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NOW Supplements Biotin
SCIENTIFIC SCORE
Possibly Effective
Based on 8 Researches
7.4
USERS' SCORE
Good
Based on 35 Reviews
8.5
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
Biotin
1 mg (1,000 mcg)
3333%

Top Medical Research Studies

7
Moderate benefits, high testing interference
High-dose biotin for multiple sclerosis: A systematic review and meta-analyses of randomized controlled trials.
Scores suggest moderate relevance
We evaluated the effectiveness of high-dose biotin in treating multiple sclerosis through a systematic review of randomized controlled trials.

Our findings suggest that patients could see some benefit from using high-dose biotin over a period of 12 to 15 months.

However, it's important to note that this potential upside comes with a notable downside: an increased likelihood of affecting laboratory test results.

Overall, the evidence remains moderately certain, indicating a cautious approach is necessary for those considering biotin treatment for multiple sclerosis.
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7
Biotin improves disability in PMS
Biomarkers of treatment response in patients with progressive multiple sclerosis treated with high-dose pharmaceutical-grade biotin (MD1003).
Moderate effectiveness in treatment response
We evaluated the effectiveness of high-dose pharmaceutical-grade biotin (MD1003) in enhancing treatment responses for patients with progressive multiple sclerosis (PMS). Over one year, we monitored 48 newly treated patients, using clinical assessments and brain volume metrics.

Encouragingly, 27% of patients experienced a notable reduction in disability scores. Additionally, improvements in brain and cervical spinal cord volume were observed in several patients. Yet, those with higher levels of neurofilament light chains or older age at MS onset appeared to have less positive responses to treatment.
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8
Dexamethasone delivery variations studied
The mode of dexamethasone decoration influences avidin-nucleic-acid-nano-assembly organ biodistribution and in vivo drug persistence.
High relevance in drug delivery
We explored how different linkers and lengths in biotin-dexamethasone conjugates affect drug delivery to the liver, particularly in autoimmune hepatitis. Through in vitro and in vivo studies, we noted that certain combinations enhance drug stability and uptake in liver cells.

Our findings suggest that tweaking the construction of these nanoparticles can meaningfully influence how effectively the drug works in the body. This could lead to better steroid formulations tailored for various medical needs.
Read More

Most Useful Reviews

9.5
Reduced hair fall
My hair stopped falling out just two days after starting biotin; previously, it was shedding in "packs", leaving me worried. Eventually, I noticed undercoat hairs started to grow. I was surprised that this vitamin is produced by gut bacteria, which explains why hair falls out more under stress. I did not find specific guidelines for daily use, but I take 5000 mg in three capsules. It's become essential in my routine, and I’m recommending it to others.
Read More
9.5
Stopped hair loss
Biotin has been a lifeline for my hair! Suffering from hair loss due to anaemia and genetics, I was devastated. Since I started using Biotin, I have experienced considerable hair growth and no further loss. I'm excited and ordering more today!
Read More
9.5
Dermatitis alleviated
My mother and I took just one course of Biotin, and the results have been impressive. My hair has stopped falling out, and I've seen significant improvement in its condition. The Biotin also helped alleviate my seborrheic dermatitis, which is a major relief. I'm ordering additional jars to continue this positive trend.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 8 Researches
7.4
  • All Researches
9
Biotin shows promise in BTD
Atypical presentation of biotinidase deficiency: masquerading neuromyelitis optica spectrum disorder.
Highly relevant clinical findings
We explored the unusual manifestations of biotinidase deficiency (BTD), showcasing three cases initially diagnosed as neuromyelitis optica spectrum disorder (NMOSD).

These patients exhibited severe symptoms such as quadriplegia and vision loss. Although some responded to immune therapy initially, they relapsed, while one did not improve at all.

