Sarah K Rio Tanino Brazilian Protein Smoothing Kit 1500ml

Sarah K Professional Hair Rio Tanino Brazilian Protein Smoothing Kit - 1500ml is the two-bottle box: the Tanino Brazilian Protein 1000 ml that smooths, and the Blond Neutralizing Mask 500 ml that closes the service on the acid side. It is the refill kit. The Clarifying Shampoo that opens a Rio service is not in here, and that is the point: this box is for a salon that already keeps one on the shelf. Starting from empty? The 2500 ml box holds all three.

At a glance

What it is: the two-bottle Rio kit, the smoothing protein plus the finishing mask
In the box: Tanino Brazilian Protein 1000 ml, Blond Neutralizing Mask 500 ml
Not in the box: the Clarifying Shampoo, which the protocol needs
Technology: Tanino Brazilian Protein, with a violet pigment in both bottles
Format: 1500 ml total, professional use
Profile: 0% formaldehyde on the protein; neither bottle is vegan
Best for: salons that already stock the Clarifying Shampoo

Why the two-bottle box exists

A Rio service runs on three products, not two: the Clarifying Shampoo opens it, the Tanino Brazilian Protein smooths, the Blond Neutralizing Mask closes it. This box holds the last two.

That split is deliberate. The Clarifying Shampoo is shared across the Sarah K lines: the same bottle opens a Rio service and a Carnival one. A salon running more than one system already owns it, and buying a fourth with every kit is money on a shelf. So this box holds the two products that are Rio and nothing else. If your shelf is empty, take the Rio Tanino Protein Kit 2500ml instead: same protocol, shampoo included.

What is in each bottle

Tanino Brazilian Protein 1000 ml: keratin, silk and wheat amino acids, rosemary extract, lactic acid and a violet pigment (CI 60730).
Blond Neutralizing Mask 500 ml: citric acid at pH 3.5/4.0, keratin, collagen, panthenol, coconut oil and the same violet pigment (Acid Violet 43).
Shared by both: the violet pigment, which is why this system is built for blonde.
Formaldehyde: the protein carries a 0% statement, and neither list holds a formaldehyde-releasing preservative.
Silicones: the mask carries them, so the box does. The protein on its own does not.

What to expect

Volume comes down, the hair reads smoother and glossier, and the blonde stays cool. This is a reduction, not a permanent straightening: how far it goes depends on porosity, lightening history and how the iron is worked. Results hold up to 6 months with proper application and aftercare. What the box will not do is stand in for the Clarifying Shampoo: without it the smoothing lands on buildup, and that shows from the first section.

Who it is for

Salons that already stock the Clarifying Shampoo and need the two Rio bottles.
Blonde, highlighted and bleached clients.
Professionals running Rio alongside another Sarah K line, sharing the one clarifier.
Anyone restocking after a first Rio service.

Who it is not for

Anyone starting from an empty shelf: the 2500 ml box has the Clarifying Shampoo in it.
Hair that is not blonde or lightened: the Carnival line runs the same architecture without the violet pigment.
Anyone avoiding animal proteins: keratin, collagen and silk amino acids across the two bottles, so not vegan.
Sensitivity to preservatives or fragrance allergens: both bottles declare allergens. Patch test first.

Professional tip

Check the shampoo before you book the service, not after the protein is out of the box. It is the bottle a salon runs out of quietly, precisely because it is shared: it gets used on days when nobody is doing a Rio. Run the strand test in the same breath. On lightened hair it sets the protein's processing time and how hard you can work the iron, and neither is a number to guess at with a client in the chair.

How to use

Clarify with the Clarifying Shampoo, not in this box, until the hair is residue-free, leaving it 3 minutes on the final wash.
Apply the protein strand by strand, 1 cm clear of the root. Leave 45 minutes, rinse thoroughly, dry 100 percent and flat-iron in very thin sections.
Apply the mask to damp hair, covering all of it. Leave it 5 to 15 minutes, then rinse with water only.
Finish with the iron up to 180 degrees Celsius on blond hair, 7 to 10 passes, weighted more at the roots and less at the tips.

