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

Step into the world of professional Japanese hair care with the Milbon Signature Smooth No. 4 Weekly Booster, a specialized deep-conditioning treatment designed to prolong that "just-left-the-salon" feeling. Specifically formulated for medium hair textures, this intensive weekly ritual targets the structural integrity of your strands from the inside out. Each vial acts as a concentrated surge of smoothing technology, utilizing Milbon’s proprietary SSVR-Silk™—a powerful, silk-based complex that fills in the hollow "tubular gaps" often found in chemically treated or stressed hair. By reinforcing these internal structures, the treatment restores the natural bounce and resilience of your hair, ensuring it feels as healthy as it looks.

The sensory experience is as refined as the results, featuring a sophisticated fragrance profile with top notes of blackcurrant and apple that transition into a floral heart of lily of the valley (Muguet) and jasmine. As you massage the silky cream from mid-lengths to ends, the smoothing collagen works to seal the hair cuticle, effectively trapping moisture and creating a glass-like shine. Unlike heavy masks that can leave medium hair feeling weighed down or greasy, this formula provides a weightless, "slip-through-your-fingers" softness that maintains movement and volume. It is the ultimate secret weapon for those battling dullness, tangles, or textural inconsistencies caused by environmental stressors and heat styling.

This pack contains four convenient, travel-friendly tubes, providing a full month of intensive maintenance to bridge the gap between salon visits. By incorporating this booster into your Sunday self-care routine once a week in place of your regular conditioner, you extend the life of professional smoothing treatments for up to five weeks. The result is a visibly brighter, more vibrant hair color and a texture that feels remarkably supple and manageable. Whether you're prepping for a busy week or recovering from a weekend of styling, these "booster shots" ensure your hair remains in its prime state: luminous, silky-smooth, and effortlessly chic.