NK Professional Care 4-Step Keratin Hair Treatment Set – Keratin Treatment Kit with Step 1 & 2 + Post-Treatment Shampoo + 2 Hair Masks – Collagen & Hyaluronic Acid – Formaldehyde-Free, Vegan (32oz)

Complete 4-Step Keratin Treatment System: Includes Step 1 Anti-Residue Shampoo, Step 2 Keratin Smoothing Treatment, Step 3 Moisturizing Shampoo, and 2 deep repair masks (Collagen & Hyaluronic Acid). Fast, Long-Lasting Results – Just 20 Minutes: Achieve smooth, ultra-straight hair that lasts up to 6 months. Designed for all hair types, including curly, frizzy, chemically treated, and color-treated hair. Deep Repair with Nourishing Hair Masks: The collagen hair mask restores strength and elasticity, while the hyaluronic acid mask hydrates and controls frizz. Use day or night for soft, manageable hair. Formaldehyde-Free, Vegan & Safe for Sensitive Hair: Free from harsh chemicals. Suitable for daily use and compatible with all hair types including multicultural textures. Safe on dyed or bleached hair.