic acid is POSSIBLY SAFE when used for up to 4 weeks.

Special Precautions and Warnings

When taken by mouth: Fulvic acid is POSSIBLY SAFE when taken for up to 7 days. Some people have a headache or sore throat after taking fulvic acid.

When applied to the skin: Fulvic acid is POSSIBLY SAFE when used for up to 4 weeks. Pregnancy and breast-feeding: There isn't enough reliable information to know if fulvic acid is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.

Autoimmune diseases: Fulvic acid might increase the activity of the immune system. It might therefore worsen some autoimmune diseases, such as multiple sclerosis, systemic lupus erythematosus (SLE), and rheumatoid arthritis (RA). People with these conditions should be cautious or avoid fulvic acid altogether.

Kashin-Beck Disease: There is some concern that fulvic acid in drinking water might increase the risk of developing Kashin-Beck bone disease. It is thought that the risk is greatest in regions where people do not receive enough selenium in their diet.

Interactions ?

    Moderate Interaction

    Be cautious with this combination

  • Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs) interacts with FULVIC ACID

    Some medications are taken to slow blood clotting. Fulvic acid might increase how quickly blood clots. Taking fulvic acid with these medications might reduce their effects and increase the risk of blood clots.

    Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.

  • Medications that decrease the immune system (Immunosuppressants) interacts with FULVIC ACID

    Fulvic acid can stimulate the immune system. In theory, taking fulvic acid might decrease the effects of medications that decrease the immune system.

    Some medications that decrease the immune system include azathioprine (Imuran), basiliximab (Simulect), cyclosporine (Neoral, Sandimmune), daclizumab (Zenapax), muromonab-CD3 (OKT3, Orthoclone OKT3), mycophenolate (CellCept), tacrolimus (FK506, Prograf), sirolimus (Rapamune), prednisone (Deltasone, Orasone), and other corticosteroids (glucocorticoids).

  • Thyroid hormone interacts with FULVIC ACID

    Fulvic acid affects thyroid hormone levels. In theory, taking fulvic acid with thyroid hormone might interfere with therapy to make thyroid function normal. People receiving thyroid hormone should use fulvic acid cautiously.


The appropriate dose of fulvic acid depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses fulvic acid (in children/in adults). Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.
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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2020.