SoFast Mu-Coating Silk Protein Treatment

A lightweight leave-in serum from Secret Key, the SoFast Mu-Coating Silk Protein treatment smooths frizz and adds slip for easier styling. Silky in texture and quick-absorbing, it suits fine to damaged hair and those seeking bond-supporting gloss without heavy residue. Often found fragrance-free and vegan in formulation, it targets manageability and shine while layering well with other haircare.