- Pregnancy or Breastfeeding: Do not use. This is stated on the approved product label.
- Children: Do not use on children. This is stated on the approved product label.
- Active Scalp Conditions: Do not apply if there are irritations, lesions or abrasions on the scalp, or with psoriasis, eczema or seborrheic dermatitis.
- Fine or Thinning Hair: A volume control treatment reduces bulk, which can leave fine hair looking flat and limp. Assess carefully before proceeding.
- Henna-Dyed Hair: Henna creates a coating that blocks penetration, producing patchy and uneven results.
- Frequent Swimmers: Regular chlorine or salt water exposure will shorten how long the result lasts.
- Sulfate Shampoo Users: Without switching to sulphate-free and sodium chloride-free aftercare, the result will fade quickly.
A professional volume control system designed to reduce excess volume and frizz while keeping the hair’s natural movement, for a smoother, softer and more manageable finish.
• Professional volume control: Helps control excess volume and bulk for an easier-to-manage finish.
• Frizz control with natural movement: Smooths and polishes while maintaining the hair’s own curl and wave pattern.
• Formaldehyde-free formula: Contains no formaldehyde and no formaldehyde donors in the INCI.
• Glyoxyloyl amino-acid technology: Works with controlled heat without breaking disulphide bonds.
Safety checkpoint
A strand test is mandatory before every application. Wear gloves, work in a well-ventilated area, keep at least 1 cm away from the scalp, and never exceed 200°C if flat-ironing.
Description
Kerasmooth BTX 50 Hair Volume Control is a salon-only treatment made in Brazil for hair that needs less bulk and less frizz without losing its natural movement. Its violet cream formula combines Glyoxyloyl Carbocysteine and Glyoxyloyl Keratin Amino Acids with a conditioning blend of grape seed oil, macadamia seed oil, olus oil, hydrolysed soy and wheat proteins, oat extract and a multi-amino-acid complex.
Applied with the controlled professional protocol below, the system helps control excess volume and frizz while improving softness, shine and the visible condition of the hair. Results may last over time with correct application and suitable aftercare. Individual results vary with hair condition, texture, technique and maintenance.
Is this the right Kerasmooth system?
Choose BTX 50 when the goal is volume and frizz control with natural movement retained
This system is intended for professional clients who want less bulk, less frizz and easier styling while keeping their own curl or wave pattern. It suits hair that feels heavy, wide or difficult to manage, rather than hair where the goal is a change of shape.
Looking for a visibly straighter finish instead?
Choose Kerasmooth Brazilian Keratin System.
How the formula works
The professional formula uses Glyoxyloyl Carbocysteine and Glyoxyloyl Keratin Amino Acids at a combined 6%. These act as hair fibre modifiers when activated by heat, interacting with amino acid residues in the fibre without breaking disulphide bonds. This supports a temporary reorganisation of the fibre surface that helps control excess volume and frizz while preserving the hair’s natural structure and movement.
The formula also contains grape seed oil, macadamia seed oil, olus oil, shea butter esters, humectants and a multi-amino-acid blend to support softness, slip, shine and moisture balance. Hydrolysed soy protein, hydrolysed wheat protein and Avena sativa extract contribute antistatic effects and improved surface regularity. This is a cosmetic treatment that works at the surface of the hair fibre. Its effect is temporary and does not permanently alter the hair's internal structure.
Formula and professional credentials
• Formaldehyde-free composition: no formaldehyde or formaldehyde donors in the INCI.
• Glyoxyloyl Carbocysteine + Glyoxyloyl Keratin Amino Acids: 6% combined.
• Grape seed oil, macadamia seed oil and olus oil.
• Hydrolysed soy protein, hydrolysed wheat protein and Avena sativa meal extract.
• Multi-amino-acid conditioning blend with humectants for moisture balance.
• Not tested on animals.
What is included
1 × Kerasmooth BTX 50 Hair Volume Control, 120 ml ℮ (4.1 fl oz). This listing is for the bottle only.
