The body produces less and less keratin starting in adolescence; coloring, heat, and UV accelerate its loss. The result: porosity, frizz, breakage, and color fading. KERABOND is the exclusive molecule that temporarily binds keratin to polypeptide chains inside the cortex: it repairs disulfide bonds and strengthens salt and hydrogen bonds. Keratin is never permanently replaced — it is replenished.

Clean Start (1 L · 500 mL) is the mandatory pre-treatment clarifying shampoo before every Keratherapy smoothing treatment. Its pH of 8.5 removes product and chemical service residue and opens the cuticle for maximum absorption. Lather it from roots to ends without massaging or scratching the scalp, rinse, and repeat two more times (three washes total). Never use conditioner afterward. For the BambooMiracle system, use the vegan Detox Shampoo instead, also three times.

Professional spray that evenly distributes keratin and amino acids throughout the hair: more uniform reduction in curls and volume, better frizz control, increased shine from roots to ends, and longer-lasting treatment results.

Smoothing is no longer an expensive service reserved for a few clients: it's about hair health, strength, ease of styling, and shine. With Keratherapy, every client in the chair can be offered a level of smoothing, from a few days to a few months, and leave with a take-home collection.

• Consultation first: hair must be healthy enough to withstand a keratin smoothing treatment. For extremely damaged or fragile hair: do not provide a keratin service; prescribe Deep Conditioning Masque regularly until the hair is rebuilt. Always follow the manufacturer's instructions and do not use excessive amounts.
• Exclusions: not recommended for those aged 12 and under; do not use during pregnancy or breastfeeding, or if you have respiratory conditions. Work in a well-ventilated area, directing airflow away from the face, eyes and nearby stations.
• Contact: in case of skin contact, rinse thoroughly; in case of eye contact or ingestion, consult a doctor. Keep out of reach of children.
• Traditional formulas: Brazilian Renewal contains formaldehyde; the safety data sheet is available from Novyco or the manufacturer.
• Certification: official certification and application videos are available at edu.keratherapy.com; application and marketing guides at pro.keratherapy.com.

1. Shampoo: wash at least three times with Clean Start, from roots to ends, without massaging or scratching the scalp. Do not use conditioner. Detangle with a wide-tooth comb.
2. Towel-dry: dry with 3 towels. Hair should be damp, not wet; mist with water if it dries during application. Never blow-dry before application.
3. Divide into 3 or 4 large sections.
4. Measure according to length and density: short ½ to ¾ oz, medium 1 to 1½ oz, long 1 to 2 oz. Shake the bottle well.
5. Apply: wear gloves and use an applicator brush, working in ¼ to ½ in. sections. Dab the product ¼ in. from the scalp, then every 1 to 1½ in. down to the ends. Massage it into the section, then comb through with a fine-tooth comb, away from the face, to remove excess. Do not rinse at this step.
6. Processing: cover with a treatment cap and sit under a warm dryer for 30 to 45 minutes. If no dryer is available, cover the cap with a towel.
7. Rinse: lukewarm water, for just 10 to 20 seconds. A small amount of product should remain in the hair. Do not shampoo.
8. Towel to remove excess water. Optional: spray Keratin Booster from roots to ends and comb through.
9. Blow-dry: medium heat, dry to 75-80% with the Keratherapy vent brush, then finish smooth with the thermal brush, using tension, until 100% dry (cool or medium heat).
10. Flat iron: start at the nape, using ¼ to ½ in. sections, from roots to ends until smooth and shiny, according to the chart below. A strand test is recommended.
11. At-home care: the client can wash their hair immediately. Results are guaranteed with Keratherapy keratin-infused care products.

The 2026 application guide recommends 4 to 5 passes (fine hair) and 5 to 7 (medium to thick hair); the 2027 stylist kit guide gives maximums. In both cases, stop when the hair looks healthy and shiny.

1. Shampoo: Clean Start, lather from roots to ends without massaging or scratching the scalp, rinse, repeat twice more.
2. Towel-dry: remove excess water; hair should be damp, not wet. Spray with water if the hair dries during application.
3. Divide into 3 or 4 large sections.
4. Measure: short ½ to ¾ oz, medium 1 to 1½ oz, long 1 to 2 oz. Start with less and add as needed.
5. Apply: gloves and brush, section into ¼ to ½ in. sections, dab ¼ in. from the scalp, then every 1 to 1½ in. to the ends. Massage, comb through with a fine-tooth comb to remove excess. Do not rinse; never apply to the scalp or skin.
6. Processing: Place under a processing cap for 30 to 45 minutes under a warm dryer (or place a towel over the cap).
7. Rinse: Use lukewarm water for just 10 to 20 seconds. Leave a small amount of product in the hair. Do not shampoo.
8. Towel dry to remove excess water. Optional: apply Keratin Booster from roots to ends.
9. Blow-drying: Use medium heat and a vent brush until 80% dry, then use a thermal brush with tension until smooth (cool or medium heat), away from the face and nearby stations.
10. Flat iron: Start at the nape, using ¼ to ½ in. sections, at 400 to 450 °F according to the chart; a test strand is recommended.
11. At-home care: Shampooing is allowed immediately; no downtime. Guaranteed results with keratin-infused Keratherapy care products.

