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Lactobacillus rhamnosus for Acne

D

Emerging research links gut dysbiosis to acne via the gut-skin axis. Some early studies suggest L. rhamnosus supplementation may help support clear skin.

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The Bottom Line

            
            
Emerging research links gut dysbiosis to acne via the gut-skin axis. Some early studies suggest L. rhamnosus supplementation may help support clear skin.

            
            
        

    











    
    

        
        

            

  
Key Statistics





            


    

        
3

        
Studies

    

    

        
200

        
Participants

    

    

        
            
            ↑
            
        
        
Positive

    

    

        D

        
Grade

    




        


        
        

        
        
        

            

  
Dosage & Usage





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


            
            

                
Commonly Used Dosages

                

                    
                    

                        
general:

                        
1-10 billion CFU/day

                    

                    
                    

                        
atopicdermatitis:

                        
10 billion CFU/day L. rhamnosus GG

                    

                    
                

                
                

                    Upper limit: Not established; generally well-tolerated at doses up to 100 billion CFU/day
                

                
            

            

            

            
            

                Best taken: Before or with meals; some studies suggest empty stomach
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Reported Side Effects

                    
    
                        
                        
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                            ⚠
                            Mild gas or bloating (temporary, during initial use)
                        
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  • 
                            ⚠
                            Rare infections in severely immunocompromised individuals
                        
    • 
                        
                    

                

                

                
                

                    
Known Interactions

                    
    
                        
                        
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                            ●
                            Immunosuppressants (theoretical concern — live bacteria)
                        
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                            ●
                            Antibiotics (may reduce probiotic viability — separate by 2+ hours)
                        
    • 
                        
                    

                

                

                
                

                    

                        Tolerable upper intake: Not established; generally well-tolerated at doses up to 100 billion CFU/day
                    

                

                
            

            

                Always consult your healthcare provider before starting any supplement.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Lactobacillus rhamnosus help with Acne?
            
        
        

            Based on 3 studies with 200 participants, there is preliminary evidence that needs more research that Lactobacillus rhamnosus may support Acne management. Our evidence grade is D (Very Early Research).
        

    

    
    

        
            How much Lactobacillus rhamnosus should I take for Acne?
            
        
        

            Studies have used various dosages. A commonly studied range is 1-10 billion CFU/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Lactobacillus rhamnosus?
            
        
        

            Reported side effects may include Mild gas or bloating (temporary, during initial use), Rare infections in severely immunocompromised individuals. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Lactobacillus rhamnosus and Acne?
            
        
        

            We rate the evidence as Grade D (Very Early Research). This rating is based on 3 peer-reviewed studies with 200 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                
                

                
                

                    
Lactobacillus rhamnosus for other conditions

                    

                        
                        
                            Eczema (Atopic Dermatitis)
                            B

                        
                        
                    

                

                
            

        

        

    


    
    












    

        FDA Disclaimer:
        These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.