Biotin para Dry Skin
D Pesquisa Existem apenas investigaciones preliminares (estudos laboratoriais, relatórios de casos).Biotin supports fatty acid synthesis in the stratum corneum. Deficiency causes dry skin, but evidence for supplementation in non-deficient individuals is limited.
Conclusão
Biotin supports fatty acid synthesis in the stratum corneum. Deficiency causes dry skin, but evidence for supplementation in non-deficient individuals is limited.
Key Study Findings
População: General population (skin health review)
Key Statistics
2
Estudos
100
Participantes
Positive
Nota
Referenced Papers
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Dosagens Comumente Utilizadas
- general:
- 30 mcg/day (AI)
- skinhairnails:
- 2,500-5,000 mcg/day
Limite superior: No established UL (water-soluble); may interfere with lab tests at high doses
Dosagens Estudadas em Pesquisas
| Dosagem | Duração | Efeito | N |
|---|---|---|---|
| Vitamin B complex (various B vitamins including niacinamide/NAD+ precursor) | -- | Positive | -- |
| F1: biotin 0.5%, caffeine 2.0%, niacinamide 2.0%; F2: finasteride 0.1%, minoxidil 1.0%, tretinoin 0. | 26 weeks | Positive | -- |
| not applicable | -- | Mixed | 180 |
| 14 nutritional compounds (vitamins, minerals, etc.) | -- | Positive | -- |
| None | -- | Mixed | -- |
| None | -- | Neutral | 144 |
Melhor horário: With meals for better absorption
Safety & Side Effects
Efeitos Colaterais Relatados
- ⚠ Generally well-tolerated
- ⚠ May cause acne breakouts at high doses (> 5,000 mcg)
- ⚠ Interferes with troponin and thyroid laboratory tests
Interações Conhecidas
- ● Laboratory test interference (troponin, thyroid panels, vitamin D assays)
- ● Anticonvulsants (carbamazepine, phenytoin may reduce biotin levels)
- ● Prolonged antibiotic use (may reduce gut biotin synthesis)
Ingestão máxima tolerável: No established UL (water-soluble); may interfere with lab tests at high doses
Consulte sempre o seu profissional de saúde antes de iniciar qualquer suplemento.Sempre consulte seu profissional de saúde antes de iniciar qualquer suplemento.
Frequently Asked Questions
Does Biotin help with Dry Skin?
How much Biotin should I take for Dry Skin?
Are there side effects of Biotin?
How strong is the evidence for Biotin and Dry Skin?
Related Evidence
Outros ingredientes para Dry Skin
Biotin para outras condições
References
- [1] Carolina Schettino Kegele et al.. Int J Pharm Compd. 2025. Personalized Compounded Hair Loss Treatments: A Compatibility Assessment of the TrichoConcept™ Vehicle Line. PubMed
- [2] Feiya Du et al.. Int J Vitam Nutr Res. 2025. Advanced Applications of Vitamin B Complex in Plastic and Cosmetic Surgery: Mechanisms and Therapeutic Benefits. doi:10.31083/IJVNR39087 PubMed
- [3] Irem Nur Durusu Turkoglu et al.. J Cosmet Dermatol. 2024. A comprehensive investigation of biochemical status in patients with telogen effluvium: Analysis of Hb, ferritin, vitamin B12, vitamin D, thyroid … doi:10.1111/jocd.16512 PubMed
- [4] Jacek Januszewski et al.. Medicina (Kaunas). 2023. Nutritional Supplements for Skin Health-A Review of What Should Be Chosen and Why. doi:10.3390/medicina60010068 PubMed
- [5] Katherine G Thompson et al.. J Am Acad Dermatol. 2021. Dietary supplements in dermatology: A review of the evidence for zinc, biotin, vitamin D, nicotinamide, and Polypodium. doi:10.1016/j.jaad.2020.04.123 PubMed
- [6] Thomas Hengl et al.. J Photochem Photobiol B. 2018. Cystine-thiamin-containing hair-growth formulation modulates the response to UV radiation in an in vitro model for growth-limiting conditions of human keratinocytes. doi:10.1016/j.jphotobiol.2018.09.005 PubMed
- [7] Ralph M Trüeb. Int J Trichology. 2016. Serum Biotin Levels in Women Complaining of Hair Loss. doi:10.4103/0974-7753.188040 PubMed
- [8] Thamer Mubki. J Cutan Med Surg. 2014. Use of Vitamins and Minerals in the Treatment of Hair Loss: A Cross-Sectional Survey among Dermatologists in Saudi Arabia. doi:10.2310/7750.2014.14008 PubMed
- [9] Michael W Cashman et al.. Clin Dermatol. 2010. Nutrition and nail disease. doi:10.1016/j.clindermatol.2010.03.037 PubMed
Aviso Legal da FDA: Estas declarações não foram avaliadas pela Food and Drug Administration. Os produtos e informações neste site não se destinam a diagnosticar, tratar, curar ou prevenir qualquer doença. As notas de evidência apresentadas são baseadas em nossa análise de pesquisas revisadas por pares publicadas e não constituem aconselhamento médico. Sempre consulte seu profissional de saúde antes de iniciar qualquer regime de suplementação.