This Silk Therapy Serum by BioSilk is engineered to deliver intensive silk micro-smoothers directly into the hair shaft. It helps to repair, smooth, and add brilliant shine without weighing the hair down. Ideal for rejuvenating dry, damaged, or chemically treated hair, this formula seals the hair cuticle, protecting against humidity and environmental stressors. Use it daily on damp or dry hair to achieve a noticeably softer texture and manageability.