Nano zinc oxide ek broad-spectrum inorganic UV filter hai jo UVA aur UVB dono se protection deta hai reflection, scattering aur absorption ke through. Nanoparticle form mein yeh conventional zinc oxide jaisa white cast nahi chhod pata. Yeh ek physical sunscreen hai jo sensitive skin ke liye achcha hai aur chemical filters ke saath use karna safe hai.