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Astaxanthin per UV Protection (Internal Photoprotection)

B Evidenze Almeno un trial randomizzato lo supporta, con risultati per lo più coerenti.

Research suggests astaxanthin supplementation may increase the minimal erythema dose (MED) and reduce UV-induced skin damage markers including MMP-1 expression.

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Research suggests astaxanthin supplementation may increase the minimal erythema dose (MED) and reduce UV-induced skin damage markers including MMP-1 expression.

            
            
        

    










    

  
Key Study Findings





    

        
        

            

                
                    Systematic Review
                
                
                
                
            

            
                Oral Supplements and Photoprotection: A Systematic Review.
            
            

                
                Dose: None
                
                
                vs: Placebo/no supplement
                
                
                Outcome: Photoprotective effects (MED, erythema)
                
                
                Effetto: None
                
                
                None
                
            

            
            
Popolazione: Healthy adults (47 studies in systematic review)

            
        

        
        

            

                
                    Randomized Controlled Trial
                
                
                n=23
                
                
                10 weeks
                
                
                Double-blind
                
            

            
                The Protective Role of Astaxanthin for UV-Induced Skin Deterioration in Healthy People-A Randomized, Double-Blind, Placebo-Controlled …
            
            

                
                Dose: 4 mg/day astaxanthin
                
                
                vs: Placebo
                
                
                Outcome: Minimal erythema dose (MED), skin moisture
                
                
                Effetto: None
                
                
                None
                
            

            
            
Popolazione: Healthy Japanese adults

            
        

        
    







    
    

        
        

            

  
Key Statistics





            


    

        
7

        
Studi

    

    

        
350

        
Partecipanti

    

    

        
            
            ↑
            
        
        
Positive

    

    

        B

        
Grado

    




        


        
        
        

            

  
Referenced Papers





            

                
                

                    

                        
                            Oral Supplements and Photoprotection: A Systematic Review.
                        
                        
                            
                                Systematic Review
                            
                            
                            
                        
                    

                    

                        Journal of medicinal …
                        2025
                        
                        3 citazioni
                        
                    

                

                
                

                    

                        
                            The Protective Role of Astaxanthin for UV-Induced Skin Deterioration in Healthy People-A Randomized, Double-Blind, Placebo-Controlled Trial.
                        
                        
                            
                                RCT
                            
                            
                            
                        
                    

                    

                        Nutrients
                        2018
                        
                        113 citazioni
                        
                    

                

                
            

        

        

        
        
        

            

  
Dosage & Usage





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


            
            

                
Dosaggi di uso comune

                

                    
                    

                        
general:

                        
4-12 mg/day

                    

                    
                    

                        
skinhealth:

                        
4-6 mg/day

                    

                    
                

                
                

                    Limite massimo: Generally recognized as safe up to 24 mg/day
                

                
            

            

            
            

                
Dosaggi studiati nella ricerca

                

                    

                        
                            

                                Dosaggio
                                Durata
                                Effetto
                                N
                            

                        
                        
                            
                            

                                None
                                --
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                            

                                4 mg/day astaxanthin
                                10 weeks
                                
                                    
                                    Positive
                                    
                                
                                23
                            

                            
                        
                    

                

            

            

            
            

                Momento migliore per l'assunzione: With meals containing fat for better absorption
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Effetti collaterali segnalati

                    
    
                        
                        
  • 
                            ⚠
                            Generally well-tolerated
                        
    • 
                        
                        
  • 
                            ⚠
                            Mild orange skin discoloration at very high doses (harmless)
                        
    • 
                        
                        
  • 
                            ⚠
                            Rare gastrointestinal discomfort
                        
    • 
                        
                    

                

                

                
                

                    
Interazioni note

                    
    
                        
                        
  • 
                            ●
                            Antihypertensive medications (may have additive blood pressure lowering)
                        
    • 
                        
                        
  • 
                            ●
                            Immunosuppressants (may modulate immune function)
                        
    • 
                        
                        
  • 
                            ●
                            5-alpha-reductase inhibitors (theoretical interaction)
                        
    • 
                        
                    

                

                

                
                

                    

                        Livello di assunzione massimo tollerabile: Generally recognized as safe up to 24 mg/day
                    

                

                
            

            

                Consultare sempre il proprio medico prima di iniziare qualsiasi integratore.Consultate sempre il vostro medico prima di iniziare qualsiasi integratore.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Astaxanthin help with UV Protection (Internal Photoprotection)?
            
        
        

            Based on 7 studies with 350 participants, there is moderate evidence from clinical studies that Astaxanthin may support UV Protection (Internal Photoprotection) management. Our evidence grade is B (Good Evidence).
        

    

    
    

        
            How much Astaxanthin should I take for UV Protection (Internal Photoprotection)?
            
        
        

            Studies have used various dosages. A commonly studied range is 4-12 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Astaxanthin?
            
        
        

            Reported side effects may include Generally well-tolerated, Mild orange skin discoloration at very high doses (harmless), Rare gastrointestinal discomfort. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Astaxanthin and UV Protection (Internal Photoprotection)?
            
        
        

            We rate the evidence as Grade B (Good Evidence). This rating is based on 7 peer-reviewed studies with 350 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  




            

                
                
                

                
                

                    
Astaxanthin per altre condizioni

                    

                        
                        
                            Aging Skin & Wrinkles
                            B

                        
                        
                    

                

                
            

        

        

    


    
    






  
References

  
    
    
    
  1. 
      [1]
      Nicole Natarelli et al..
      J Med Food.
      2025.
      Oral Supplements and Photoprotection: A Systematic Review.
      doi:10.1089/jmf.2024.0023
      PubMed
    
    2. 
    
    
  2. 
      [2]
      Naoki Ito et al..
      Nutrients.
      2018.
      The Protective Role of Astaxanthin for UV-Induced Skin Deterioration in Healthy People-A Randomized, Double-Blind, Placebo-Controlled Trial.
      doi:10.3390/nu10070817
      PubMed
    
    3. 
    
  















    

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