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L-Cysteine لـ تساقط الشعر بسبب نقص التغذية

D

بناءً على 2 دراسة. 2/2 دراسة تُظهر تأثيرات إيجابية.

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الخلاصة

            
            
L-Cysteine has a logical biological connection to hair health as a keratin building block, but there is very little clinical evidence to support its use specifically for nutritional deficiency hair loss.

            
            
            
    
                
                
  • 
                    
                    Only 2 studies exist, with no human clinical trials
                
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  • 
                    
                    L-Cysteine is a key amino acid in keratin production, providing a biological rationale
                
    • 
                
                
  • 
                    
                    Available evidence is limited to a review article and an in vitro study
                
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  • 
                    
                    Clinical trials are needed before L-Cysteine can be recommended for hair loss specifically
                
    • 
                
            

            
        

    










    

  
Key Study Findings





    

        
        

            

                
                    Review
                
                
                
                
            

            
                Does Vitamin B6 Act as an Exercise Mimetic in Skeletal Muscle?
            
            

                
                Dose: None
                
                
                مقابل: None
                
                
                Outcome: None
                
                
                التأثير: None
                
                
                None
                
            

            
            
المجتمع المدروس: Healthy adults

            
        

        
    







    
    

        
        

            

  
Key Statistics





            


    

        
2

        
الدراسات

    

    

        
--

        
المشاركون

    

    

        
            
            ↔
            
        
        
Mixed

    

    

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التقييم

    




        


        
        
        

            

  
Referenced Papers





            

                
                

                    

                        
                            Does Vitamin B6 Act as an Exercise Mimetic in Skeletal Muscle?
                        
                        
                            
                                Review
                            
                            
                            
                        
                    

                    

                        International journal of …
                        2024
                        
                        5 اقتباسات
                        
                    

                

                
                

                    

                        
                            Effects of the Usage of l-Cysteine (l-Cys) on Human Health.
                        
                        
                            
                                Review
                            
                            
                            
                        
                    

                    

                        Molecules (Basel, Switzerland)
                        2018
                        
                        120 اقتباسات
                        
                    

                

                
            

        

        

        
        
        

            

  
Dosage & Usage





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


            
            

                
الجرعات الشائعة

                

                    
                    

                        
hairloss:

                        
500-1,000 mg/day

                    

                    
                

                
                

                    الحد الأعلى: Not established
                

                
            

            

            
            

                
الجرعات المدروسة في الأبحاث

                

                    

                        
                            

                                الجرعة
                                المدة
                                التأثير
                                ن
                            

                        
                        
                            
                            

                                None
                                --
                                
                                    
                                    Neutral
                                    
                                
                                --
                            

                            
                        
                    

                

            

            

            
            

                أفضل وقت للتناول: On an empty stomach for better absorption, or with meals if stomach upset occurs
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
الآثار الجانبية المُبلّغ عنها

                    
    
                        
                        
  • 
                            ⚠
                            Nausea and gastrointestinal discomfort
                        
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                            ⚠
                            Unpleasant sulfur-like odor
                        
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  • 
                            ⚠
                            Headache
                        
    • 
                        
                        
  • 
                            ⚠
                            Rare: rash or allergic reaction
                        
    • 
                        
                    

                

                

                
                

                    
التفاعلات المعروفة

                    
    
                        
                        
  • 
                            ●
                            Nitroglycerin (NAC may enhance vasodilatory effects, causing headache and hypotension)
                        
    • 
                        
                        
  • 
                            ●
                            Activated charcoal (reduces NAC absorption)
                        
    • 
                        
                        
  • 
                            ●
                            Anticoagulants (NAC may have mild antiplatelet properties)
                        
    • 
                        
                    

                

                

                
                

                    

                        الحد الأقصى المسموح به: Not established
                    

                

                
            

            

                استشر مقدم الرعاية الصحية دائماً قبل البدء بأي مكمل غذائي.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does L-Cysteine help with تساقط الشعر بسبب نقص التغذية?
            
        
        

            Based on 2 studies with 0 participants, there is preliminary evidence that needs more research that L-Cysteine may support تساقط الشعر بسبب نقص التغذية management. Our evidence grade is D (Very Early Research).
        

    

    
    

        
            How much L-Cysteine should I take for تساقط الشعر بسبب نقص التغذية?
            
        
        

            Studies have used various dosages. A commonly studied range is 500-1,000 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of L-Cysteine?
            
        
        

            Reported side effects may include Nausea and gastrointestinal discomfort, Unpleasant sulfur-like odor, Headache, Rare: rash or allergic reaction. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for L-Cysteine and تساقط الشعر بسبب نقص التغذية?
            
        
        

            We rate the evidence as Grade D (Very Early Research). This rating is based on 2 peer-reviewed studies with 0 total participants. The overall direction of effect is mixed.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                

                    
مكونات أخرى لـ تساقط الشعر بسبب نقص التغذية

                    

                        
                        
                            السيلينيوم
                            A

                        
                        
                        
                            Biotin
                            B

                        
                        
                        
                            Vitamin A
                            D

                        
                        
                        
                            فيتامين B12
                            F

                        
                        
                        
                            حمض الفوليك
                            F

                        
                        
                    

                

                

                
                
                
            

        

        

    


    
    












    

        إخلاء مسؤولية FDA:
        لم تُقيَّم هذه البيانات من قبل إدارة الغذاء والدواء (FDA). لا تهدف المنتجات والمعلومات الواردة في هذا الموقع إلى تشخيص أو علاج أو شفاء أو الوقاية من أي مرض. تستند تقييمات الأدلة المعروضة إلى تحليلنا للأبحاث المحكّمة المنشورة ولا تُشكّل نصيحة طبية. استشر مقدم الرعاية الصحية دائماً قبل البدء بأي نظام مكملات.