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Your Biotin Might Not Be Working, Unfortunately

If you’re in the market for Rapunzel-length hair, then you’re surely familiar with biotin—there are biotin-infused shampoos, biotin scalp treatments, and the ever-popular biotin supplements...quite honestly, they're hard to avoid. And they're intriguing as hell, all promising substantial hair growth that's thick and healthy.

Given its ubiquity, seems like a ripe time for a definition: Biotin (also known as vitamin B7 or vitamin H) belongs to the group of B vitamins. It’s found in foods like egg yolks, salmon, and leafy greens, and it’s also produced in our bodies from intestinal bacteria. Our bodies don’t actually require much biotin to get by, but since it plays a role in cell growth,…

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 Your Biotin Might Not Be Working, Unfortunately

There's a catch, though—the research on the stuff is patchy at best. A few super small-scale studies have shown biotin’s positive effects on strengthening nails, but there’s basically nothing to suggest that it promotes hair growth in healthy people.

5 healthy benefits of this B vitamin

From preventing hair loss to regulating blood sugar, find out how biotin can help you maintain optimal health.

6 Best Biotin Pills For Hair Growth That Really Work

If you are concerned about thinning hair, don’t go out and spend a lot of money on hair restoration products until you have done some research about biotin, which can help to prevent the thinning of your hair. To help get you started on your biotin research journey, we are going to take a look at the six best biotin pills to prevent hair loss.

Biotin is generally considered both safe and well-tolerated, with no adverse effects reported when taken at dosages of up to 10 mg/day (although some question has been raised about the safety of high dosage biotin). A number of drugs, including antibiotics, can cause biotin deficiency. Biotin use may also cause inaccuracies with certain thyroid lab tests.

Linus Pauling Institute

Biotin is a water-soluble vitamin that is generally classified as a B-complex vitamin. After the initial discovery of biotin, nearly 40 years of research were required to establish it as a vitamin. Biotin is required by all organisms but can be synthesized only by bacteria, yeasts, molds, algae, and some plant species.


Vitamin B7, also called biotin, is a vital part of a healthy metabolism and creating important enzymes. Biotin is often used to strengthen hair and nails, and is also called Vitamin H (for hair).


A lack of biotin is rare. However, if it occurs it may lead to skin rash, loss of hair, high blood levels of cholesterol, and heart problems. Some conditions may increase your need for biotin. These include: • Genetic disorder of biotin deficiency • Seborrheic dermatitis in infants • Surgical removal of the stomach


Biotin can effectively treat and prevent biotin deficiency. But biotin deficiency is very rare and taking supplements is not usually necessary. There is some scientific evidence that it might help for brittle finger and toenails. There isn't enough information to know if biotin is effective for the other conditions people use it for, including: malnutrition, hair loss, diabetes, and others.


Biotin is a vitamin that is found in small amounts in numerous foods. Biotin is used for preventing and treating biotin deficiency associated with pregnancy, long-term tube feeding, malnutrition, and rapid weight loss. It is also used orally for hair loss, brittle nails, skin rash in infants (seborrheic dermatitis), diabetes, and mild depression.

Biotin is a B-complex vitamin that has been identified as a necessary nutrient for a century, but has only begun to be understood in the past two decades. It has also been previously referred to as coenzyme R, vitamin H, and vitamin B7, with the different names attesting to the confusion surrounding its role in normal metabolism.

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