Probiotics aur unke lysates ya ferment filtrates live ya inactivated microorganisms hote hain jo topically use hote hain skin microbiome ko support karne ke liye, skin barrier ko strengthen karne ke liye, aur inflammation ko reduce karne ke liye. Zyada tar cosmetic formulations mein actually probiotics ke fermented versions hote hain kyunki ye shelf-stable hote hain aur live cultures se zyada stable rehte hain.