01/09/2025

Introducing SmoothFiller™: A New Era of Keratin Treatments

Model with long, glossy, smooth hair after a SmoothFiller™ service.

What if you could say goodbye to frizz and enjoy a smoother finish that lasts? With Wella Professionals’ new in-salon service, SmoothFiller™, faster, easier styling is yours – every day. This demi-permanent treatment refills and restructures your hair, making it more manageable than ever before. So, let’s take a closer look at how this next generation of what was known as a keratin hair treatment could transform your daily regimen...


What is SmoothFiller™?

SmoothFiller™ is a new hair smoothing technology that reduces frizz, smooths your hair and makes it more manageable. This demi-permanent, in-salon hair treatments refills and restructures your hair to make frizzy strands history. So, if you find you spend a lot of time blow-drying your hair straight, only to worry about humidity undoing all your efforts, SmoothFiller™ will give you up to three months of quicker and easier styling.


Results You’ll Love

See the transformation from frizzy to smooth

Before and after showing model’s long, blonde, frizzy hair looking smooth and glossy after a SmoothFiller service.
Before and after showing model’s long, dark brown, frizzy hair looking smooth and glossy after a SmoothFiller service.

How is SmoothFiller™ Different to Keratin Hair Treatments?

Unlike keratin hair treatments, this one-of-a-kind service lets you enjoy smoother, easier-to-manage hair without drastically changing your hair texture. So, if you have waves or curls, their beautiful shape will remain. The smoothing effect also softly and gradually fades over time, which means you'll be left with no visible regrowth in between salon visits. Meanwhile, you don’t have to worry about any washing restrictions after your service. Now you can wash your hair as soon as you like with any shampoo you like, even if it’s not a sulfate-free shampoo.


How Long Does a SmoothFiller™ Treatment Last?

With SmoothFiller™, you’ll enjoy refilled and restructured hair with reduced frizz for up to three months, as well as a gradual fading that means you don’t have to worry about visible regrowth. After the three months are over, you can head back to your nearest Wella salon for a touch-up. The results of your treatment are cumulative, which means the more you do it, the smoother your hair will be.


Romeu Felipe runs hands through a model’s long, smooth, glossy, brown hair.
Model with long, glossy, smooth blonde hair after a SmoothFiller service.

Is SmoothFiller™ Right for Me?

SmoothFiller™ is the ideal service for anyone who struggles with unmanageable, frizzy hair, as it refills and restructures your strands to keep frizz under control. So, whether you have a straight but frizzy, wavy or curly hair type, this demi-permanent smoothing service is perfect for you. Plus, it comes with all these benefits:

  • Smoother hair and frizz control, even in the face of humidity. The results of your SmoothFiller™ treatment last for up to three months.
  • Hair that’s easier to style and manage from one day to the next.
  • No visible regrowth – the results gradually and softly fade over time.
  • Unique low-fume, dermatologically tested formula ensures a worry-free salon experience. The product only takes 20 minutes to develop.
  • No restrictions on how you wash your hair after your service. You can shampoo whenever you want, and your formula doesn’t have to be sulfate-free.
  • Hair can be colored after SmoothFiller™ with Color Touch, even during the same salon appointment.

So, How Does SmoothFiller™ Work?

If you’re struggling with frizzy hair, this is usually caused by gaps and tears within the hair shaft, which leave it vulnerable to the effects of humidity. SmoothFiller™ works to refill these gaps with a Smart Delivery System, which ensures the active smoothing ingredient penetrates the hair cuticles into the cortex. Once there, this ingredient refills and restructures the hair fiber from the inside out, building more bonds inside the hair. The result? Less frizz, beautifully luminous shine, and effortless styling.


What Can I Expect When I Go to the Salon?

Ready to book your first SmoothFiller™ service? When you head to your nearest Wella hair salon, the smoothing treatment is completed in three steps, putting you on the fast-track to beautiful hair. Here's what to expect:


Step 1: Preparation



Model’s hair is washed by a hairstylist.

