Gradual Smooth Serum 215ml - Cadiveu Brasil Cacau is the between-services finishing serum of the Brasil Cacau range: a leave-in spray that reactivates the smooth, frizz-controlled look of a keratin smoothing when you blow-dry it in, with no chemical process. It lays down a cationic silicone film carrying hydrolyzed keratin, so the surface reads sleek and shiny, the frizz stays down and the hair dries faster. It is the salon back-bar and take-home serum that keeps a smoothing looking fresh between salon visits, in a 215ml trigger spray.

Why the Gradual Smooth Serum

A Brazilian smoothing fades gradually between services, and there are days when the hair wants a lift back toward that first-week finish. This is the serum for those days. Sprayed on clean, damp hair and worked in with a brush and dryer, it lays a cationic silicone film over the fibre, carrying hydrolyzed keratin, so the surface seals smooth, the frizz drops and the hair takes a sleeker, straighter-looking finish under the heat. It is a styling serum rather than a treatment: it reactivates the look of the smoothing without any chemical process, and washes down over the following washes rather than changing the hair for good. It is the finishing step of the Brasil Cacau home care routine, used after the Anti-Frizz Shampoo and Anti-Frizz Conditioner, and it cuts drying time on the days you reach for it.

Key Ingredients

The finish comes from a cationic silicone film: Silicone Quaternium-18 and Polysilicone-29 are quaternized silicones that bind to the fibre and lay a smooth, sealing layer over the cuticle, which is what controls frizz and adds shine. Carried with them, hydrolyzed keratin conditions the surface, and the film is activated and set as you brush and blow-dry. Because the finish is silicone-based it is a styling serum, not a rinse-out conditioner, and it is not vegan because of the hydrolyzed keratin. There is no reducer and no smoothing active in the formula: it reworks the surface and the look, it does not straighten the hair chemically.

What to Expect

Sprayed on and blow-dried in, the hair reads smoother and shinier straight away, with the frizz controlled and the surface sealed. Because the film also cuts down drying time, the blow-dry is quicker and the finish sits sleeker. The effect lasts through to the next wash and then rinses away, so it tops up the look of a smoothing rather than building up on the hair. It is at its best in the weeks a smoothing is starting to soften, when a spray and a blow-dry bring the finish back without booking a service. On its own it does not straighten curly or wavy hair permanently: it is a finish you refresh, not a treatment you keep.

Who It Is For

• Clients maintaining a Brazilian smoothing who want to top up the smooth, frizz-free look between services
• Anyone who wants a quicker blow-dry and a sleeker finish on smoothed or frizz-prone hair
• Salons that want a take-home finishing serum to sell alongside the smoothing service and the wash

Who It Is Not For

• A client after a permanent straightening, which is a salon smoothing treatment, not a leave-in serum
• Very fine hair that a silicone finish can leave looking flat if too much is used
• Hair a client likes to leave to dry in the air with nothing worked through it

Professional tip: less is more. Start with a few sprays on the mid-lengths and ends of damp hair, comb it through root to tip so it spreads evenly, then brush and blow-dry to set the film. Add a little more only where the frizz is stubborn; too much on fine hair reads flat rather than sleek.

How to Use

Run a sensitivity test before first use. Spray onto clean, damp hair, then comb from root to tip so it spreads evenly. Do not rinse. Activate the finish by styling the hair with a brush and dryer. Use it after the Anti-Frizz Shampoo and Anti-Frizz Conditioner.

Where It Fits in Your Maintenance Routine

The Gradual Smooth Serum is the finishing step of the Brasil Cacau home care routine, the leave-in that tops up a smoothing done with any of the Brasil Cacau smoothing systems. Wash with the Anti-Frizz Shampoo (or the Sulfate-Free Anti-Frizz Shampoo), follow with the Anti-Frizz Conditioner, then spray the serum through damp hair and blow-dry to bring the smooth finish back. It is the between-services lift; the smoothing itself is the salon treatment.

In Short

• The between-services finishing serum of the Brasil Cacau range: a leave-in spray with a cationic silicone film and keratin, in a 215ml trigger spray
• Sprayed on damp hair and blow-dried in, it reactivates the smooth, frizz-controlled look of a keratin smoothing, with no chemical process
• Controls frizz, adds shine and cuts drying time; the effect lasts to the next wash and rinses away
• A styling serum, not a chemical straightener; not vegan; the finishing step after the Anti-Frizz Shampoo and Conditioner