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SkinCited

Grape Seed Extract ： Hyperpigmentation

C

An RCT found grape seed extract improved melanin index in women with chloasma. OPCs may inhibit tyrosinase activity and reduce melanogenesis. Limited evidence.

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            C

        

        

            
結論

            
            
An RCT found grape seed extract improved melanin index in women with chloasma. OPCs may inhibit tyrosinase activity and reduce melanogenesis. Limited evidence.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
3

        
研究数

    

    

        
180

        
参加者数

    

    

        
            
            ↑
            
        
        
Positive

    

    

        C

        
グレード

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
一般的な使用量

                

                    
                    

                        
general:

                        
100-300 mg/day

                    

                    
                    

                        
skinhealth:

                        
100-400 mg/day standardized to 95% OPCs

                    

                    
                

                
                

                    上限量： Generally well-tolerated up to 600 mg/day
                

                
            

            

            

            
            

                推奨摂取タイミング： With or without food; well absorbed
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
報告されている副作用

                    
    
                        
                        
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                            ⚠
                            Mild gastrointestinal discomfort
                        
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                            ⚠
                            Headache (rare)
                        
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                            ⚠
                            Dizziness (rare)
                        
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既知の相互作用

                    
    
                        
                        
  • 
                            ●
                            Anticoagulants (may have antiplatelet effects)
                        
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  • 
                            ●
                            NSAIDs (may have additive effects)
                        
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  • 
                            ●
                            Iron supplements (tannins may reduce absorption)
                        
    • 
                        
                    

                

                

                
                

                    

                        耐容上限摂取量： Generally well-tolerated up to 600 mg/day
                    

                

                
            

            

                サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Grape Seed Extract help with Hyperpigmentation?
            
        
        

            Based on 3 studies with 180 participants, there is limited but promising evidence that Grape Seed Extract may support Hyperpigmentation management. Our evidence grade is C (Some Evidence).
        

    

    
    

        
            How much Grape Seed Extract should I take for Hyperpigmentation?
            
        
        

            Studies have used various dosages. A commonly studied range is 100-300 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Grape Seed Extract?
            
        
        

            Reported side effects may include Mild gastrointestinal discomfort, Headache (rare), Dizziness (rare). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Grape Seed Extract and Hyperpigmentation?
            
        
        

            We rate the evidence as Grade C (Some Evidence). This rating is based on 3 peer-reviewed studies with 180 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Grape Seed Extract 他の症状・状態について

                    

                        
                        
                            Aging Skin & Wrinkles
                            C

                        
                        
                    

                

                
            

        

        

    


    
    












    

        FDAに関する免責事項:
        これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。