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The Keratin Complex Smoothing System is a professional treatment that works keratin deep into the hair cuticle, then seals it in with a flat iron for smoother, shinier, more manageable hair. This booking is for the Kerasilk smoothing system, tailored for hair below shoulder length, and takes 120 to 150 minutes at Timba in Cardiff.
More information
What the treatment involves
Below-shoulder hair needs extra time and product to smooth evenly from root to end, which is why this service runs longer than treatments for shorter lengths. The process typically includes:
- A thorough cleanse to remove buildup and open the cuticle
- Careful sectioning of the hair
- Even application of the keratin smoothing formula through mid-lengths and ends
- Blow-drying, followed by detailed flat-ironing to seal the keratin in place
Our team, including senior stylists Emma Stokes and Hannah James, along with stylists Lucy Osborne and Chloe Phillips, can talk through the process and tailor the number of flat-iron passes to your hair type and desired result.
Who it suits
This treatment works well for most hair types, including wavy, curly, frizzy, or chemically processed hair. It's worth considering if you want:
- Noticeably less frizz and easier everyday styling
- Softer, shinier hair without permanently altering your natural texture
- A treatment that gradually fades rather than restructures the hair
If you like to wear your hair curly, let your stylist know you want to reduce frizz and bulk while keeping some natural movement, so they can adjust the amount of product and heat used.
What to expect afterwards
Results usually last a few months, though this varies by hair type and aftercare. Coarser or more resistant hair may need more passes, while fine hair tends to smooth more quickly.
- Avoid washing or tying hair back for the first 72 hours
- Switch to sulfate-free, keratin-friendly shampoo and conditioner afterwards
- Avoid strong clarifying shampoos, chlorine, and saltwater to help the treatment last
- Book a consultation first if hair is very damaged or over-processed, or if you have respiratory sensitivities, so we can discuss suitable formulas and salon ventilation
How it compares
Keratin smoothing is not the same as permanent straightening. It doesn't break and reform the hair's internal bonds, so your natural texture returns gradually as the treatment fades and new hair grows in. For clients wanting ongoing frizz control, repeat treatments a few times a year help maintain results, particularly for longer hair that's more exposed to everyday styling and environmental stress.
Frequently Asked Questions
How long does the treatment take for below-shoulder hair?
How much does it cost?
Will it make my hair completely straight?
How long do results last?
What aftercare is needed?
Can I still wear my hair curly afterwards?
Is this treatment suitable for damaged or colour-treated hair?
Should I get colour done before or after this treatment?
Is this a permanent straightening treatment?
Available Team Members
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