Solgar Solgar Biotin

Supplement Facts

Serving Size: 1 Vegetable Capsule

Amount Per Serving

%DV

Biotin

5,000 mcg

16,667%

Calcium (as dicalcium phosphate)

148 mg

11%

Phosphorous (as dicalcium phosphate)

115 mg

The product is found useful for the following medical conditions

We investigated the effects of biotin on immune responses and inflammatory conditions. Biotin, a necessary vitamin, plays a role in various metabolic pathways related to inflammation. While previous studies have suggested that biotin deficiency can lead to skin inflammation and immune issues, our findings highlight the potential of biotin supplementation in addressing metal allergies in animal models. However, significant improvements in allergy symptoms were not conclusively shown. Thus, while biotin may be beneficial, more research is needed to fully understand its impact on allergies.

Better allergy response

Most Useful Review

1 people found this helpful

とても素晴らしい！ I've just started this product and my skin is in great shape. Previous biotin supplements caused reactions due to my allergy-prone constitution, but this one seems to work better. I plan to continue using it as I expect benefits for my skin, hair, and nails. The product size is easier to consume than expected.

Updated: Mar 2026

Attention Deficit Hyperactivity Disorder details

Highly effective supplement

Most Useful Review

4 people found this helpful

This biotin is my favourite! I noticed a difference after just two weeks of taking 5000 μg daily with meals. I've purchased a large jar for the second time and plan to continue for 100 days before taking a break for three months. Please support this honest review with a like.

Updated: Mar 2026

Celiac details

Beneficial effects noted

Most Useful Review

Taking Biotin benefits my body significantly: it reduces hair loss, restores thickness and shine, strengthens nails, and improves skin appearance while alleviating inflammation and dryness. The gel capsules are suitable for vegetarians and those following gluten-free diets. The absence of gluten is confirmed, and the drug is GMO-free.

Updated: Mar 2026

Acne details

SCIENTIFIC SCORE

Possibly Effective

Based on 5 Researches

Biotin's potential in acne treatment

Piraccini BM, Berardesca E, Fabbrocini G, Micali G, Tosti A. Biotin: overview of the treatment of diseases of cutaneous appendages and of hyperseborrhea. G Ital Dermatol Venereol. 2019;154:557. doi:10.23736/S0392-0488.19.06434-4

We explored the effectiveness of biotin as a treatment for acne, focusing on its potential benefits for those experiencing skin issues linked to biotin deficiency. Biotin is a vitamin that, when levels are low, can contribute to hair loss and skin disorders like seborrheic dermatitis.

In our overview, we noted that while biotin may help improve hair loss, its impact on acne treatment shows promise primarily when combined with other therapies, particularly topical retinoids. These treatments address not just acne but also flaking and irritation commonly associated with skin conditions.

Overall, we found that biotin's role in managing acne is intriguing, especially given its excellent tolerability and safety, even at high doses. However, we emphasize that biotin should be taken under medical supervision following a proper diagnosis.

Clearer skin noted

Most Useful Review

This supplement has a great effect on my facial skin and scalp, as well as my overall well-being. It has genuinely helped with my hair loss, particularly because I lacked biotin. I have found it effective with routine use, improving both hair loss and brittle nails without any side effects. Biotin is essential for our diets, and while it’s best sourced from foods like meat, cheese, and mushrooms, Solgar Biotin is an excellent supplement. After switching to Solgar, I observed that my hair loss reduced significantly, my nails became normal again, and my face cleared up with far fewer occurrences of acne and rashes.

Updated: Mar 2026

Depression details

Supports mental health

Most Useful Review

Biotin 5000, an essential B vitamin, is key for healthy hair, skin, and joints. It supports hair health, strengthens nails, and promotes skin vitality. This B vitamin also plays a significant role in alleviating stress and depression through its impact on the nervous system.

Updated: Mar 2026

Hair Loss details

SCIENTIFIC SCORE

Possibly Effective

Based on 22 Researches

Biotin restores hair growth post-deficiency

Khalidi N, Wesley JR, Thoene JG, Whitehouse WM, Baker WL. Biotin deficiency in a patient with short bowel syndrome during home parenteral nutrition. JPEN J Parenter Enteral Nutr. 1984;8:311.

We encountered a case of a woman suffering from short bowel syndrome, who faced significant hair loss due to biotin deficiency while on home parenteral nutrition. After starting oral biotin supplementation of 10 mg/day for three weeks, we observed that her serum biotin levels increased, leading to noticeable new hair growth and resolution of other symptoms. Further intravenous biotin treatment maintained her on multivitamins that include biotin, preventing any future deficiency symptoms. This case highlights the importance of addressing biotin levels for hair health and overall well-being.

Effective against hair loss

Most Useful Review

39 people found this helpful

The best recommendation if you’re dealing with serious hair loss issues. The dosage beautifully supports nail health, while my skin feels silky and supple. I witnessed marked improvements by the second month, and I continued for the third to solidify these health benefits. These vitamins are considered the best globally, promising a 100% result. Investing in them is worthwhile, and I advise against experimenting with cheaper alternatives. Was it helpful? Definitely!

Updated: Mar 2026

Cold Sores details

Significant improvement

Most Useful Review

1 people found this helpful

He is someone who suffers from cold sores. I watched a YouTuber living in Japan who also has them and is being treated with biotin by a dermatologist. I have noticed significant improvement while taking biotin, as it soothes the itching associated with cold sores.

Updated: Mar 2025

Autoimmune Disorder details

SCIENTIFIC SCORE

Possibly Effective

Based on 8 Researches

Moderate benefits, high testing interference

Espiritu AI, Remalante-Rayco PPM. High-dose biotin for multiple sclerosis: A systematic review and meta-analyses of randomized controlled trials. Mult Scler Relat Disord. 2021;55:103159. doi:10.1016/j.msard.2021.103159

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.

7.5

Improved skin condition

Most Useful Review

1 people found this helpful

I purchased these vitamins on my dermatologist's recommendation for seborrheic dermatitis. After completing a course of biotin, my skin irritation decreased significantly, and my skin appears much better now. I plan to order more.

Updated: Mar 2026

Rash details

SCIENTIFIC SCORE

Moderately Effective

Based on 16 Researches

Biotin effectively improves rash symptoms

Kim SW, Lee HJ, Choi N, Kim EK, Ko JM. Dramatic Clinical Improvement With Biotin Mega-Dose Therapy in a Neonate With Holocarboxylase Synthetase Deficiency. Mol Genet Genomic Med. 2024;12:e70002. doi:10.1002/mgg3.70002

We explored the effects of biotin therapy on a neonate suffering from a rare metabolic disorder known as holocarboxylase synthetase deficiency. After initiating a biotin mega-dose regimen, we observed impressive results, with the baby showing notable clinical improvement just one day later.

Within six days, mechanical ventilation was no longer necessary, and the child maintained stable health through follow-ups. This case underscores the importance of early genetic testing and how effective biotin can be in treating specific metabolic issues.

Cleared rashes

Most Useful Review

These vitamins are my favourite. After childbirth, my hair began to fall out, but upon starting these vitamins, everything appeared to restore itself; my skin is clearer, and the rashes have vanished. I cannot comment on nail growth, as I’ve had no issues in that area.