A keratin treatment reduces visible frizz and makes daily styling easier. The result also depends on how you wash, style and protect your hair after leaving the salon. Aftercare differs between treatment systems. Follow the instructions for the exact formula used on your hair, then build a routine that supports the result without placing extra stress on the lengths.
In Case You Are Not Sure What Keratin Treatment Is
Keratin is a structural protein found naturally in the hair. A professional keratin treatment uses a smoothing formula and controlled heat to reduce visible frizz and improve manageability.
The formula, application method and starting condition of the hair shape the keratin treatment before and after results. Straight, wavy, curly and coily textures also respond differently.
Aftercare requirements vary between treatment systems. Some formulas require a waiting period before washing or tying the hair, while others are rinsed in the salon. Follow the instructions provided for the exact treatment used on your hair.
8+ Tips You Need for Keratin Treatment Aftercare
The first few days influence how the treatment settles. Your washing routine, styling habits and product choices then affect how the hair feels between appointments.
The main after-keratin treatment care tips include:
- Wait Before Washing
- Use Sulphate-Free Shampoo and Conditioner
- Avoid Salt Water and Chlorine
- Minimise Heat Styling
- Prioritise Regular Touch-ups
- Use Silk Pillowcase
- No Hair Tying or Clips
- Use Keratin-Infused Products
1. Wait Before Washing
Some traditional keratin treatments require the hair to remain dry for 48 to 72 hours. Other formulas are rinsed in the salon or follow a shorter waiting period.
Confirm the first-wash timing before leaving your appointment. Do not apply the same three-day rule to every treatment.
When a setting period applies, avoid washing, swimming and heavy sweating. Protect the hair from rain and excess shower steam.
Washing too early may affect a treatment that is still settling. Contact the salon for advice if the hair becomes wet during this period.
2. Use Sulphate-Free Shampoo and Conditioner
Once the recommended waiting period has ended, use a gentle shampoo and conditioner suited to chemically treated hair. Sulphate-free formulas are commonly recommended, while some treatment systems also advise avoiding sodium chloride and strong clarifying shampoos that cleanse the hair more aggressively.
For many clients, washing two or three times a week provides a practical balance between maintaining the smooth finish and keeping the scalp clean. Apply shampoo mainly to the roots and conditioner from the mid-lengths to the ends. Dry shampoo may help absorb oil between washes, but it should not replace proper cleansing or remain on the scalp for several consecutive days.
Lady and the Hair works with professional ranges from Redken, L’Oréal, Kérastase and Olaplex. Product recommendations reflect the treatment used and the condition of the hair.
Blonde, grey, highlighted or balayage hair may also benefit from a suitable purple shampoo for colour-treated hair, while these shampoo and conditioner options for curly or frizzy hair address different texture and moisture needs.
3. Avoid Salt Water and Chlorine
Salt water and chlorinated pools may leave treated hair feeling dry, rough or more difficult to manage. Repeated exposure may also cause the visible smoothing result to fade sooner, particularly when chlorine or seawater is allowed to dry on the hair.
Before swimming, saturate the hair with clean water and apply a lightweight leave-in conditioner through the lengths. Pre-wetting helps reduce how much pool or seawater the hair absorbs, while a swimming cap provides another physical barrier. Rinse with fresh water immediately after swimming, then condition the mid-lengths and ends.
4. Minimise Heat Styling
A keratin treatment usually reduces the need for frequent straightening or lengthy blow-drying. Limiting unnecessary heat helps protect treated lengths from dryness and breakage, particularly when the hair has also been bleached, coloured or lightened.
Apply thermal protectant before using a blow-dryer, straightener or curling tool. Use low-to-medium heat where possible and limit styling tools to one or two controlled passes over each section. Heat protectant reduces exposure, but it does not make repeated high-temperature styling harmless.
5. Prioritise Regular Touch-ups
Keratin treatment results gradually fade as the hair is washed and natural texture becomes more visible through new root growth. Many clients reassess their results at around three to four months, but the right maintenance timing also reflects the treatment formula, washing routine, colour history and condition of the hair.
Arrange an assessment when new growth, frizz or changes in manageability begin to affect the finish. Previously treated lengths should be checked for dryness, brittleness or breakage before another application. A tailored touch-up may focus on new growth rather than repeatedly processing sections that remain smooth.
6. Use Silk Pillowcase
Replacing a cotton pillowcase with silk or satin creates a smoother surface for treated hair while you sleep. Reduced friction may help limit tangling, morning frizz, pressure marks and unnecessary pulling on the lengths.
A silk or satin pillowcase supports gentler overnight care, but it does not determine how long the treatment lasts. During any required setting period, leave the hair loose and position longer lengths above the pillow rather than trapping them beneath your head or shoulders.
7. No Hair Tying or Clips
When a treatment requires a 48-to-72-hour setting period, keep the hair loose and avoid ties, clips, bobby pins, braids, headbands and tucking the front sections behind your ears. Sustained pressure may leave visible creases or disrupt the intended smooth finish.
Once tying is permitted, replace tight elastic bands with silk scrunchies, fabric-covered ties or soft spiral cords. Avoid securing the hair in the same tight position for several hours and limit accessories with metal clasps that pull against the strands.