Especially effective on thick, unruly, extremely curly, or highly resistant hair. Enriched with keratin, collagen, argan oil, and soy and rice proteins for shine, strength, and protection. Can be applied immediately after coloring; reduces blow-drying and styling time by 50% or more.

1. Shampoo: Use Clean Start only. Lather from roots to ends without massaging or scratching, rinse, and repeat twice more. If the hair was just colored: Do not use Clean Start; use Moisture or Color Protect shampoo.
2. Towel-dry: Hair should be damp, not wet; mist with water if it dries during application.
3. Section: Detangle with a wide-tooth comb, then divide into 3 or 4 large sections.
4. Measure: short hair ½ oz, medium-length hair ½ to ¾ oz, long hair ¾ to 1 oz. Start with less.
5. Apply: Wear gloves and use a brush. Work in ¼ to ½ in sections, dab ¼ in from the scalp and then every 1 to 1½ in, massage, and comb from roots to ends with a fine-tooth comb, directing hair away from the face. Do not saturate, do not rinse, and never apply to the scalp or skin.
6. Blow-dry: Use medium heat to dry to 75-80% with the vented brush, then use a thermal brush with tension (cool to medium) until smooth. Direct airflow away from the face and neighboring stations.
7. Flat iron: Starting at the nape, use ¼ to ½ in sections, 400 to 450 °F according to the chart, from roots to ends until smooth and shiny. Test a strand.
8. Rinse: rinse with water for 1 to 2 minutes. Do not shampoo.
9. Mask: Apply Deep Conditioning Mask generously, leave on for 1 to 2 minutes, rinse, and towel-dry.
10. Style: Apply a little Daily Smoothing Cream from roots to ends, comb through, then blow-dry with fingers or a thermal brush for a smoother finish. The client can wash their hair or work out immediately.

Warning: This product contains formaldehyde. Safety data sheets are available from the employer, distributor or manufacturer. Work in a well-ventilated area.

Extreme Renewal and Extreme Renewal Cocoa Crème (cocoa scent) significantly reduce frizz, curls and volume, from moderate to maximum, on all hair types: from fine textures to the thickest and most resistant. They replace damaging relaxers, are safe on color-treated hair, can be applied immediately after coloring and reduce drying and styling time by 50% or more.

1. Shampoo: Use Clean Start at least three times without massaging or scratching the scalp. Immediately after coloring or highlights: use Moisture or Color Protect shampoo instead of Clean Start.
2. Towel-dry: Hair should be damp, not wet; mist with water if it dries during application.
3. Section: Using a wide-tooth comb, divide the hair into 3 or 4 large sections.
4. Measure: Short hair: ½ oz (15 mL); medium-length hair: ½ to ¾ oz (15 to 22 mL); long hair: ¾ to 1 oz (22 to 30 mL).
5. Apply: Wear gloves and use a brush; work in ¼ to ½ in. sections, dab ¼ in. from the scalp and then every 1 to 1½ in., massage, and use a fine-tooth comb to remove excess. Do not saturate or rinse.
6. Processing: Cover with a plastic cap and place under a dryer on medium heat for 10 to 15 minutes for better penetration. Skip this step if the client wants to retain more wave.
7. Blow-dry: Use medium heat and a vent brush until 75-80% dry, then use a thermal brush with tension until 100% dry.
8. Flat iron: Starting at the nape, use ¼ to ½ in. sections and 400 to 450 °F according to the chart, until smooth and shiny. Fine hair: 4 to 5 passes; medium to thick hair: 5 to 7 passes, or until it has a healthy shine. Do a strand test.
9. After the service: The client should wait 48 hours before washing or wetting their hair or using hair ties or clips; if the hair gets wet or creased, blow-dry or flat iron it as soon as possible.
10. At-home care: keratin-infused Keratherapy collections; leave-in products seal the cuticle and protect the results.

Warning: Not recommended for children aged 12 and under, during pregnancy or breastfeeding, or for people with respiratory problems. For professional salon use only by a qualified stylist.

1. Shampoo: Use Clean Start from roots to ends without massaging or scratching; repeat on very thick hair. After coloring or highlighting the same day: Skip Clean Start and use Moisture or Color Protect shampoo.
2. Towel-dry: Hair should be damp, not wet; mist with water if it dries.
3. Section into 3 or 4 sections.
4. Apply: Start at the nape, hold the spray bottle 6 in. away, and work in 1 in. sections, using 3 to 4 sprays per section depending on length. Massage, then use a fine-tooth comb to remove excess and distribute. Gloves optional. Spray away from the face and eyes.
5. Processing: For resistant hair, leave on for 10 to 15 minutes before blow-drying. You can cut the hair during this time.
6. Blow-dry: Use a vented brush until 100% dry; use a thermal brush for a smoother finish.
7. Flat iron: Divide again into 4 sections, each ½ in. wide; make 2 to 3 passes at 400 °F (204 °C) to seal in color and block frizz. For highlighted hair: lower the temperature slightly, never below 375 °F (190 °C). Hair becomes shiny and smooth once sealed.
8. After the service: the client waits 24 hours before getting their hair wet or using hair ties or clips. Then use keratin-infused Keratherapy home-care products.

