

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 (8oz)
Key item features
- ✅ 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.
Specs
- BrandNK Professional Care
- Hair typeAll Hair Types
- Hair care key benefitsSmoothing & Straightening
- Ingredient preferenceFormaldehyde-Free
- SizeS
- Hair product formCreams
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About this item
Product details
Perfect for sensitive, colored, and chemically treated hair, this formaldehyde-free system strengthens, smooths, and nourishes from root to tip.
✅ STEP 1: Deep Cleansing Anti-Residue Shampoo
Prepares the hair by removing buildup and opening the cuticle for optimal treatment absorption. Ideal for professional-level pre-treatment.
✅ STEP 2: Ultra-Deep Keratin Smoothing Treatment
Infused with Collagen, Hydrolyzed Keratin, and Avocado Extract, this formula straightens hair in just 20 minutes, repairing damage while reducing frizz and boosting shine. Results last up to 6 months.
✅ STEP 3: Maintenance Shampoo (Sodium-Free)
A gentle, color-safe formula enriched with Silk Protein, Milk Protein, and Betaine. Helps maintain the straightening effect while nourishing and softening the hair. Suitable for daily use.
✅ STEP 4: Restorative Hair Mask
With Niacinamide, Panthenol, Vitamin C (Ascorbic Acid), and Biotin, this intensive mask improves texture, promotes growth, strengthens strands, and leaves hair silky smooth with a delicate scent — all in just 5 minutes.
Results you’ll love:
✔️ Frizz-free, sleek hair
✔️ Enhanced shine and softness
✔️ Stronger, more manageable strands
✔️ Long-lasting straightening (up to 6 months)
✔️ Safe, nourishing care for sensitive or treated hair
- ✅ 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.
Specifications
Brand
Hair type
Hair care key benefits
Ingredient preference
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Instructions
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