Smooth hair has become less about a single style and more about how hair behaves day in and day out. It’s not just about how it looks when you leave the salon, but how it behaves every day after. From humidity and porosity to daily heat styling and environmental stress, hair texture is constantly stressed. That’s why smoothing services today need to be smarter, more flexible, and designed to work with everyone’s hair, not against it.
That’s where new Wella Professionals SmoothFiller steps in. This demi-permanent smoothing service was designed to deliver smoother hair, reduced frizz, and easier and faster styling for up to 3 months—for effortless hair, every day.
SmoothFiller is a revolution in smoothing designed to deliver all of the upsides with none of the downsides often associated with traditional smoothing services. The salon-exclusive service takes under two hours, has no post-service restrictions, and allows for same-day color services. You can wash your hair, workout and even swim on the same day as your service.
The Science Behind SmoothFiller
Frizz can be the result of your hair’s natural porosity, but additionally it is caused by dry or damaged strands. When the hair’s internal structure is uneven or overly dry, it seeks moisture from the air. This is where frizz happens. This moisture entering the strands causes the strands to swell and become harder to control.
SmoothFiller was designed to address exactly this with a single product. SmoothFiller doesn’t contain keratin or protein. Instead, it creates a new kind of bond inside the hair that lasts up to three months and gradually fades without visible regrowth. Instead of coating the hair’s surface, SmoothFiller uses a Smart Delivery System that allows the active ingredient to penetrate deep inside the hair fiber. Through thermal activation, the ingredient fills the hair’s protein structure and creates new, stable, longer-lasting bonds that help restructure the hair from within. Rather than artificially coating the hair’s surface, the active ingredient penetrates deep inside the hair fiber. Through thermal activation, porosity gaps are filled with a new longer-lasting bond—resulting in incredible smoothness, effortless styling with less frizz, and natural movement.
This internal approach is what allows SmoothFiller to deliver:
- Smoother hair
- Reduced frizz
- Easier and faster styling
- Natural movement
- Results that last up to 3 months
And because the smoothing effect gradually fades, hair returns to its original texture over time—without visible regrowth or harsh lines of demarcation.
Before & After
About The SmoothFiller Experience
With a modern approach to smoothing services, SmoothFiller was streamlined to be quick and comfortable—for both the stylist and the client. The service uses just one product and features a low-fume, fragrance-free formula with only 8 carefully chosen ingredients and is silicone-free, mineral oil–free, fragrance-free, vegan, and dermatologically tested.
With a fast 20-minute processing time, the full service takes just under two hours, with no additional rinsing or restrictions post-service. Clients can color or lighten their strands, wash their hair, work out, swim, or tie it up the same day—making SmoothFiller easy to fit into any routine or existing salon services.
Effortless Hair, Everyday
SmoothFiller is loved not only for its immediate results but for the way hair behaves between salon visits as well. After the smoothing service, hair feels easier to blow-dry, smoother to the touch, and more resistant to humidity. Meaning styles last longer, take less effort, and maintain a polished look with natural movement.
For clients who struggle with frizz regularly or seasonally, have uneven texture, or struggle with styles that don’t last, SmoothFiller will transform their daily styling routine into something faster, simpler, and more manageable—without committing to permanent straightening.
Why At-Home Care Matters After SmoothFiller
Daily cleansing, conditioning, and protection are essential to maintaining softness, manageability, and frizz control between appointments. And if you’re looking for an at-home system to pair with your SmoothFiller service, ULTIMATE SMOOTH is the ideal match. As Wella Professionals’ most luxurious hair care line for smoother, shinier hair with less frizz, this system is formulated with ingredients that preserve and amplify SmoothFiller results.
The Perfect Pair: SmoothFiller + ULTIMATE SMOOTH
ULTIMATE SMOOTH features a nourishing formula with Squalane & Omega-9 that works inside and out, for smoother and shinier hair. Used as a part of a consistent routine, this range helps maintain the look, feel, and manageability achieved with a SmoothFiller service.
The recommended ULTIMATE SMOOTH regimen includes:
- ULTIMATE SMOOTH Shampoo + Conditioner
A nourishing, color-safe shampoo and conditioner duo formulated with Metal-Purifier technology to help detox your hair from metals, and Squalane & Omega-9 to nourish dull, dry, frizzy hair inside and out. - ULTIMATE SMOOTH Mask
Ideal for dull, damaged and frizzy hair this weekly treatment deeply smooths, nourishes and adds shine. - ULTIMATE SMOOTH Miracle Oil Serum
A delicate hair oil that deeply nourishes hair in 30 seconds and delivers smoothness that lasts up to 3 days¹ with UV and heat protection (230°C/450°F), while leaving hair silky and shiny.
ULTIMATE SMOOTH is the perfect regimen to provide 96 hours of frizz control² and up to 85% smoother hair³. And together with SmoothFiller it creates a seamless in-salon to at-home routine—supporting effortless, frizz-free hair every day, not just on appointment day.
¹If unwashed for 3 days vs. untreated
² When using Miracle Oil Serum
³ Vs. non-conditioning shampoo
