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For the first installment, we tapped Susan C. Taylor, MD, the Bernett L. Johnson Jr. Endowed Professor of Dermatology and the vice chair for diversity, equity, and inclusion for the department of dermatology at the University of Pennsylvania’s Perelman School of Medicine. Her specialties include hair loss, cosmetic dermatology, hyperpigmentation, and skin of color. If you’re struggling with thinning or balding, definitely see an expert who can help you devise a plan to treat it, rather than shelling out your rent money on biotin supplements. Otherwise, if there is any improvement, the visible results would be subtle at best. "Smoking causes inflammation throughout the body, which makes so many things worse, and hair loss is no exception," says Colaco.
What side effects does biotin have?
Biotin is an essential vitamin that helps with the production of keratin (a protein that’s in charge of forming nails, skin and hair). Some research, including a 2016 study, has shown that a lack of biotin in your system can lead to hair loss. That’s because factors like genetics, your nutrition, stress and anxiety, and changes in your hormones, metabolism, or medications can all contribute to thinning hair. And the cause of your hair loss can help you determine the right ingredients for you—and, with that, the best hair growth serum. Therefore, “the best guidance is to ask questions and rely on trusted sources for scientific evidence and advice that is tailored to your individual need,” she instructs.
What is the effect of nutritional deficiency on hair?
Studies show that about a third of pregnant women in the U.S. have mild biotin deficiencies, but we need more research to understand why. Any information published on this website or by this brand is not intended as a substitute for medical advice, and you should not take any action before consulting with a healthcare professional. But if you’ve long been taking biotin for hair benefits and noticed absolutely zero difference in how long or thick it is, you might be wondering if it’s just a capsule full of lies. So, I turned to board-certified dermatologist Dhaval G. Bhanusali, MD, and trichologist Bridgette Hill with Paul Labrecque Salon and Skincare Spa for the facts.
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Some of the best foods for hair growth are foods with high nutritional value, like eggs, leafy greens, and fatty fish. Some proponents claim that biotin-containing products make your hair stronger and more luscious. However, science only supports biotin for hair growth if a confirmed biotin deficiency has caused your hair loss. If you’re experiencing alopecia, your doctor may recommend certain biotin supplements or a higher biotin-rich diet as a way to combat hair loss. They may recommend upping your dosage to 3 milligrams (or 3,000 mcg) a day. Though hair loss is a side effect of biotin deficiency, the majority of the population has adequate levels of the nutrient because it’s widely available in food and is produced in your body.
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7 best biotin shampoos to fight breakage and hair loss - Health shots
7 best biotin shampoos to fight breakage and hair loss.
Posted: Thu, 18 Apr 2024 07:00:00 GMT [source]
We may earn commission from links on this page, but we only recommend products we love. “Healthy food and proper hydration will help you feel and look your best,” says Barth. Don’t take more than the dosage listed on the package and stop taking biotin if you notice side effects.
Biotin Benefits
The FDA recommends that people inform their doctors at each visit of all supplements and doses they are taking. Though its use as a hair and nail growth supplement is prevalent, research demonstrating the efficacy of biotin is limited. In cases of acquired and inherited causes of biotin deficiency as well as pathologies, such as brittle nail syndrome or uncombable hair, biotin supplementation may be of benefit. However, we propose these cases are uncommon and that there is lack of sufficient evidence for supplementation in healthy individuals. While biotin has been popular for quite some time now, it’s simply not the hair-loss cure-all that so many supplement companies make it out to be. Take it from board-certified cosmetic dermatologist Robert Finney, MD, who sees patients struggling with hair loss every single day.
Despite these data, there have been no randomized, controlled trials to prove the efficacy of supplementation with biotin in normal, healthy individuals. Moreover, only 1 case in the literature has measured the levels of biotin in normal individuals that had complaints of hair loss. In this study of 541 women (age range between 9 and 92 years), 38% had low biotin levels [20]. Additionally, in vitro studies have shown that proliferation and differentiation of normal, nonpathologic follicular keratinocytes are not influenced by biotin [27].
Does Smoking Cause Biotin Deficiency?
Eating two or more raw egg whites a day for several months has been linked to biotin deficiency. Some people take supplements to strengthen their nails and hair, but there is a lack of evidence supporting this use. If you are experiencing hair loss or hair shedding, it may be due to another nutritional issue, like an iron deficiency, or an underlying health condition, such as a thyroid disorder. Taking biotin would not be effective for either of these conditions.
Biotin and hair growth
A protein in raw eggs called avidin can bind to biotin, preventing its absorption. Cooked eggs are not an issue because avidin is broken down when heated. Reviewers say the product really seems to help with their skin, but it’s unlikely that this is because of the biotin content. Additionally, the product is not third-party tested, but is produced in a cGMP facility.
In fact, it’s estimated that people living in the United States get about 35–70 mcg per day of biotin (2). If you want to make sure you’re getting enough biotin, the daily recommended biotin intake is 30 micrograms (mcg) for adults, according to the National Institute of Health. From color treatments to heat styling, a number of factors can lead to weakened, less-than-shiny hair.
But is biotin the magic solution to getting flowing locks, strong nails and glowing skin? Registered dietitian Courtney Barth, RD, explains the possible benefits of biotin and whether this nutrient could help you. A diet that is deficient in specific nutrients can lead to hair loss. This article looks at why people need biotin, the recommended intake, sources, and any possible health risks.
Biotin (vitamin B7) is a micronutrient vital to energy production, nervous system health, and other bodily functions. Found in a plethora of foods and available as a supplement, biotin is most well-known for strengthening hair and nails and combatting alopecia. Biotin has gained commercial popularity for its claimed benefits on healthy hair and nail growth. Despite its reputation, there is limited research to support the utility of biotin in healthy individuals. However, there is no clinical evidence to support its use for this purpose. In a different study, researchers found that children who experienced improved hair growth or quality after taking biotin supplements all had an underlying condition that caused a biotin deficiency (3).
Therefore, it’s likely that supplementing would only be warranted in those with a biotin deficiency, though more research is needed. In a 2019 review, researchers found that men with MAA had slightly lower levels of biotin than those with no hair loss. However, the difference wasn’t significant enough to indicate a direct link between biotin and MAA (11). Biotin deficiency is extremely rare since the nutrient is found in a wide array of foods and can be produced in your body by intestinal bacteria (4). Biotin is found in many foods, such as egg yolks, liver, cauliflower, mushrooms, soybeans, beans, lentils, almonds, nuts, and whole grains.
This includes protein sources like fatty fish and red meat and plant foods high in vitamins and other nutrients like spinach, seeds, and nuts. Hair growth is a complex process that hinges on several different factors. Key nutrients, like omega-3 fatty acids, biotin, and other vitamins, are important for growing hair.
A high concentration of biotin in samples can compromise diagnostic tests in which biotin is a key component. However, an overdose of biotin may cause insomnia, excessive thirst, and urination (13). In addition to food, the bacteria in your intestines can make biotin.
