HEMA (2-hydroxyethyl methacrylate) ek methacrylate monomer hai jo artificial nails, gel polishes, aur dental aur medical adhesives mein use hota hai. Iska main kaam film-forming aur strong bonding properties dena hota hai. Ye essentially ek formulation ingredient hai, na ki directly skin par laga ke skin care ke liye use hone wali cheez.