Treatments completed and rinsed in the salon may not carry the same three-day restriction, so the waiting period should match the formula that was used.
8. Use Keratin-Infused Products
Keratin-infused masks, conditioners and leave-in sprays may help improve the surface feel and manageability of some treated, porous or compromised hair. However, these products do not permanently replace the salon treatment or continuously replenish the hair’s natural protein.
Use a keratin mask or leave-in treatment around once a week when it suits your hair condition. Applying several protein-rich products together may leave some hair feeling stiff, rough or less flexible, so balance strengthening care with moisture and avoid choosing a product solely because the label contains the word “keratin”.
How to Make Your Keratin Treatment Last Longer
- Wait 48 to 72 hours when required: Keep the hair dry and loose during the initial setting period specified for your treatment. Avoid washing, swimming, heavy sweating, clips and tight hair ties.
- Wash two or three times a week: This frequency often provides a practical balance between maintaining the smooth finish and keeping the scalp clean. Apply shampoo mainly to the roots and conditioner from the mid-lengths to the ends.
- Check for sulphates and sodium chloride: Choose gentle products designed for chemically treated hair. Avoid using strong clarifying or detox shampoos every week, as they cleanse more deeply and may cause the result to fade sooner.
- Use dry shampoo for no more than one or two days at a time: Apply it only to oily roots, then wash the scalp properly to prevent powder, oil and styling residue from building up.
- Keep styling tools around 150°C to 180°C: Use the lower end of this range for bleached, porous or fragile hair. Apply thermal protectant and limit straighteners or curling tools to one or two passes over each section.
- Blot for 10 to 15 seconds per section: Use a microfibre towel to absorb excess water instead of rubbing, twisting or tightly wrapping wet hair.
- Protect the hair before every swim: Saturate the lengths with fresh water, apply a lightweight leave-in conditioner and wear a swimming cap where practical. Rinse the hair immediately after leaving the pool or sea.
- Use soft accessories after the setting period: Choose silk scrunchies, fabric-covered ties or soft spiral cords, and avoid wearing the hair in the same tight position for more than several hours.
- Add UV protection for extended outdoor exposure: Apply a lightweight UV-protective mist or wear a hat when spending more than 30 minutes in strong sunlight, particularly between 10 am and 4 pm.
- Reassess the result after three to four months: New growth and gradual fading often become more visible within this period, but check the condition of previously treated lengths before repeating the service.
Keep Your Hair Strong, Stylish and Healthy
The right aftercare helps preserve the smoothness and manageability of your keratin treatment. At Lady and the Hair, our stylists assess your hair texture, condition and colour history before recommending suitable care from Redken, L’Oréal, Kérastase and Olaplex.
Visit our Melton salon or Sunbury salon for personalised keratin aftercare advice in Melbourne’s western suburbs. As a Sustainable Salons member, Lady and the Hair recycles up to 95% of salon waste.
Book a personalised consultation to discuss your treatment, product selection and home-care routine.
FAQs About After-Keratin Treatment Care
1. When can I tie my hair after keratin treatment?
Some traditional keratin treatments require the hair to remain loose for 48 to 72 hours, while formulas rinsed in the salon may allow tying sooner. During the setting period, avoid tight ties, clips, braids, headbands and tucking the hair behind your ears. Once tying is permitted, use a soft silk or satin scrunchie to reduce friction and pressure on treated hair.
2. What are the dos and don’ts after keratin treatment?
Dos:
- Keep the hair dry for 48 to 72 hours when required.
- Use sulphate-free shampoo and conditioner.
- Wash around two or three times a week.
- Apply thermal protectant before heat styling.
- Sleep on a silk or satin pillowcase.
- Pre-wet the hair and apply leave-in conditioner before swimming.
- Rinse chlorine and saltwater from the hair immediately.
Don’ts:
- Wash, swim or sweat heavily during the setting period.
- Use strong clarifying or detox shampoo every week.
- Tie, clip or tuck the hair before the waiting period ends.
- Apply repeated high heat to the same section.
- Allow chlorine or seawater to dry on the hair.
- Repeat the treatment without checking the condition of previously treated lengths.
3. Does hair grow faster after keratin?
A keratin treatment does not increase the rate of hair growth at the follicle. A smoother finish may reduce tangling and mechanical breakage for some clients, which can help the hair retain more length over time. Results still depend on the treatment formula, heat exposure and existing hair condition.
4. What happens if I wash my hair too soon after keratin treatment?
Washing too early may reduce the smoothness of treatments that require a 48 to 72 hours setting period. The hair may develop more visible texture or lose part of the expected finish. Gently dry the hair and avoid applying repeated high heat in an attempt to correct it. Treatments completed and rinsed in the salon may not have the same restriction.
5. What Shampoo Should I Use After Keratin Treatment?
After the recommended waiting period, use a gentle sulphate-free shampoo and conditioner designed for chemically treated hair. Check the ingredient list for sodium chloride and avoid strong clarifying shampoos, which may cause the smooth finish to fade sooner.
Apply shampoo mainly to the scalp and conditioner from the mid-lengths to the ends, using lukewarm rather than hot water. Lady and the Hair works with professional ranges from Redken, L’Oréal, Kérastase and Olaplex, allowing aftercare recommendations to reflect your treatment, colour history and current hair condition.
