DESIGN ESSENTIALS SILK ESSENTIALS THERMAL STRENGTHENING SERUM provides immense shine while sealing the cuticle and locking moisture into the hair during thermal. styling. 17 amino acids serve to strengthen damaged hair. Penetrates the cuticle easily to restore hair health. Eliminates static Improves hair manageability while imparting shine and a high gloss finish. Ideal for all hair textures and daily use. Can be used on wet or dry hair.