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Vitamin A (Retinol) per Keratosis Pilaris

D

Vitamin A supports normal keratinocyte differentiation. Deficiency exacerbates KP. Topical retinoids have some evidence; oral vitamin A for KP has minimal data.

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            D

        

        

            
In sintesi

            
            
Vitamin A supports normal keratinocyte differentiation. Deficiency exacerbates KP. Topical retinoids have some evidence; oral vitamin A for KP has minimal data.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
2

        
Studi

    

    

        
100

        
Partecipanti

    

    

        
            
            ↑
            
        
        
Positive

    

    

        D

        
Grado

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
Dosaggi di uso comune

                

                    
                    

                        
general:

                        
700-900 mcg RAE/day (RDA)

                    

                    
                    

                        
skinhealth:

                        
700-900 mcg RAE/day (do not exceed UL)

                    

                    
                

                
                

                    Limite massimo: 3,000 mcg RAE/day (10,000 IU preformed vitamin A) — teratogenic at high doses
                

                
            

            

            

            
            

                Momento migliore per l'assunzione: With meals containing fat
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Effetti collaterali segnalati

                    
    
                        
                        
  • 
                            ⚠
                            Headache and nausea at high doses
                        
    • 
                        
                        
  • 
                            ⚠
                            Skin dryness and peeling (hypervitaminosis A)
                        
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                            ⚠
                            Liver toxicity with chronic excess
                        
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  • 
                            ⚠
                            Birth defects (teratogenic — pregnancy contraindication)
                        
    • 
                        
                    

                

                

                
                

                    
Interazioni note

                    
    
                        
                        
  • 
                            ●
                            Retinoid medications (additive toxicity risk — do not combine)
                        
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                            ●
                            Tetracycline antibiotics (increased intracranial pressure risk)
                        
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                            Anticoagulants (high-dose vitamin A may increase bleeding risk)
                        
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                            ●
                            Hepatotoxic drugs (additive liver stress)
                        
    • 
                        
                    

                

                

                
                

                    

                        Livello di assunzione massimo tollerabile: 3,000 mcg RAE/day (10,000 IU preformed vitamin A) — teratogenic at high doses
                    

                

                
            

            

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

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Vitamin A (Retinol) help with Keratosis Pilaris?
            
        
        

            Based on 2 studies with 100 participants, there is preliminary evidence that needs more research that Vitamin A (Retinol) may support Keratosis Pilaris management. Our evidence grade is D (Very Early Research).
        

    

    
    

        
            How much Vitamin A (Retinol) should I take for Keratosis Pilaris?
            
        
        

            Studies have used various dosages. A commonly studied range is 700-900 mcg RAE/day (RDA). Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Vitamin A (Retinol)?
            
        
        

            Reported side effects may include Headache and nausea at high doses, Skin dryness and peeling (hypervitaminosis A), Liver toxicity with chronic excess, Birth defects (teratogenic — pregnancy contraindication). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Vitamin A (Retinol) and Keratosis Pilaris?
            
        
        

            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





            

                

                
                

                    
Vitamin A (Retinol) per altre condizioni

                    

                        
                        
                            Acne
                            C

                        
                        
                        
                            Aging Skin & Wrinkles
                            C

                        
                        
                    

                

                
            

        

        

    


    
    












    

        Avvertenza FDA:
        Queste affermazioni non sono state valutate dalla Food and Drug Administration. I prodotti e le informazioni presenti su questo sito web non sono destinati a diagnosticare, trattare, curare o prevenire alcuna malattia. I gradi di evidenza presentati si basano sulla nostra analisi della ricerca pubblicata e sottoposta a revisione paritaria e non costituiscono consulenza medica. Consultate sempre il vostro medico prima di iniziare qualsiasi regime di integrazione.