KeraStraight KS Ultimate

KS Ultimate is the ultimate solution to transform dry, damaged and unruly hair into repaired, strengthened and straightened hair that is both easy to manage and luxuriously soft to touch.

KS Ultimate is a universal treatment that can be easily adapted to every hair type. This amazing new treatment transforms hair with incredible straightening power whilst strengthening and rebuilding the hair beyond compare.

KeraStraight’s groundbreaking KS Ultimate treatment combines the ease, speed and simplicity of the earliest Brazilian Keratin treatments, with the strengthening and repairing benefits of KeraStraight’s award winning protein treatments.


  • Straightens & repairs simultaneously
  • Time saving
  • Lasts up to 4 months
  • Eliminates frizz
  • Strengthens & repairs to the last tip
  • Advanced protein technology
  • Health & safety certified




Shampoo twice with Pre-TreatmentCleanser. For very curly and resistant hair types leave 2nd shampoo on for 5 minutes (and cover with a plastic cap). Apply Pre-Treatment Spray Plus in sections on to towel dried hair and comb Through. Concentrate on the most porous areas.



KS Ultimate is applied in 2 – 3cm sections, close to the root, but not onto the root. Ensure all hair is kept damp during the treatment by covering with a plastic cap. Leave for 30 – 45 minutes.



Rinse for 10 – 20 seconds, do not shampoo (rinse white and very blonde hair for an extra minute). Gently squeeze moisture out. Apply Moisture Lock, comb through and leave for 2 minutes. Rinse for 20 – 30 seconds.



Blow dry hair 100% (brushes may be used). Iron hair slowly in 2 – 3cm sections using the EasyComb. For a perfect first pass, iron the hair from roots to ends in one smooth motion to seal in the smoothness; leave to cool for 2 seconds. Continue ironing the section using the Application Matrix for the recommended heat setting and number of passes. Ends will often need less passes. For an ultimate final finish, iron the hair once at 180°C/355°F in large sections.



Hair can be shampooed after just 30 minutes, although most clients will prefer
to leave and shampoo themselves at home. Hair must be rinsed for 3 – 5 minutes before first shampoo. Moisture and Volume Enhance
Shampoo and Conditioner should always be used as they are Sodium
Chloride free and contain KS Complex to maximise the benefits and longevity.