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Biotin 用于 Dry Skin

D

Biotin supports fatty acid synthesis in the stratum corneum. Deficiency causes dry skin, but evidence for supplementation in non-deficient individuals is limited.

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            D

        

        

            
结论

            
            
Biotin supports fatty acid synthesis in the stratum corneum. Deficiency causes dry skin, but evidence for supplementation in non-deficient individuals is limited.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
2

        
研究数量

    

    

        
100

        
受试者

    

    

        
            
            ↑
            
        
        
Positive

    

    

        D

        
等级

    




        


        
        

        
        
        

            

  
Dosage & Usage





            
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units


            
            

                
常用剂量

                

                    
                    

                        
general:

                        
30 mcg/day (AI)

                    

                    
                    

                        
skinhairnails:

                        
2,500-5,000 mcg/day

                    

                    
                

                
                

                    上限： No established UL (water-soluble); may interfere with lab tests at high doses
                

                
            

            

            

            
            

                最佳服用时间： With meals for better absorption
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
已报告的副作用

                    
    
                        
                        
  • 
                            ⚠
                            Generally well-tolerated
                        
    • 
                        
                        
  • 
                            ⚠
                            May cause acne breakouts at high doses (> 5,000 mcg)
                        
    • 
                        
                        
  • 
                            ⚠
                            Interferes with troponin and thyroid laboratory tests
                        
    • 
                        
                    

                

                

                
                

                    
已知相互作用

                    
    
                        
                        
  • 
                            ●
                            Laboratory test interference (troponin, thyroid panels, vitamin D assays)
                        
    • 
                        
                        
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                            ●
                            Anticonvulsants (carbamazepine, phenytoin may reduce biotin levels)
                        
    • 
                        
                        
  • 
                            ●
                            Prolonged antibiotic use (may reduce gut biotin synthesis)
                        
    • 
                        
                    

                

                

                
                

                    

                        可耐受最高摄入量： No established UL (water-soluble); may interfere with lab tests at high doses
                    

                

                
            

            

                在开始服用任何补充剂之前，请务必咨询您的医疗保健提供者。
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Biotin help with Dry Skin?
            
        
        

            Based on 2 studies with 100 participants, there is preliminary evidence that needs more research that Biotin may support Dry Skin management. Our evidence grade is D (Very Early Research).
        

    

    
    

        
            How much Biotin should I take for Dry Skin?
            
        
        

            Studies have used various dosages. A commonly studied range is 30 mcg/day (AI). Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Biotin?
            
        
        

            Reported side effects may include Generally well-tolerated, May cause acne breakouts at high doses (> 5,000 mcg), Interferes with troponin and thyroid laboratory tests. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Biotin and Dry Skin?
            
        
        

            We rate the evidence as Grade D (Very Early Research). This rating is based on 2 peer-reviewed studies with 100 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Biotin 用于其他健康状况

                    

                        
                        
                            Hair, Skin & Nails Health
                            C

                        
                        
                    

                

                
            

        

        

    


    
    












    

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