The amount of biotin suggested for hair growth usually ranges between 100 - 1,000 micrograms (mcg) daily, but this number varies based on your body's reaction to biotin.
Mayo Clinic states that 10,000 mcg is a safe dose, as no adverse side effects have been noted to date. Reassuringly, even “mega doses” of 300,000 mcg found no side effects in neurological research.
Most brands with biotin for hair growth recommend taking 2,000-5,000 mcg (2-5 milligrams) of biotin each day (many supplements are sold under the name Biotin 5000 which indicates a 5,000 mcg (5 mg) dose), but this is beyond more than doctors recommend.
While biotin is added to some shampoos that claim to reduce hair loss, there is no evidence that this works. Consuming foods rich in healthy vitamins and minerals will help with overall hair health. The best natural sources of biotin are meat, eggs, fish, seeds, nuts, and vegetables.
Biotin is safe to take — even at high doses. But taking too much can sometimes cause side effects like stomach ache, trouble sleeping, and excessive thirst. Talk to your healthcare provider if you think you've taken too much biotin. You can also contact Poison Control if you're having trouble reaching your provider.
Biotin is generally safe even at high dosages. Side effects of biotin are minimal and easily reversed because excess biotin is easily passed by the body through urine. We recommend taking 500 mcg-5,000 mcg of biotin per day to support healthy hair, skin, and nails.
Most of the websites touting biotin for hair growth recommend taking 2-5 milligrams (2,000-5,000 mcg) of biotin in supplement form each day, and many supplements are sold under the name Biotin 5000, indicating a 5000 mcg (5 mg) size.
How fast does biotin work for hair growth? Research pertaining to how quickly vitamins work in the body is limited, however, we have found that some begin to see and experience benefits approximately 30 days after you start taking biotin. It may take up to 90 days or longer for some individuals.
Can Alopecia Be Reversed? Whether your hair loss is caused by hormones or an autoimmune disorder, regrowing your hair by using new medications and modifying your diet can be possible as long as you start treatment early.
The normal recommended biotin dosage for adults is 30 to 100 micrograms (mcg) per day. But there's no evidence of high levels of biotin being harmful or causing toxicity, which is why you'll commonly see biotin supplements containing 5,000 to 10,000 mcg.
Proponents of biotin often recommend 2-5 mg. (2,000 to 5,000 mcg.) to achieve desired results. It is important that consumers know exactly how much biotin they are taking and whether the supplement is a high-quality product.
Adults and teenagers—30 to 100 micrograms (mcg) per day. Children 7 to 10 years of age—30 mcg per day. Children 4 to 6 years of age—25 mcg per day. Children birth to 3 years of age—10 to 20 mcg per day.
Although the evidence to support biotin alone for hair growth is weak and limited, the evidence is slightly stronger for preventing hair loss. Still, biotin supplements are only likely to prevent hair loss and promote hair growth in people with a biotin deficiency.
Excess in the body is rare, and since biotin is a water-soluble vitamin, it is excreted in the urine when in excess. Signs and symptoms of biotin overdose may include and are not limited to insomnia, excessive thirst, and urination.
Can You Take Too Much Biotin? Not really! Even at higher dosages, excess biotin has not been shown to cause any harm. Biotin has been used in clinical studies and in the clinical setting in doses as high as 5 mg/day (5,000 mcg/day) for up to two years.
If you are experiencing thinning or balding, our Bosley experts recommend washing no more than three times a week.
When taken by mouth: Biotin is likely safe for most people when taken in doses up to 300 mg daily for up to 6 months. But it is more commonly used in lower doses of 2.5 mg daily. When applied to the skin: Biotin is likely safe for most people when applied in cosmetic products that contain up to 0.6% biotin.
If you find yourself browsing the hair care aisle or searching the internet for hair treatments, one thing that might pop up is biotin. This B vitamin has a reputation for helping your locks stay healthy, and it's frequently recommended by dermatologists to help with hair loss.
We observed that long-term administration of biotin decreased systolic blood pressure in the SHRSP strain; also, a single dose of biotin immediately decreased systolic blood pressure in this strain.
While folic acid is essential in supporting healthy hair growth, it is not the only vitamin or supplement that benefits both the hair and skin. Rather, it's best to choose hair care supplements that include additional hair-boosting ingredients, such as B complex, vitamin B12 and biotin.