The Keratin Complex Kc Primer Pre-Treatment Shampoo & NKST Smoothing Treatment 67.6 is a high-quality hair treatment product formulated with keratin as its active ingredient. This unisex product is suitable for all hair types and provides a smoothing and straightening effect, making it ideal for achieving a sleek and salon-quality finish at home. With a volume of 67.6 fl oz, this cream formulation is designed to last for up to 24 months after opening, ensuring long-lasting results for your hair styling needs.