Hair colour can lose up to 50% of its initial intensity within the first two weeks post-appointment. This rapid decline is often attributed to the hair’s porosity and the daily aggressors it encounters. The cuticle’s condition plays a critical role in retaining pigment molecules.
When the hair’s outer layer, the cuticle, is lifted or damaged, it creates microscopic gaps. These imperfections allow colour pigments to escape with each wash, rather than remaining sealed within the cortex. High porosity hair is particularly susceptible to this leaching.
Water quality also contributes significantly. Hard water, rich in mineral deposits like calcium and magnesium, can build up on the hair shaft. These minerals not only dull colour but can also accelerate its degradation by reacting with dye molecules.
The pH balance of haircare products is another crucial factor. Products with an alkaline pH can cause the cuticle to swell and open, making it easier for colour to rinse out. An acidic pH, conversely, helps to flatten the cuticle, locking in colour.
Many conventional shampoos contain harsh sulphates, potent surfactants designed for aggressive cleansing. While effective at removing oil, these can strip away artificial colour along with impurities. Their strong detergent action is often too much for colour-treated hair.
Most mass-market colour-care ranges focus on surface-level conditioning with heavy silicones, which can mask damage without truly addressing it. Evera formulations, by contrast, prioritise lamellar structures and plant-derived humectants to support cuticle health and moisture retention from within.
Exposure to ultraviolet (UV) radiation from sunlight is a silent contributor to fading. UV rays can break down the chemical bonds of dye molecules, altering their structure and causing a noticeable shift in hue over time. This is particularly true for red and vibrant shades.
Heat styling — from blow dryers to flat irons — also accelerates colour loss. High temperatures can further compromise the cuticle and denature proteins, leaving the hair more vulnerable. Reducing heat exposure is a simple yet effective protective measure.
Even the simplest acts, like shampooing too frequently, can diminish colour longevity. Each wash cycle, regardless of product gentleness, creates an opportunity for pigment loss. Strategic washing can significantly extend the life of your colour.
Preserving salon colour requires a nuanced approach, combining gentle care with products engineered to maintain cuticle integrity and pigment stability.