First, your Wella stylist will wash your hair to ensure it’s clean and prepared to absorb the treatment. Then, they’ll blow-dry your hair until it’s around 80% dry. Hair needs to be slightly damp in order for the smoothing treatment to penetrate.


Step 2: Application


SmoothFiller treatment is applied to model’s hair.

Next, SmoothFiller™ is applied. Your stylist will apply the solution evenly on your hair (avoiding the scalp) and then allow it to develop for 20 minutes. Once developed, your hair is thoroughly rinsed. During the development time, the product penetrates inside the hair, then any residue is removed by rinsing.


Step 3: Activation


Model’s hair is flat ironed smooth.

After the treatment has been rinsed out entirely, your stylist will blow-dry your hair until it’s completely dry. They’ll then flat iron your hair in small sections with multiple passes until every strand has been smoothed out. The heat activates SmoothFiller™’s ingredient to unlock the smoothing results. And just like that, your SmoothFiller™ service is complete.

Hair can be toned with Color Touch, our demi-permanent color, right after, even during the same service appointment, but it’s not necessary. SmoothFiller will give you shinier hair* (*versus untreated hair)

Your Day-to-Day Smoothing Regimen

After you leave the salon, you can wash your hair as soon as you want to, and with any shampoo formula you choose. This is one of our favorite things about SmoothFiller™: there are no restrictions on your daily regimen. But if you want to follow a ritual that’s all about smoothness, why not try ULTIMATE SMOOTH? From Shampoo to Conditioner to Miracle Oil Serum, these are your go-to steps...


Step 1: ULTIMATE SMOOTH Shampoo


Model with smooth blonde hair holds up ULTIMATE SMOOTH Shampoo.
ULTIMATE SMOOTH Shampoo in model’s hand.

The foundation of smooth, silky strands is a shine-boosting shampoo, so kick off your regimen with ULTIMATE SMOOTH Shampoo. Suitable for all hair textures and hair types, it cleanses away dulling impurities to leave your strands nourished and ready to absorb your conditioner or mask. Plus, its luxurious lather turns wash day into a sensorial experience, with a soft, light scent that's uplifting and calming all at once.


Step 2: ULTIMATE SMOOTH Conditioner


Model squeezes ULTIMATE SMOOTH Conditioner from the tube.
ULTIMATE SMOOTH Conditioner.

Hair glows better when it's deeply nourished, so boost hair health with ULTIMATE SMOOTH Conditioner; a rich, creamy, yet lightweight formula that targets dullness. Squeeze excess water out of your hair first, so the sumptuous conditioner can be deeply absorbed, then let it soak in for between 30 seconds and 3 minutes. Rinse thoroughly and towel-dry before applying the next step...


Step 3: ULTIMATE SMOOTH Miracle Oil Serum


ULTIMATE SMOOTH Miracle Oil Serum on a gold background.
Model with long, glossy, smooth hair after a SmoothFiller™ service.

Finish your soft, silky look with ULTIMATE SMOOTH Miracle Oil Serum, a luxe elixir that nourishes in 30 seconds for up to 85% smoother hair*. This serum boosts hair with smoothness that lasts up to 3 days**. (Yes – 3 days!) It treats hair strands to a patented blend of Squalane and Omega-9, which works to nourish from the inside out. But that's not all. The multitasking oil also works as a heat protectant and UV shield to prevent heat damage, so you get shine, silky-smoothness and deep nourishment in one step. Apply it directly to damp hair before you blow-dry or top it up in between washes for an instant dose of care.

Now you've got the full lowdown on SmoothFiller™, why not book in for a consultation? Use our Salon Finder to locate your nearest Wella hair salon, and start your journey to silkier strands...



* When using Miracle Oil Serum vs non-conditioning shampoo.

** When using ULTIMATE SMOOTH Miracle Oil Serum, if unwashed for 3 days, vs. untreated.




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