Vitamin E para UV Protection (Internal Photoprotection)
C Evidências Evidência limitada de estudos de pequena dimensão, mas existem alguns sinais positivos.Research suggests oral vitamin E may work synergistically with vitamin C to reduce UV-induced erythema and lipid peroxidation. Moderate evidence as a standalone photoprotective agent.
Conclusão
Research suggests oral vitamin E may work synergistically with vitamin C to reduce UV-induced erythema and lipid peroxidation. Moderate evidence as a standalone photoprotective agent.
Key Study Findings
População: Human hair follicle dermal papilla cells (in vitro)
População: General population (skin health review)
População: Aging population
População: None
População: Patients with atopic dermatitis
População: Adults and children with established atopic eczema
Key Statistics
8
Estudos
600
Participantes
Positive
Nota
Referenced Papers
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Dosagens Comumente Utilizadas
- general:
- 15 mg (22.4 IU)/day (RDA)
- skinhealth:
- 15-400 IU/day
Limite superior: 1,000 mg/day (1,500 IU natural / 1,100 IU synthetic)
Dosagens Estudadas em Pesquisas
| Dosagem | Duração | Efeito | N |
|---|---|---|---|
| None | -- | Positive | -- |
| 14 nutritional compounds (vitamins, minerals, etc.) | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Neutral | -- |
| Multivitamin/mineral supplements | -- | Mixed | -- |
| Arginine, glutamine, vitamin C, zinc | -- | Positive | -- |
Melhor horário: With meals containing fat for better absorption
Safety & Side Effects
Efeitos Colaterais Relatados
- ⚠ Generally well-tolerated at recommended doses
- ⚠ Increased bleeding risk at high doses (> 400 IU/day)
- ⚠ Nausea and diarrhea (rare)
Interações Conhecidas
- ● Anticoagulants and antiplatelet drugs (may increase bleeding risk)
- ● Statins and niacin (may reduce HDL-raising benefit)
- ● Chemotherapy and radiation (antioxidant interference — consult oncologist)
Ingestão máxima tolerável: 1,000 mg/day (1,500 IU natural / 1,100 IU synthetic)
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 Vitamin E help with UV Protection (Internal Photoprotection)?
How much Vitamin E should I take for UV Protection (Internal Photoprotection)?
Are there side effects of Vitamin E?
How strong is the evidence for Vitamin E and UV Protection (Internal Photoprotection)?
Related Evidence
Outros ingredientes para UV Protection (Internal Photoprotection)
Vitamin E para outras condições
References
- [1] Anurak Muangsanguan et al.. Foods. 2025. Anti-Hair Loss Potential of Perilla Seed Extracts: In Vitro Molecular Insights from Supercritical Fluid Extraction. doi:10.3390/foods14152583 PubMed
- [2] 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
- [3] Aqin Yan et al.. Int J Pharm. 2023. Co-delivery of minoxidil and tocopherol acetate ethosomes to reshape the hair Follicular Microenvironment and promote hair regeneration in androgenetic alopecia. doi:10.1016/j.ijpharm.2023.123498 PubMed
- [4] Geir Bjørklund et al.. Molecules. 2022. The Role of Astaxanthin as a Nutraceutical in Health and Age-Related Conditions. doi:10.3390/molecules27217167 PubMed
- [5] Eiji Yamashita. Adv Exp Med Biol. 2021. Extensive Bioactivity of Astaxanthin from Haematococcus pluvialis in Human. doi:10.1007/978-981-15-7360-6_23 PubMed
- [6] N Sivaranjani et al.. J Clin Diagn Res. 2013. Role of reactive oxygen species and antioxidants in atopic dermatitis. doi:10.7860/JCDR/2013/6635.3732 PubMed
- [7] Fiona J Bath-Hextall et al.. Cochrane Database Syst Rev. 2012. Dietary supplements for established atopic eczema. doi:10.1002/14651858.CD005205.pub3 PubMed
- [8] Han-Yo Huang et al.. Evid Rep Technol Assess (Full Rep). 2006. Multivitamin/mineral supplements and prevention of chronic disease. PubMed
- [9] Renata Strumia. Am J Clin Dermatol. 2005. Dermatologic signs in patients with eating disorders. doi:10.2165/00128071-200506030-00003 PubMed
- [10] Douglas MacKay et al.. Altern Med Rev. 2003. Nutritional support for wound healing. PubMed
- [11] E Y Enioutina et al.. Vaccine. 2000. Enhancement of common mucosal immunity in aged mice following their supplementation with various antioxidants. doi:10.1016/s0264-410x(00)00008-6 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.