Need the branded bowl, application brush, sectioning clips, wide-tooth comb, round brush, gloves and disposable salon cape? Choose the Kerasmooth Application Kit.
Product details
• Texture and colour: Violet homogenous cream.
• Nominal fill: 120 ml ℮ (4.1 fl oz).
• Country of origin: Brazil.
• Shelf life: 36 months unopened; 12M period after opening.
• Rinse-off professional treatment.
• For professional use only.
Mandatory Strand Test
Before every treatment, carry out the strand test. Choose a small section of hair, preferably from the nape or middle of the head. Follow the complete application instructions on that section and check the condition of the strand afterwards.
• Do not proceed if the hair appears fragile, weakened or overly damaged.
• Do not proceed if the strand weakens, discolours or breaks.
• If the strand test result is satisfactory, proceed with the full application using the approved protocol.
Why this matters
Hair history and visible appearance alone do not confirm how a strand will respond to processing and heat. The strand test is the mandatory decision point before every service.
When NOT to use this treatment +
Professional application workflow +
Phase 1 — Test + cleanse
Perform the strand test. Wash the hair with Kerasmooth Shampoo, rinse thoroughly and towel-dry to remove excess water. The hair should be clean and damp.
Phase 2 — Section
Part the hair into four sections using a pin-tail brush and sectioning clips.
Phase 3 — Apply + process
Shake well. Wearing gloves, apply evenly to damp hair in small sections while keeping at least 1 cm from the scalp. Leave on for 30 minutes.
Phase 4 — Rinse + dry
Rinse thoroughly with water until all product residue is removed, then dry the hair with brushing.
Phase 5 — Optional iron + finish
Flat-ironing is optional. If used, work small inch-wide sections with approximately 3–6 slow, controlled passes, never exceeding 200°C. Finish with a small amount of argan oil on the ends if desired.
Heat and pass guidance +
Flat-ironing is optional for BTX 50. Where it is used, follow this guidance and never exceed 200°C.
Coarse / resistant hair
Temperature: Up to 200°C
Passes: 3–6
Professional note: Use the minimum effective passes; never exceed 200°C.
Normal hair
Temperature: Up to 200°C
Passes: 3–6
Professional note: Adjust after strand-test assessment.
Fine hair
Temperature: Maximum 180°C
Passes: Fewer passes
Professional note: Assess suitability first — volume reduction can leave fine hair flat.
Full 10-step professional protocol +
- Before starting, perform a strand test to ensure the product is suitable for the hair.
- Wash the hair with Kerasmooth Shampoo, rinse thoroughly, and remove excess water with a towel. Hair should be clean and damp.
- Part the hair into four sections using a pin-tail brush and sectioning clips.
- Shake the bottle well before use and wear gloves during application.
- Apply the product evenly to damp hair, working in small sections and keeping at least 1 cm away from the scalp.
- Leave the product on the hair for 30 minutes.
- Rinse thoroughly with water until all product residue is removed.
- Dry the hair with brushing. Flat-ironing is optional and, if used, may be applied to small inch-wide sections approximately 3–6 times each, slowly and smoothly, never exceeding 200°C.
- Finish by applying a small amount of argan oil to the ends, if desired.
- To maintain the results, use Kerasmooth sulphate-free shampoo and conditioner.
Full ingredients / INCI +
AQUA, GLYOXYLOYL CARBOCYSTEINE, GLYOXYLOYL KERATIN AMINO ACIDS, CETEARYL ALCOHOL, ISOPROPYL PALMITATE, PARFUM, SHEA BUTTER CETYL ESTERS, BEHENTRIMONIUM METHOSULFATE, VITIS VINIFERA SEED OIL, MACADAMIA INTEGRIFOLIA SEED OIL, AVENA SATIVA MEAL EXTRACT, HYDROLYZED SOY PROTEIN, HYDROLYZED WHEAT PROTEIN, PROPYLENE GLYCOL, POLYQUATERNIUM-37, GLYCERIN, SODIUM PCA, PEG-90M, SODIUM LACTATE, OLUS OIL, ARGININE, ACID VIOLET 43, ASPARTIC ACID, PCA, PHENOXYETHANOL, GLYCINE, ALANINE, SERINE, VALINE, ISOPROPYL ALCOHOL, ISOLEUCINE, PROLINE, THREONINE, POTASSIUM SORBATE, TETRASODIUM EDTA, SODIUM BENZOATE, HISTIDINE, PHENYLALANINE, TOCOPHEROL, CITRUS LIMON PEEL OIL, CITRONELLOL, BENZYL BENZOATE.
