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Carnival
The Sarah K Carnival line is the formaldehyde-free progressive brush system from Sarah K Professional Hair, built around macadamia, lactic acid, amino acids and collagen. The line runs from the salon chair to the bathroom shelf: the Clarifying Shampoo, the Carnival Protein Treatment and the Universal Neutralizing form the salon protocol, and the matching duo of Carnival shampoo and conditioner keeps the smooth result on track at home.
What makes Carnival different
Within Sarah K, every line takes its own route. So Liss works with whey protein and keratin and adds a BTX volume-reduction route next to smoothing; La Vie en Rose is the vegan restorative line. Carnival nourishes the hair fiber during the smoothing itself: lactic acid helps regulate the hair's pH so strands fall smoother with less frizz, while macadamia and collagen care for the lengths.
How the system works
After a thorough wash with the Sarah K Clarifying Shampoo, apply the Carnival Protein Treatment strand by strand, keeping 1 cm away from the roots. Leave in for 45 minutes, rinse thoroughly, dry the hair completely and finish with a flat iron in fine sections. The Universal Neutralizing then closes the service: 5 to 15 minutes on damp hair, rinsed with water only, to rebalance the pH and restore shine and softness. At home, the Carnival duo takes over the maintenance.
Who it is for
For anyone looking for a naturally straight result with care built into the smoothing itself. The Protein Treatment and the Universal Neutralizing are professional salon products; the Carnival shampoo and conditioner are there for your daily routine at home. If volume reduction is what you are after rather than smoothing, So Liss is the sister line to choose within the brand.
Shop the Carnival line
Salon protocol
Sarah K Clarifying Shampoo with Micellar Water - 1000ml, step 1: opens and deeply cleanses the hair before the service.
Sarah K Professional Hair Carnival Protein Treatment - 1000ml, step 2: the progressive smoothing active with macadamia, lactic acid, amino acids and collagen.
Also available in 500ml
Sarah K Professional Hair Carnival Universal Neutralizing - 500ml, step 3: rebalances the pH after smoothing and brings back shine and softness.
Sarah K Professional Hair Carnival Protein Treatment Kit - 2500ml, the Carnival system in kit format for intensive salon use.
Also available as a 3x100ml kit
Home-care
Sarah K Professional Hair Carnival Shampoo - 500ml, gentle cleansing with Brazil nut, copaiba, carnauba and cupuacu to keep straight hair looking good for longer.
Also available in 300ml
Sarah K Professional Hair Carnival Conditioner - 500ml, nourishes and hydrates the lengths after every wash, with the same Brazilian botanical blend.
Also available in 300ml
Sarah K Professional Hair Carnival Shampoo and Conditioner - 2x500ml, the complete home duo in one convenient set.
Also available as a 2x300ml duo
Frequently asked questions
What is Sarah K Carnival and how does it differ from So Liss and La Vie en Rose?
Carnival is a progressive brush system without formaldehyde, built around macadamia, lactic acid, amino acids and collagen. So Liss works with whey protein and keratin and adds a BTX volume route next to smoothing; La Vie en Rose is the vegan restorative line. Carnival focuses on nourishing while it smooths: lactic acid helps regulate the pH so hair falls smoother with less frizz.
Is Carnival suitable for colored or bleached hair?
The official protocol does not exclude colored hair, and the formula cares for the fiber during smoothing. For bleached or heavily sensitized hair, a strand test and a professional assessment beforehand remain the standard: the Protein Treatment and the Universal Neutralizing are salon-use products. At home, you maintain the result with the Carnival shampoo and conditioner.
How do you keep the smooth result looking good for as long as possible?
How long the result lasts depends on hair type and aftercare; Sarah K does not publish a fixed timeframe. What is certain: the Carnival duo is made to keep straight hair straight for longer and the fiber nourished. Leave the shampoo in for 2 to 5 minutes, the conditioner for 5 minutes on the lengths, and rinse well each time.
Does Carnival contain formaldehyde?
No. Sarah K formulates the Carnival line without formaldehyde; that is the starting point of the entire line. The smoothing effect comes from the action of lactic acid, which helps regulate the hair's pH, combined with amino acids, collagen and macadamia that care for the fiber during the service. The result is a naturally straight finish that feels cared for and supple.
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