Cold hair repair
What cold repair is
It is an intensive conditioning and restructuring treatment carried out without any heat (no dryer, no flat iron, no lamp). The key difference from hair botox or keratin straightening is that there is no stage where the formula is sealed in at high temperature.
Key features and how it works:
The treatment is particularly recommended for:
It is an intensive conditioning and restructuring treatment carried out without any heat (no dryer, no flat iron, no lamp). The key difference from hair botox or keratin straightening is that there is no stage where the formula is sealed in at high temperature.
Key features and how it works:
- The physics and chemistry: it is based on the ability of special active ingredients (most often cationic polymers and hydrolysed proteins) to penetrate the cortex, the inner layer of the hair, and fill its damaged areas thanks to the difference in ionic charge. In plain words, the particles are drawn to the negatively charged damaged spots and seal them.
- The cold method: because no heat is applied, the process is far gentler on the hair. There is no risk of over-drying it or causing extra heat damage. That makes it ideal for very weakened, brittle hair.
- Several stages: this is usually not a single product but a whole protocol: deep cleansing, applying the repair formula, processing time, rinsing, and fixing with a neutralising or conditioning product.
- Immediate change: you see it straight after the session. Hair becomes remarkably smooth, manageable and heavy.
- Restored structure: the dry, porous feel disappears. Strands stop tangling and comb through easily.
- Healthy shine: the irregularities are filled and the cuticle is even, so light reflects uniformly and a rich, cool shine appears, not a silicone one.
- Lasting hydration: hair holds moisture inside better and reacts less to humid air.
- Hair that feels alive: the goal here is reconstruction, not straightening. Your natural texture (a light wave) can stay, only groomed. Volume does not suffer, unlike with some keratin treatments.
- Depth of penetration: formulas differ in molecule size. Smaller molecules go deeper and last longer, larger ones work on the surface and build a protective film.
- Brands and focus: some products target repair after bleaching, some are made for coloured hair, some fight split ends.
- Longevity: the effect is cumulative. A course of 1 to 3 sessions with 2 to 4 weeks between them is recommended. A single session lasts 2 to 4 weeks on average, but after a full course hair reaches a new, healthier level.
The treatment is particularly recommended for:
- Badly damaged, brittle, porous hair.
- Hair after frequent colouring or bleaching.
- Preparation for complex colouring, as baseline rehabilitation.
- Hair that will not hold its shape or its colour.