Following further testing, it became clear that BTD was the true culprit. Remarkably, two patients experienced significant recovery after starting biotin supplementation, highlighting the potential of biotin in treating this deficiency.
Read More
9
Biotin and thiamine improve symptoms
Thiamine metabolism dysfunction syndrome 5 (THMD5) mimicking acute disseminated encephalomyelitis.
Relevant case study findings
We observed a fascinating case of a four-year-old girl diagnosed with Thiamine Metabolism Dysfunction Syndrome 5 and acute disseminated encephalomyelitis, who exhibited marked improvement after treatment with biotin and thiamine. Initially presenting with fever and agitation post-vaccination, genetic tests later revealed a pathogenic variant in the TPK1 gene. The girl's clinical status improved significantly, with resolution of autism spectrum disorder symptoms, supporting the role of early intervention. This case strengthens the evidence for biotin and thiamine in treating metabolic deficiencies related to TPK1.
Read More
8
Dexamethasone delivery variations studied
The mode of dexamethasone decoration influences avidin-nucleic-acid-nano-assembly organ biodistribution and in vivo drug persistence.
High relevance in drug delivery
We explored how different linkers and lengths in biotin-dexamethasone conjugates affect drug delivery to the liver, particularly in autoimmune hepatitis. Through in vitro and in vivo studies, we noted that certain combinations enhance drug stability and uptake in liver cells.

Our findings suggest that tweaking the construction of these nanoparticles can meaningfully influence how effectively the drug works in the body. This could lead to better steroid formulations tailored for various medical needs.
Read More
8
Biotin therapy improved symptoms
Biotinidase deficiency presenting as Neuromyelitis Optica Spectrum Disorder.
Biotinidase deficiency treatment insights
We explored two intriguing cases of biotinidase deficiency, a rare genetic disorder that can mimic conditions like Neuromyelitis Optica Spectrum Disorder. Initially, both patients received treatments for immune-mediated disorders, but when their symptoms worsened, further testing revealed biotinidase deficiency.

Remarkably, after starting biotin supplementation, both children showed significant improvement. This highlights the importance of recognizing atypical neurological signs, as early diagnosis and treatment of biotinidase deficiency can lead to effective intervention.
Read More
7
Biotin shows potential in neuropathies
High-dose pharmaceutical-grade biotin in patients with demyelinating neuropathies: a phase 2b open label, uncontrolled, pilot study.
Moderate relevance to treatment efficacy
We set out to examine the effects of high-dose pharmaceutical-grade biotin on patients with different types of demyelinating neuropathies.

In a pilot study involving 15 participants, we aimed to see if this treatment could improve various nerve function measures.

While the main goal of achieving a 10% improvement in specific nerve conduction measurements wasn’t reached, many participants showed better sensory and motor abilities.

Overall, these findings suggest that high-dose biotin might help in some ways, and the treatment was well-tolerated by participants.
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User Reviews

USERS' SCORE
Good
Based on 35 Reviews
8.5
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Reduced hair fall
My hair stopped falling out just two days after starting biotin; previously, it was shedding in "packs", leaving me worried. Eventually, I noticed undercoat hairs started to grow. I was surprised that this vitamin is produced by gut bacteria, which explains why hair falls out more under stress. I did not find specific guidelines for daily use, but I take 5000 mg in three capsules. It's become essential in my routine, and I’m recommending it to others.
Read More
9.5
Stopped hair loss
Biotin has been a lifeline for my hair! Suffering from hair loss due to anaemia and genetics, I was devastated. Since I started using Biotin, I have experienced considerable hair growth and no further loss. I'm excited and ordering more today!
9.5
Dermatitis alleviated
My mother and I took just one course of Biotin, and the results have been impressive. My hair has stopped falling out, and I've seen significant improvement in its condition. The Biotin also helped alleviate my seborrheic dermatitis, which is a major relief. I'm ordering additional jars to continue this positive trend.
Read More
9.5
No side effects
This supplement effectively helped my hair grow, and I've noticed no side effects! I'm planning to order again for sure.
9.5
Hair regrowth observed
After giving birth, I noticed excessive hair loss after three months. I decided to take biotin to improve my hair and skin. I’ve never had thick eyebrows or eyelashes, but I hoped for growth. With 1000 mcg daily, I realised that hair began to grow back within a week, and hair loss stopped after two weeks. My eyelashes seem more resilient, as do my eyebrows. I will continue taking it for health and beauty!
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