Kefiran ek exopolysaccharide hai jo lactic acid bacteria se kefir fermentation ke dauraan banta hai. Skincare mein ise hydrating aur film-forming agent ke taur pe use hota hai jo skin ko conditioning aur soothing effect deta hai. Iska antioxidant properties bhi hote hain aur yeh skin ki moisture ko lock karne mein madad karta hai. Sensitive aur dry skin ke liye achha hai.