K18 Professional Molecular Repair Hair Mask

Size:150ml / 5oz

The K18 Professional Molecular Repair Hair Mask is a revolutionary leave-in treatment designed to restore hair strength, softness, and elasticity after intense salon services or at-home treatments. Infused with the groundbreaking K18PEPTIDE™, this cream-based mask targets and repairs damage caused by bleach, color treatments, chemical services, and heat styling.

Clinically proven to reverse damage at the molecular level, the K18 mask delivers immediate and lasting results in just 4 minutes. Whether used alongside the K18 PRO mist as part of a professional service or on its own, this lightweight treatment strengthens, smooths, and revitalizes hair for salon-fresh results every time.

Benefits & Features

• Powered by K18PEPTIDE™: Biotech-engineered peptide that reconnects broken polypeptide chains and disulfide bonds.
• Repairs All Types of Damage: Targets damage from bleaching, coloring, chemical treatments, and heat styling.
• Fast-Acting Formula: Clinically proven to renew hair strength, elasticity, and smoothness in just 4 minutes.
• Cream-Based Texture: Lightweight and easy to apply, leaving hair detangled, soft, and conditioned without weighing it down.
• pH-Optimized (5.0–6.0): Minimizes cuticle swelling and strengthens hair proteins to their most resilient state.
• Safe for All Hair Types: Vegan, cruelty-free, and color-safe for universal use.

What Makes K18 Stand Out

While other masks and treatments only coat the hair’s surface, K18 Professional Molecular Repair Hair Mask works from the inside out. The patented K18PEPTIDE™ actively restores broken bonds and polypeptide chains at the molecular level, offering true damage reversal rather than temporary fixes.

Its unique 4-minute application time makes it one of the fastest and most effective repair masks on the market, perfect for busy professionals and salon clients alike.

Specifications

• Size: 150ml / 5oz
• Format: Cream, leave-in treatment
• Best For: All hair types (damaged, chemically treated, color-treated, heat-styled)
• Key Ingredient: K18PEPTIDE™
• Vegan: Yes
• Cruelty-Free: Yes
• pH Level: 5.0–6.0
• Application Time: 4 minutes

Directions

With a color or chemical service:

1. Before the service, apply K18 professional molecular repair hair mist. Wait 4 minutes. Do not rinse out.
2. Apply 1-3 pumps of K18 professional molecular repair hair mask based on your client’s length and density, starting at the ends and working up toward the roots. Let sit for 4 minutes. Do not rinse out.
3. Proceed with cut or style as usual.
4. If toning, use K18 PRO mist first, wait 4 minutes, then apply toner directly over PRO mist. Process as usual. Rinse or shampoo toner + apply the K18 PRO mask per the instructions above.

Without a chemical service:

1. Shampoo, do not condition. Towel-dry thoroughly
2. Apply 1-3 pumps of K18 professional molecular repair hair mask based on your client’s length and density, starting at the ends and working up toward the roots.
3. Let sit for 4 minutes. Do not rinse out.
4. Proceed with cut or style as usual.