The Sarah K Sunset Leave-In Anti-Frizz Spray - Thermal Protector 200ml is a lightweight Brazilian home-care mist designed to shield hair before sun, heat tools, pool, or beach exposure. Formulated with Panthenol, keratin peptides, hyaluronic acid, shea butter, and a silicone shield complex, it helps tame frizz and conditions strands without weighing them down. Use it daily on clean, towel-dried hair as the final step before styling -- or as the last thing you reach for on your way out into a bright summer day.

What it is

Sunset Leave-In is a leave-in protection spray from Sarah K's Brazilian home-care line. Misted at roughly 20 cm from clean hair, it deposits a fine, protective film across the cuticle that helps shield strands from heat styling and from environmental exposure at the pool, on the beach, and in the sun. The formula leans on a familiar pro-style blueprint: protein peptides and pro-vitamin B5 for condition, hyaluronic acid and shea butter for hydration, and a silicone film-former complex for slip and protection. It is leave-in (no rinsing), suitable for daily use, and finished with a fine-mist pump.

Key ingredients

The Sunset Leave-In active mix is INCI-led and label-verified:

• Hydrolyzed Keratin -- fragmented keratin protein, branded on the front of the bottle as "Peptides." These short-chain peptides help support the hair fibre and add a conditioning effect along the strand.
• Panthenol -- pro-vitamin B5, the front-label hero. A humectant that converts to pantothenic acid in the strand and contributes to moisture retention and softness.
• Sodium Hyaluronate -- the sodium salt of hyaluronic acid. A lightweight humectant for fast hydration without heaviness.
• Butyrospermum Parkii (Shea) Butter -- botanical emollient at the low concentration typical of leave-in sprays, contributing softness and slip without weight.
• Silicone shield complex -- Amodimethicone, Cyclopentasiloxane, and Dimethiconol form a flexible film across the cuticle. This is the mechanism that delivers the thermal-protection and sun/pool/beach shielding positioning carried on the front label.

The full ingredient list is printed on the bottle.

What you can expect

A consistent daily mist of Sunset Leave-In coats the hair with a lightweight, protective film. You can expect frizz to feel tamer, flyaways to lie flatter, and the cuticle to look smoother and shinier. Before a flat iron or blow dryer, the silicone complex helps your hair handle the heat with less stress -- fewer rough spots, less of the dry, brittle feel that builds up after weeks of daily styling. Before sun, pool, or beach exposure, the same film helps shield the cuticle from sunlight, chlorine, and saltwater. None of this replaces a hat or a swim cap, but it adds a meaningful daily layer of routine protection.

Who it is for

Sunset Leave-In is for anyone who wants a daily, weightless mist that doubles as a thermal protector and a summer-exposure shield. It works well on frizz-prone hair, on hair that gets dull or dry from regular heat styling, and on hair that spends long stretches by the pool, in the sea, or under the sun. It plays nicely on top of colour, highlights, and chemically smoothed hair. The formula is vegan, dermatologically tested, and made in Brazil.

Pro tips

• Shake the bottle before each use -- the silicone shield complex is suspended in the formula, not dissolved.
• Hold the bottle at 20 cm and apply light, even passes; a fine, even coat performs better than a heavy soak.
• For the most consistent thermal coverage, mist onto towel-dried hair before blow-drying.
• Reapply a quick mist after towel-drying post-swim -- chlorine and saltwater rinse part of the film away.
• Avoid spraying directly onto the scalp; concentrate on mid-lengths and ends where damage shows first.

How to use

1. Wash your hair with your usual shampoo and conditioner. Towel-dry to remove excess water.
2. Shake the Sunset bottle, then spray onto the hair at roughly 20 cm -- light, even passes from mid-lengths to ends.
3. Comb through with a wide-tooth comb if you want extra distribution.
4. Style as desired -- blow dry, flat iron, curling iron, or simply air-dry. The silicone shield complex sets in as you style.
5. Reapply lightly before heading out into sun, pool, or beach, and again after towel-drying post-swim.

Suitable for daily use.

In short

A lightweight pump-spray leave-in from Sarah K's Brazilian home-care line, built for two daily jobs: thermal protection before heat styling, and protective shielding before sun, pool, and beach exposure. Panthenol, keratin peptides, hyaluronic acid, shea butter, and a silicone shield complex deliver weightless conditioning and a flexible cuticle film. Vegan, dermatologically tested, made in Brazil. Use it daily on clean, towel-dried hair as your final styling step.