Signature Smooth No. 4 Weekly Booster for Coarse Hair - 4 x 0.3 oz

Transform your post-salon maintenance into a luxurious ritual with the Milbon Signature Smooth No. 4 Weekly Booster. Specifically engineered for the unique challenges of coarse, rebellious hair, this professional "step 4" treatment acts as the ultimate insurance policy for your hair's texture. While standard conditioners provide a fleeting surface fix, these concentrated vials are designed to extend the life of professional smoothing treatments for up to five weeks, ensuring that "just-left-the-salon" silkiness doesn't fade after the first wash.

At the heart of this booster is Milbon's groundbreaking SSVR-Silk™ technology, a powerful silk-based complex that bridges the microscopic "hollow tubular gaps" that form within chemically treated or naturally coarse hair. By filling these voids, the treatment restores the hair’s internal integrity and creates a uniform, light-reflecting surface that eliminates the dull, straw-like appearance common in thicker hair types. It’s an intensive shot of high-quality collagen that weightlessly reinforces each strand, providing a level of softness that you can feel immediately upon rinsing.

The sensory experience is as refined as the results, featuring a sophisticated aroma that turns your bathroom into a private spa retreat. Each single-use vial is travel-friendly and perfectly portioned, removing the guesswork from your deep conditioning routine. Simply swap your regular conditioner for one vial a week to maintain a luminous, vibrant finish that makes detangling effortless and styling a dream.

Professional Longevity: This weekly treatment is specifically formulated to prolong the results of professional 3-step deep conditioning services for over a month. It ensures your hair remains touchably soft and visibly smoother long after you leave the salon chair.

Structural Gap Filling: Utilizing innovative SSVR-Silk™ technology, the formula identifies and fills the internal "micro-voids" that cause coarse hair to feel rough or brittle. This restoration of the hair's core integrity results in improved elasticity and a significant reduction in breakage.

Intensive Smoothing Action: Enriched with specialized collagen, these vials provide a deep-reaching hydration that specifically targets the stubborn outer cuticle of coarse hair. It flattens the cuticle to seal in moisture and create a high-gloss, mirror-like shine.

Effortless Weekly Ritual: The kit contains four pre-measured vials, making it incredibly easy to maintain a consistent high-performance hair care schedule. Just five minutes of processing time once a week is all that's required to transform unruly texture into manageable silk.

Detangling & Control: This booster weightlessly detangles even the most rebellious hair, drastically reducing the time and effort needed for daily styling. It provides a smooth foundation that allows brushes and styling tools to glide through without snagging or tugging.