Growing them seems to have very little to do with keeping faces warm, and a whole lot to do with appearance and style. But what about those of us who have trouble growing facial hair? While there are some tricks for encouraging overall hair growth, at the end of the day it all boils down to genetics. But most men actually have similar levels of testosterone.

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When it comes to keeping the hair on your head and your face full and strong, there are about as many treatments and remedies around as there are men in this country. Increasing your intake of biotin, a B vitamin found in bananas, eggs, and nuts, is one such suggestion. While typically marketed toward women, biotin supplements promoting beard growth have been flooding the market as well. A sampling of the beard-growth supplements on Amazon. To help you decide whether they're worth your time, we asked California-based holistic nutritionist Elissa Goodman to give us the rundown on biotin. Elissa Goodman: Biotin is a B vitamin involved in the production of energy. Available in supplement form and found naturally in a number of foods, biotin is sometimes referred to as vitamin H and aids in the metabolism of carbohydrates, fats, and proteins. Biotin is also essential for the formation of fatty acids and blood sugar also called glucose. Biotin is found naturally in foods such as legumes, carrots, mushrooms, cauliflower, nutritional yeast, liver, egg yolks not whites , sardines, and bananas, to name a few. Since biotin deficiency can lead to thinning of the hair, proponents claim that taking biotin supplements or washing your hair with biotin-enriched shampoo can thicken the hair and stimulate hair regrowth.
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Also, some contain caffeine because it may increase the number of androgen receptors 2. And many have herbal extracts like saw palmetto, horsetail, and Fo-Ti that stimulate hair growth and battle against dihydrotestosterone DHT that causes hair loss. But you might be able to overcome that to some extent with the best beard growth products 3.
Some men are even taking more intense actions, such as beard implant surgery. Although beard growth depends upon many factors such as genetics, health, age, and hormone levels, some supplements can enhance the beard growth. If someone has a deficiency in their diet, that may cause hair loss, even facial hair. According to research, men who have a balanced diet enriched with vitamins have good facial hair. Although genetics and hormones contribute, vitamins are equally essential. Several vitamins are necessary for body functioning as well as promoting facial hair growth.