1. Shampoo: use Clean Start at least three times, from roots to ends, without massaging or scratching the scalp. Do not use conditioner. Detangle with a wide-tooth comb.
2. Towel: damp, not soaking wet; spray on a little water if the hair dries during application.
3. Divide into 3 or 4 large sections. Shake the bottle well.
4. Apply: starting at the nape, work with 2.5 to 4 cm sections and spray generously so all the hair is treated. Avoid excessive contact with the scalp. Work it in with your fingertips, then comb through with a fine-tooth comb.
5. Process: 20 minutes over the entire head. For resistant hair, a cap and hooded dryer may be used, but are not required.
6. Rinse: rinse with water for 10 to 20 seconds to remove excess product, without shampoo. Towel-dry. Optional: apply Keratin Booster from roots to ends.
7. Blow-dry: use medium heat, a brush and a hair dryer until 100% dry and perfectly smooth. Crucial step: hair must be completely dry before flat-ironing.
8. Flat iron: 3 or 4 sections, starting at the nape, with small strands; make multiple passes per section, focusing on more resistant roots, using the 400 to 450 °F guide, until shiny and smooth.
9. At-home care: no waiting time; clients can wet, tie up and clip their hair right away. Keratin-infused Keratherapy collections help maintain the results.

1. Shampoo: Detox Shampoo at least three times, from roots to ends, without massaging or scratching the scalp. Rinse thoroughly.
2. Towel-dry: remove excess moisture and detangle with a wide-tooth comb; hair should be damp, not wet.
3. Divide into 3 or 4 large sections.
4. Measure: short hair ½ to ¾ oz, medium-length hair 1 to 1½ oz, long hair 1 to 2 oz. Shake the bottle well.
5. Apply: use a brush, working in ¼ to ½ in sections. Dab ¼ in from the scalp, then every 1 to 1½ in down to the ends. Massage, then use a fine-tooth comb away from the face to remove excess. Do not saturate; never apply to the scalp or skin.
6. Processing time: 30 minutes without heat or a cap. For resistant hair: use a processing cap and a warm dryer or another heat source.
7. Rinse: for 10 to 20 seconds only, so a small amount of treatment remains in the hair. Do not shampoo. Optional: Keratin Booster.
8. Blow-dry: use medium heat and a paddle or thermal brush with tension until 100% dry.
9. Flat iron: start at the nape, working in ¼ to ½ in sections from roots to ends until smooth and shiny, at 400 to 450 °F according to the chart. Test a strand, always working away from the face.
10. At-home care: washing is allowed immediately. Use the Strength + Vegan Collection for maintenance.

1. Shampoo: use Detox Shampoo at least three times, without massaging or scratching the scalp. Rinse thoroughly.
2. Towel-dry: detangle with a wide-tooth comb; hair should be damp, not wet.
3. Divide into 3 or 4 large sections.
4. Measure: short hair ½ oz, medium-length hair ½ to ¾ oz, long hair ¾ to 1 oz.
5. Apply: use a brush, working in 6 to 12 mm sections. Dab 6 mm from the scalp, then every 2.5 to 4 cm; massage and use a fine-tooth comb to remove excess. Do not saturate, do not rinse.
6. Blow-dry: use medium heat and a vented or paddle brush until 75-80% dry, then use a round or square thermal brush with tension until 100% dry (medium or cool heat).
7. Flat iron: start at the nape, working in 6 to 12 mm sections, at 400 to 450 °F according to the chart, until smooth and shiny. Test a strand.
8. Rinse: rinse with water for 1 to 2 minutes. Do not shampoo.
9. Mask: apply a generous amount of Intense Moisture Masque, leave for 1 to 2 minutes, rinse, and towel-dry.
10. Style: with your fingers, or with a paddle or thermal brush for a smoother finish. No restrictions: wash, tie up, and style right away.

The dosage amounts for short hair (Blowout ZERO) and medium-length hair (Blowout) are partially illegible in the manufacturer’s guides; the values shown follow the other formulas of the same strength. Confirm with your educator Keratherapy.

Designed to transform even the most damaged hair: bamboo for strength and resilience, cysteine to repair broken bonds, baobab to stimulate collagen production and treat dry, frizzy hair, Swiss Pinot Noir grape seed extract (antioxidant, UV and heat protection, extends color, stimulates scalp circulation).

The entire collection is vegan, color-safe, sulfate-free, sodium chloride-free, paraben-free, gluten-free, and not tested on animals. For Reconstructor frequency and processing time, see the technical manual.

Kit guides refer to edu.keratherapy.com (certification and videos) and pro.keratherapy.com (application and marketing guides). Technical questions: education@keratherapy.com.