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Zinc 用于 Acne

A

A meta-analysis found zinc supplementation (30-45 mg/day for 8-12 weeks) significantly reduced inflammatory acne lesions. Zinc inhibits 5-alpha-reductase, C. acnes growth, and inflammatory cytokines.

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结论

            
            
A meta-analysis found zinc supplementation (30-45 mg/day for 8-12 weeks) significantly reduced inflammatory acne lesions. Zinc inhibits 5-alpha-reductase, C. acnes growth, and inflammatory cytokines.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
12

        
研究数量

    

    

        
900

        
受试者

    

    

        
            
            ↑
            
        
        
Positive

    

    

        A

        
等级

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
常用剂量

                

                    
                    

                        
general:

                        
8-11 mg/day (RDA)

                    

                    
                    

                        
acneskinhealth:

                        
15-30 mg/day

                    

                    
                

                
                

                    上限： 40 mg/day (elemental zinc — higher doses may cause copper depletion)
                

                
            

            

            

            
            

                最佳服用时间： With meals to reduce nausea; avoid taking with iron or calcium
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
已报告的副作用

                    
    
                        
                        
  • 
                            ⚠
                            Nausea (especially on empty stomach)
                        
    • 
                        
                        
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                            ⚠
                            Copper depletion with long-term high-dose use
                        
    • 
                        
                        
  • 
                            ⚠
                            Metallic taste
                        
    • 
                        
                        
  • 
                            ⚠
                            Headache
                        
    • 
                        
                    

                

                

                
                

                    
已知相互作用

                    
    
                        
                        
  • 
                            ●
                            Copper supplements (mutual absorption competition — separate by 2+ hours)
                        
    • 
                        
                        
  • 
                            ●
                            Tetracycline and quinolone antibiotics (reduced antibiotic absorption)
                        
    • 
                        
                        
  • 
                            ●
                            Penicillamine (reduced absorption of both)
                        
    • 
                        
                        
  • 
                            ●
                            Iron supplements (competitive absorption)
                        
    • 
                        
                    

                

                

                
                

                    

                        可耐受最高摄入量： 40 mg/day (elemental zinc — higher doses may cause copper depletion)
                    

                

                
            

            

                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 Zinc help with Acne?
            
        
        

            Based on 12 studies with 900 participants, there is strong evidence from multiple clinical trials that Zinc may support Acne management. Our evidence grade is A (Strong Evidence).
        

    

    
    

        
            How much Zinc should I take for Acne?
            
        
        

            Studies have used various dosages. A commonly studied range is 8-11 mg/day (RDA). Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Zinc?
            
        
        

            Reported side effects may include Nausea (especially on empty stomach), Copper depletion with long-term high-dose use, Metallic taste, Headache. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Zinc and Acne?
            
        
        

            We rate the evidence as Grade A (Strong Evidence). This rating is based on 12 peer-reviewed studies with 900 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Zinc 用于其他健康状况

                    

                        
                        
                            Wound Healing
                            A

                        
                        
                    

                

                
            

        

        

    


    
    












    

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