Gloss & Smooth
- Focus
- Softness, shine & manageability
- Hair considerations
- Dry, frizz-prone hair
- Treatment sizes
- 100 mL · 500 mL
- Application
- Professional salon use


Macadamia oil and amino acids in a professional treatment that helps smooth frizz-prone hair and improve manageability.
Ultimate Smooth Brazilian Protein is a professional smoothing option for thick, coarse, curly or wavy hair. It is designed to help reduce unwanted volume while supporting a soft, glossy finish.
For professional use. Read the current product label and KSP technical guidance before application.
A trained hair professional should assess the hair and previous chemical services, complete the testing required by the selected product, and follow the current, product-specific KSP instructions. Do not use a general range guide as an application protocol.
Follow all label warnings and required strand and sensitivity testing. If the hair is compromised or the instructions are unclear, contact KSP before proceeding. Processing, heat settings, preparation and finishing steps must be selected for the exact treatment and hair condition.
KSP smoothing treatments are intended for professional salon use. Your stylist should assess suitability and carry out the service using the current instructions for the exact product.
Results vary with the treatment, hair condition and home-care routine. Your stylist can explain what to expect and recommend a maintenance plan for your hair.
Ask your stylist which shampoo, conditioner and finishing products suit your hair and your chosen service. Follow their advice on when to wash and maintain your treatment.
Discover Gloss & Smooth aftercare
For ingredients, product suitability or the current technical instructions, contact KSP before use. Ask KSP for product support
KSP Ultimate Smooth Brazilian Protein 500ml
The finish, considered
Professional smoothing care for thick, coarse, curly or wavy hair, with macadamia oil and amino acids.
Professional salon use. Results vary with hair condition and aftercare.
Formulation highlights
Selected ingredients from the KSP Ultimate Smooth Brazilian Protein treatment.
Selected highlights, not a complete ingredient list. Follow the current product label, suitability assessment and testing requirements.
Ask about a formula
KSP Ultimate Smooth Brazilian Protein 500ml
Compare the collection
Three professional smoothing ranges. Start with your hair goals, then confirm the right service with your stylist.
This product’s range
A guide for discussion with your stylist. Follow the exact product’s current label, suitability assessment and testing requirements. Hair colour or texture alone does not establish suitability.