Why does biotin make you itch

While often manageable, allergic reactions can become dangerous if not addressed by a medical professional. Depending on your dosage, high levels of biotin may cause false-positives or false-negatives for different lab tests, says Petrover, like thyroid hormone tests. And if your lab results are incorrect, it could contribute to a misdiagnosis , adds Okeke-Igbokwe. Your doctor may even recommend that you stop taking the vitamin for a while before having any lab tests done to make sure your results are accurate.

Check in with your doctor if you have upcoming tests to see when they recommend you stop your daily dose. Taking biotin may also wreak havoc on your digestive system: biotin side effects can include stomach troubles like nausea, cramping, and diarrhea , according to Elliott. Biotin can cause interactions with medications like anticonvulsants. It could lower their effectiveness or cause new side effects to pop up, like more stomach problems, says Kingsley.

Though many people take biotin with no issue, it's still important to talk to your doctor if you're experiencing anything out of the ordinary. That way they can provide you with safer, alternatives if need be.

Ardabilygazir, A. Cascorbi, I. Yang, M. A randomized, double-blind, placebo-controlled study of a novel pantothenic Acid-based dietary supplement in subjects with mild to moderate facial acne. This post was originally published on May 25, Research suggests that biotin can stimulate hair regrowth in people who have a clinical biotin deficiency.

There is no evidence to show biotin can improve hair growth in people without nutritional deficiencies. Yes, biotin can cause skin irritation and rashes in people who are sensitive to the B vitamin or other ingredients in the supplement.

Taking too much biotin can also cause a skin rash. Topical biotin can irritate the skin. People with sensitive skin should do a patch test on their inner arm before applying biotin to a larger area.

No, there is no evidence to suggest taking biotin supplements can lead to weight gain. In fact, biotin is sometimes touted as a weight-loss supplement. However, there is no research to confirm biotin has any effect on weight. Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life.

A review of the use of biotin for hair loss. Skin Appendage Disord. Biotin treatment mimicking Graves' disease. N Engl J Med. Updated March The golden egg: Nutritional value, bioactivities, and emerging benefits for human health.

Biotin deficiency enhances the inflammatory response of human dendritic cells. Am J Physiol Cell Physiol. Hair loss: Common causes and treatment. Am Fam Physician. Your Privacy Rights. To change or withdraw your consent choices for VerywellHealth.

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I Accept Show Purposes. Table of Contents View All. Table of Contents. Health Benefits. Possible Side Effects. Dosage, Preparation, and Safety. Biotin Deficiency. What to Look For. Recap Haircare products containing biotin may claim to treat brittle, thinning, or flat hair, but these claims are not supported by science. Frequently Asked Questions Does biotin help hair to grow faster?

Can biotin cause a rash? Does biotin cause weight gain? MyChart login. FastMed blog. What are biotin side effects? Wait, Biotin Has Side Effects? Common Biotin Side Effects Allergies. People who are allergic to vitamin B12 are commonly allergic to biotin, as well. An allergic reaction to biotin will often include nausea, a rash, or swelling of the throat and face. Some people have found that too much biotin can cause acne on the chin and jawline.

If you are pregnant or trying to become pregnant, high levels of biotin can increase your chances of miscarrying. Negative interactions.