Probiotics are defined as live microorganisms that, when administered in adequate amounts, confer health benefits to the host. Different to them, postbiotics are inactivated microorganisms or molecules produced and/or secreted after the lysis of bacteria that provide positive effects.
Studies show that both probiotics and postbiotics for external use contribute to the prevention and treatment of signs of aging and various skin conditions, with the advantages of being natural, safe and sustainable active ingredients, with lower allergenic potential. However, queries related to the production, regulation and substantiation of claims are still a challenge for probiotics in skincare, opening space for clarifying the use of postbiotics and their consolidation as a viable alternative for cosmetic applications.
By ELZA B. MARANGONI, RUTE MIRANDA, BRUNO A. CARILLO, TICIANE R. RODRIGUES, SÉRGIO C. GONÇALVES, PATRICIA S. LOPES, JULIANA S. NAKAYAMA – September 2021
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