Safety: For professional use. Work in a ventilated space and wear gloves. Run a patch and strand test first: the QR code on each bottle carries the test information. Both bottles declare fragrance allergens, and the protein is preserved with methylchloroisothiazolinone and methylisothiazolinone, a known sensitiser. Avoid contact with eyes, mouth and mucous membranes, and stop use at any sign of sensitisation. Keep out of reach of children, and store away from light, excessive heat and humidity.

Using it with the rest of the Rio system

The one product this box does not hold is Sarah K Clarifying Shampoo with Micellar Water 1000ml, and the protocol does not work without it: it takes the hair back to a residue-free base so the protein lands evenly. It is shared with the Carnival line, so a salon running both usually has one open. Inside the box, Sarah K Professional Hair Rio Tanino Brazilian Protein Smoothing for Blonde Hair - 1000ml does the smoothing and Sarah K Professional Hair Rio Blond Neutralizing Mask - 500ml closes it. Between services, the Rio Tanino Shampoo and Conditioner hold the result.

In short

Two bottles, not three: the smoothing protein and the finishing mask.
The Clarifying Shampoo is not in this box and the protocol needs it.
Built for blonde: a violet pigment in both bottles.
The complete box: Sarah K Professional Hair Rio Tanino Protein Kit 2500ml.

Complete your Rio routine

Sarah K Clarifying Shampoo with Micellar Water 1000ml -- the step this box does not include, and the protocol needs it.
Sarah K Professional Hair Rio Tanino Protein Kit 2500ml -- the same protocol with the Clarifying Shampoo in the box.
Sarah K Professional Hair Rio Blond Neutralizing Mask 500ml -- replenishment when the mask runs out before the protein does.
Sarah K Professional Hair Rio Tanino Shampoo and Conditioner 2x500ml -- home care that holds the result between services.

Frequently asked questions

What is in the box?

Two bottles: the Tanino Brazilian Protein 1000 ml, which does the smoothing, and the Blond Neutralizing Mask 500 ml, which closes the service on the acid side. 1500 ml in total. The Clarifying Shampoo that opens a Rio service is not included, and the 2500 ml box is the one that holds all three.

Do I need the Clarifying Shampoo as well?

Yes. Both bottles begin their instructions after the Clarifying Shampoo, and it is what takes the hair back to a residue-free base so the smoothing lands evenly. Skip it and you are working over buildup. Buy it separately, or take the 2500 ml kit, which has it in the box.

Which kit should I buy, the 1500 or the 2500?

The 2500 ml box is the same protocol with the Clarifying Shampoo included: take it if your shelf is empty. The 1500 ml is for a salon that already has the shampoo, and since that bottle is shared with the Carnival line, a salon running both systems usually does. The 3x100 ml is the trial size.

Is it formaldehyde-free?

The protein carries a 0% formaldehyde statement, and neither ingredient list in this box holds formaldehyde or a formaldehyde-releasing preservative. Work in a ventilated space and wear gloves anyway, as you would with anything you put under a hot iron in a professional setting.

What precautions does the salon need to take?

Professional use. Gloves, a ventilated space, and a patch and strand test before you start. Both bottles declare fragrance allergens, and the protein is preserved with methylchloroisothiazolinone and methylisothiazolinone, a known sensitiser. Avoid eyes, mouth and mucous membranes, and stop at any sign of sensitisation.

How long does the result last, and how do I maintain it?

Up to 6 months with proper application and aftercare, depending on hair type, density and how often the hair is washed. The Rio Tanino Shampoo and Conditioner are built for this system and help hold both the smoothness and the cool tone. Products that leave heavy residue shorten any progressive smoothing.

Is it safe on bleached hair, and do I need a strand test?

Lightened hair is exactly what Rio was built for. And yes, always run a strand test first. The QR code on each bottle carries the test information, and on bleached hair that test is what sets the protein's processing time and how hard the iron works at the end.

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