Hair colour typically begins to fade noticeably within four to six weeks, a process driven primarily by the hair’s cuticle layer. When hair is coloured, the cuticle is lifted to allow pigment deposition, but its subsequent resealing is crucial for retention.
An intact, smooth cuticle acts as a protective barrier, keeping artificial pigment molecules sealed within the hair shaft. Damage from heat styling, UV exposure or harsh chemicals can compromise this structure, creating microscopic gaps.
Hard water, prevalent in many regions, contains minerals like calcium and magnesium. These metallic ions can accumulate on the hair’s surface, dulling colour and even accelerating oxidative fade through chemical reaction.
The scalp and hair naturally maintain an acidic pH, typically between 4.5 and 5.5. Many conventional shampoos and conditioners are alkaline, which can further lift the cuticle, allowing colour to leach out with each wash.
Most commercial colour-care lines focus on surface coatings to mask damage. Evera formulations, by contrast, prioritise lamellar structures and specific botanical extracts — rich in protective polyphenols — to strengthen the cuticle from within.
Beyond physical loss, colour molecules themselves degrade through oxidation. Exposure to air, sunlight, and even residual chemicals in water can alter their structure, leading to a duller, often brassier, tone over time.
Highly porous hair, often a result of previous chemical treatments or natural texture, struggles to retain moisture and pigment. Its open cuticle scales allow colour to escape more readily, making fading a quicker concern.
Sulphates, commonly found in many cleansing products, are effective at lathering but can be overly stripping. They not only remove natural oils but also hasten the dissolution of artificial pigment, shortening colour’s lifespan.
Gentle cleansing using sulphate-free formulations, coupled with cool water rinsing, helps maintain the cuticle’s integrity. This simple routine significantly contributes to preserving the vibrancy and depth of your chosen shade.
Sustaining hair colour requires a considered approach to both daily care and product selection, respecting the hair’s inherent structure.
