Keraspa Intense is a three-step keratin smoothing system: a preparation shampoo, the smoothing treatment, and a sealing mask. Keraspa states that it removes frizz, reduces curl by up to 90% and lasts about five months, with a formaldehyde-free formula. This guide explains what each step does, who the system suits, and how to look after the result so it lasts. It is written for stylists and for experienced clients working with one; a smoothing treatment is a professional service and should be done carefully.
How the system works
About 90% of hair is keratin, and much of its shape comes from bonds between cysteine amino acids. Keraspa's Matrix Plus technology is a complex of cysteine amino acids that releases proteins sequentially; heat from the flat iron then sets the hair in its smoother shape. Babassu oil, wheat germ oil, carob and vitamin E improve moisture, and collagen and keratin are infused into the hair across all three steps.
Step 1 — Kera 1 Collagen Shampoo
Kera 1 (pH 4) contains keratin, collagen and polyquaternium and removes every impurity from the hair shaft, so the treatment can absorb evenly. Wash twice, then blow-dry the hair completely.
Step 2 — Kera 2 Smoothing Treatment
Kera 2 (pH 1.5) is applied section by section from about 1 cm off the scalp to the ends and combed through, left to act, then blow-dried and flat-ironed in thin sections. Measuring the product with a 4 oz measuring cup keeps the dose consistent. Choose 300 ml for occasional use or 1 L for a busy salon.
Step 3 — Kera 3 Collagen Mask
Kera 3 (pH 3) brings the hair back to its natural pH and seals the cuticle. Babassu oil, shea butter, collagen and keratin restore flexibility so the hair does not feel stiff. Rinse without shampoo, apply for 5 to 10 minutes, rinse and style.
Trying it for the first time
The Kera Mini kit contains all three steps at 60 ml, enough for one application on short to shoulder-length hair.
Who it suits — and who should look elsewhere
The system suits curly, wavy, very frizzy and unmanageable hair, including hair damaged by chemical processes. If you love your curl pattern and only want less frizz, a deep treatment such as the Botox Duo or H.A. Botox is a gentler choice that smooths without reshaping the curl.
Aftercare: how to make it last
- Wait the time your stylist recommends before the first wash.
- Wash with S+ Sulfate-Free Shampoo: sulfates and salt shorten the life of a smoothing treatment.
- Condition with C+ Anti-Frizz Conditioner to keep the cuticle sealed. The S+ & C+ duo costs 2.5% less than the two separately.
- Protect the hair before heat with Thermal Protector, and finish dry ends with Amazon Serum.
- A monthly Rejuvenating Collagen Treatment can help extend the result between services.
FAQ
How long does Keraspa Intense last?
Keraspa states approximately five months, and that continued use gives optimum results even on the unruliest hair.
Does it contain formaldehyde?
Keraspa describes the Intense formula as formaldehyde-free, smoothing physically with cysteine amino acids.
Can I colour my hair after a smoothing treatment?
Ask your stylist about timing. Afterwards, S+ and C+ are colour-safe, so they protect both the smoothing and the colour.
Why is Kera 3 a mask and not a conditioner?
Kera 2 works at a very low pH. Kera 3 is formulated to bring the hair back to balance and seal the cuticle, which an ordinary conditioner is not designed to do.
Shop the full system on the Keraspa collection page, or read our Keraspa buying guide.