Ingredients may be updated. Always refer to the product packaging supplied for the most current ingredient list.
Aftercare
- Use Kerasmooth sulphate-free shampoo and conditioner for ongoing care.
- Blow-dry properly after washing to support a smoother finish.
- Results depend on hair condition, service technique and aftercare, and may last over time.
Professional safety information
Professional use. External use only. Wear suitable gloves when applying the product. Apply exactly as directed. Do not apply if there are irritations or lesions on the scalp. If irritation occurs, discontinue use and seek medical advice. Do not use if pregnant, breastfeeding, or on children. Keep out of reach of children and store in a cool, well-ventilated place.
Avoid contact with eyes. If contact occurs, rinse immediately with plenty of clean water, keeping eyelids open. Take care not to damage the hair with excessive heat or repeated passes. Never exceed 200°C.
Need the complete branded application setup?
Choose the Kerasmooth Application Kit. It pairs the professional system with the branded application tools required for sectioning, controlled application and styling.
FAQs
Does Kerasmooth BTX 50 contain formaldehyde?
The formula contains no formaldehyde and no formaldehyde donors in the INCI. Use only in a well-ventilated professional environment and follow all application instructions.
Is this a straightening treatment?
No. BTX 50 is a hair volume control treatment. It is designed to help control excess volume and frizz while maintaining the hair's natural movement and wave pattern. If the service goal is a visibly straighter finish, choose Kerasmooth Brazilian Keratin System instead.
Will it remove my client's curls?
No. The formula acts on the surface of the hair fibre without breaking disulphide bonds, so the natural curl or wave pattern is preserved. The result is reduced bulk and frizz with a smoother, more polished and more manageable finish.
Is this product suitable for home use?
No. This product is for professional salon use only and requires professional assessment, a mandatory strand test, controlled application and ventilation.
Is a strand test required?
Yes. Carry out a strand test before every application. Choose a small section from the nape or middle of the head, follow the full application instructions on that section, and check the strand afterwards. Do not proceed if the hair appears fragile, weakened or overly damaged.
How long should the product process?
Leave the product on the hair for 30 minutes once all sections are evenly covered.
Is flat-ironing required?
No. Flat-ironing is optional for BTX 50. After rinsing, dry the hair with brushing. If flat-ironing is used, work in small inch-wide sections with approximately 3–6 slow, controlled passes and never exceed 200°C.
What flat-iron temperature should be used?
Never exceed 200°C. Use a maximum of 180°C for fine hair. Flat-ironing is optional for this product.
Is the product applied to wet or dry hair?
Damp hair. Wash with Kerasmooth Shampoo, rinse thoroughly and towel-dry to remove excess water. The hair should be clean and damp — not dripping — before application.
How long can the result last?
Results may last over time with correct professional application and suitable aftercare. Individual results vary with hair condition, texture, technique and maintenance.
What aftercare should be used?
Use Kerasmooth sulphate-free shampoo and conditioner for ongoing care, and blow-dry properly after washing.
Why is the cream violet in colour?
The formula is a violet homogenous cream. The colour comes from the cosmetic colourant in the formulation and is normal for this product.
What is included in this listing?
This listing contains one 120ml bottle of Kerasmooth BTX 50 Hair Volume Control. Application tools are not included.
What is the difference between BTX 50 and Brazilian Keratin System?
Choose BTX 50 when the goal is professional frizz and volume control while maintaining the client's natural curl or wave pattern. Choose Brazilian Keratin System when the service goal is a visibly straighter and smoother finish.
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