SL International Sealing Mask – Professional Step 3 Deep Hydration & Sealing Treatment | 16oz / 473ml
Complete your professional treatment protocol with Sealing Mask by SL International, Step 3 of our professional hair treatment system. This deep-hydrating and sealing formula is specifically designed to lock in the results of the previous treatment steps, closing the hair cuticle and delivering intense nourishment, protection, and lasting shine.
Formulated to restore, nourish, and protect, Sealing Mask penetrates the hair fiber to replenish moisture and essential nutrients, sealing the cuticle to prevent moisture loss and protect against heat, humidity, and daily environmental stress. The result: deeply hydrated, healthy-looking hair with a smooth, glass-like shine that lasts.
As the final step of the SL International professional system, Sealing Mask ensures that all previous treatments are locked in and fully optimized, leaving the hair soft, resilient, and radiant from root to tip.
Key Benefits:
- Deep hydration and intensive nourishment
- Seals the hair cuticle for long-lasting results
- Restores, nourishes, and protects the hair fiber
- Enhances shine and softness
- Helps protect against heat and humidity
- Professional-grade formula for salon-exclusive use
- Final step of the SL International professional treatment system
Size: 16oz / 473ml
Directions for Use: Apply Sealing Mask as Step 3, after completing Step 1 (Clarifying Shampoo) and Step 2 (treatment of choice). Distribute evenly through mid-lengths and ends of damp hair. Allow to process according to the professional protocol before rinsing or proceeding to heat styling. For professional use only.










