Research Summary:
The skin, being the largest organ in the human body, plays a pivotal role in safeguarding the body against invasive pathogens. Therefore, it is essential to reinforce and protect this vital organ. Current research supports the impact of probiotics on skin health and their ability to alleviate various skin disorders. However, the effectiveness and potential side effects of probiotics in skincare remain a subject of debate, necessitating further investigation and analysis. This study aims to highlight existing gaps and future needs in the current research on probiotics in skincare, paving the way for future investigations.
We examined the effects of oral (fermented foods and dietary supplements) and non-oral/topical probiotics on skincare, and the mechanisms by which probiotics influence skin health. The results of most studies show that fermented foods containing probiotics, particularly dairy products, have a positive impact on skin health. Research on the efficacy of probiotic supplements and live strains in treating skin disorders also shows promising potential. However, safety evaluations are crucial to identify any potential adverse effects.
While research has identified numerous potential mechanisms by which probiotics may influence skin health, a complete understanding of their precise mode of action remains elusive. It appears that probiotics exert their positive effects through the gut-skin and gut-skin-brain axis in the human body.
Therefore, following the identification of safe probiotics, additional studies should be conducted to establish optimal dosages, potential side effects, suitable regulatory guidelines, and validation methods.
Keywords: Probiotics, Skin care, Fermented food, Dietary supplements, Mechanism of action.
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