NK 4-Step Keratin Hair Treatment Set – Formaldehyde-Free Vegan Straightening System with Collagen, Keratin, Silk Protein & Niacinamide – Includes Shampoo & Repair Mask – All Hair Types (32oz)

✅ 4-Step Keratin Hair Treatment System – Includes Pre-Treatment Shampoo (Step 1), Keratin Smoothing Cream (Step 2), Sodium-Free Silk Protein Shampoo (Step 3), and Restorative Mask (Step 4). ✅ Formaldehyde-Free & Safe for All Hair Types – Vegan, gentle formula enriched with Collagen, Hydrolyzed Keratin, Avocado Extract, and Silk Protein. Suitable for chemically treated, colored, and sensitive hair. ✅ Extreme Straightening in Just 20 Minutes – Get ultra-smooth, frizz-free, salon-quality results with long-lasting shine and manageability for up to 6 months. ✅ Hydrating Post-Treatment Care – Sodium-free Step 3 shampoo gently cleanses while preserving the straightening effect. Silk Protein and Betaine improve texture, reduce frizz, and enhance flexibility.