Restore your hair to its healthiest state with the Senscience CPR 4-Step Professional Hair Repair Kit, a comprehensive system designed for deep reconstruction of damaged, brittle, or porous hair. Each product in the kit is presented in generous 1-liter bottles, making it ideal for professional use or long-term home care. This kit is specially formulated to repair both internal (cortex) and external (cuticle) porosity, replenishing the hair?s essential components and restoring elasticity, strength, and shine. The exclusive blend of keratin protein, silk protein, silk amino acids, and the proprietary Bio-Structurer complex ensures deep penetration and effective repair, leaving hair smooth, manageable, and resistant to future damage. What?s Included in the Kit (1 Liter Each): Step 1: Porosity Reconstruction Treatment (1L) Infused with proteins and amino acids to repair porosity and restore elasticity. Strengthens the hair structure, making it more resistant to breakage. Prepares the hair for further treatment by addressing internal damage. Step 2: Cuticle Repair Treatment (1L) Seals and repairs the hair cuticle for a smoother, healthier appearance. Protects hair from environmental damage and locks in hydration. Restores shine and softness to dry, brittle strands. Step 3: Post-Treatment Conditioner (1L) Balances moisture levels and nourishes hair after intensive repair. Enhances hair texture, leaving it silky, manageable, and easy to style. Works as the finishing step for complete hair reconstruction. Step 0: Pre-Treatment Shampoo (1L) Optional clarifying shampoo for a deep cleansing process. Removes impurities and buildup to prepare hair for intensive repair. Recommended for hair needing extra cleansing prior to the treatment process. Key Benefits: Total Repair: Reconstructs internal and external porosity for healthy, strong hair. Protein Enrichment: Restores elasticity, strength, and flexibility with keratin and silk proteins. Deep Hydration: Balances and locks in moisture for lasting softness and shine. Protection Prevention: Shields against environmental aggressors and future damage. Professional-Grade: Developed for salon use but perfect for home care. How to Use: Wash hair with Step 0 Pre-Treatment Shampoo if deep cleansing is needed. Towel-dry hair to retain 80% of its moisture. Apply Step 1 (Porosity Reconstruction Treatment) to mid-lengths and ends, focusing on damaged areas. Distribute evenly with a comb. Cover with a plastic cap and process with heat for 10 minutes. Without rinsing, apply Step 2 (Cuticle Repair Treatment) over Step 1. Cover with a plastic cap and process with heat for another 10 minutes. Rinse thoroughly and apply Step 3 (Post-Treatment Conditioner). Leave on for 3?5 minutes, then rinse well. Style as desired. Rejuvenate your hair with the Senscience CPR Professional Hair Repair Kit. This 4-step system, presented in convenient 1-liter bottles, delivers intensive care for damaged hair, ensuring a smooth, shiny, and resilient finish. Perfect for chemically treated, dry, or heavily damaged hair, this kit provides long-lasting professional results from the comfort of your home.